FIELD OF THE INVENTION

The present invention provides engineered human alpha-galactosidase polypeptides and compositions thereof. The engineered human alpha-galactosidase polypeptides have been optimized to provide improved thermostability, serum stability, reduced immunogenicity, improved cellular uptake, and stability under both acidic (pH<4) and basic (pH>7) conditions, and improved globotriaosylceramide clearance from cells. The invention also relates to the use of the compositions comprising the engineered human alpha-galactosidase polypeptides for therapeutic purposes.

REFERENCE TO SEQUENCE LISTING, TABLE OR COMPUTER PROGRAM

The official copy of the Sequence Listing is submitted concurrently with the specification as an ASCII formatted text file via EFS-Web, with a file name of “CX7-184WO2_ST25.txt”, a creation date of Dec. 19, 2019, and a size of 1.67 megabytes. The Sequence Listing filed via EFS-Web is part of the specification and is incorporated in its entirety by reference herein.

BACKGROUND OF THE INVENTION

Human alpha galactosidase (“GLA”; EC 3.2.1.22) is a lysosomal glycoprotein responsible for hydrolyzing terminal alpha galactosyl moieties from glycolipids and glycoproteins. It works on many substrates present in a range of human tissues. Fabry disease (also referred to as angiokeratoma corporisdiffusum, Anderson-Fabry disease, hereditary dystopic lipidosis, alpha-galactosidase A deficiency, GLA deficiency, and ceramide trihexosidase deficiency) is an X-linked inborn error of glycosphingolipid catabolism that results from deficient or absent activity of alpha-galactosidase A. Patients affected with Fabry disease accumulate globotriaosylceramide (referred to herein as “Gb3” and “Gb3”) and related glycosphingolipids in the plasma and cellular lysosomes of blood vessels, tissue and organs (See e.g., Nance et al., Arch. Neurol., 63:453-457 [2006]). As the patient ages, the blood vessels become progressively narrowed, due to the accumulation of these lipids, resulting in decreased blood flow and nourishment to the tissues, particularly in the skin, kidneys, heart, brain, and nervous system. Thus, Fabry disease is a systemic disorder that manifests as renal failure, cardiac disease, cerebrovascular disease, small-fiber peripheral neuropathy, and skin lesions, as well as other disorders (See e.g., Schiffmann, Pharm. Ther., 122:65-77 [2009]). Affected patients exhibit symptoms such as painful hands and feet, clusters of small, dark red spots on their skin, the decreased ability to sweat, corneal opacity, gastrointestinal issues, tinnitus, and hearing loss. Potentially life-threatening complications include progressive renal damage, heart attacks, and stroke. This disease affects an estimated 1 in 40,000-60,000 males, but also occurs in females. Indeed, heterozygous women with Fabry disease experience significant life-threatening conditions including nervous system abnormalities, chronic pain, fatigue, high blood pressure, heart disease, kidney failure, and stroke, thus requiring medical treatment (See e.g., Want et al., Genet. Med., 13:457-484 [2011]). Signs of Fabry disease can start any time from infancy on, with signs usually beginning to show between ages 4 and 8, although some patients exhibit a milder, late-onset disease. Treatment is generally supportive and there is no cure for Fabry disease, thus there remains a need for a safe and effective treatment.

SUMMARY OF THE INVENTION

The present invention provides engineered human alpha-galactosidase polypeptides and compositions thereof. The engineered human alpha-galactosidase polypeptides have been optimized to provide improved thermostability, serum stability, reduced immunogenicity, improved cellular uptake, and stability under both acidic (pH<4) and basic (pH>7) conditions, and improved globotriaosylceramide clearance from cells. The invention also relates to the use of the compositions comprising the engineered human alpha-galactosidase polypeptides for therapeutic purposes.

The present invention provides recombinant alpha galactosidase A and/or biologically active recombinant alpha galactosidase A fragment comprising an amino acid sequence comprising at least about 70%, at least about 75%, at least about 80%, at least about 85%, at least about 90%, at least about 91%, at least about 92%, at least about 93%, at least about 94%, at least about 95%, at least about 96%, at least about 97%, at least about 98%, or at least about 99% sequence identity to SEQ ID NO:8. The present invention provides recombinant alpha galactosidase A and/or biologically active recombinant alpha galactosidase A fragment comprising an amino acid sequence comprising at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, or at least 99% sequence identity to SEQ ID NO:8.

The present invention also provides recombinant alpha galactosidase A wherein said comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 8, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 44, 44/217, 44/217/316, 44/217/322, 44/217/322/337, 44/247, 44/247/302, 44/247/302/322, 44/247/322, 44/247/337, 44/247/362, 44/302, 44/337, 44/373, 217/322, 217/373, 247/322, 247/362, 302/322/362/373, 302/337, 316, 316/337, 322, 322/337, 362/373, and 373, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 8. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 8, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 44L, 44L/217F, 44L/217F/316L, 44L/217F/322M, 44L/217F/322M/337A, 44L/247N, 44L/247N/302Q, 44L/247N/302Q/322M, 44L/247N/322M, 44L/247N/337A, 44L/247N/362K, 44L/302Q, 44L/337A, 44L/373R, 217F/322M, 217F/373R, 247N/322M, 247N/362K, 302Q/322M/362K/373R, 302Q/337A, 316L, 316L/337A, 322M, 322M/337A, 362K/373R, and 373R, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 8. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 8, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from R44L, R44L/R217F, R44L/R217F/D316L, R44L/R217F/I322M, R44L/R217F/I322M/P337A, R44L/D247N, R44L/D247N/K302Q, R44L/D247N/K302Q/I322M, R44L/D247N/I322M, R44L/D247N/P337A, R44L/D247N/Q362K, R44L/K302Q, R44L/P337A, R44L/K373R, R217F/I322M, R217F/K373R, D247N/I322M, D247N/Q362K, K302Q/I322M/Q362K/K373R, K302Q/P337A, D316L, D316L/P337A, I322M, I322M/P337A, Q362K/K373R, and K373R, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 8.

The present invention also provides recombinant alpha galactosidase A wherein said comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 8, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 10/39/44/47/92/166/206/217/247/261/271/302/316/322/337/362/368/373/392, 44/217/316, 44/217/322/337, 166/362, 217/373, and 362/373, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 8. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 8, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 10T/39M/44L/47S/92Y/166S/206K/217F/247N/261A/271H/302Q/316L/322M/337A/362K/368W/373R/392M, 44L/217F/316L, 44L/217F/322M/337A, 166A/362K, 217F/373R, and 362K/373R, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 8. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 8, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from P10T/E39M/R44L/T47S/H92Y/P166S/A206K/R217F/D247N/G261A/A271H/K302Q/D316L/I322M/P337A/Q362K/A368W/K373R/T392M, R44L/R217F/D316L, R44L/R217F/I322M/P337A, P166A/Q362K, R217F/K373R, and Q362K/K373R, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 8.

The present invention also provides recombinant alpha galactosidase A wherein said comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 58, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 7, 7/48/68, 7/48/68/120/282/299, 7/48/130/282, 7/48/180, 7/68/130/282/365, 7/68/180, 7/88/120/305/365, 7/120, 7/130, 7/282, 7/305, 7/305/365, 7/365, 39, 47, 47/87/95/96/158/162, 47/95, 47/273, 47/343, 48, 48/68, 48/180/282, 48/282, 48/282/305, 67/180, 68, 68/299/300, 71, 87/91/95/96/158/162, 87/91/95/96/206/343, 87/96/155/273/343, 88, 91/95, 91/95/96, 92, 93, 96, 96/273, 96/312/343, 120, 120/299/305, 151, 158, 158/162/273, 162, 162/273, 162/343, 166, 178, 180, 181, 206, 217, 271, 273, 273/343, 282, 282/365, 293/391, 299/300, 299/300/305/365, 300, 301, 305, 305/365, 314, 333, 336, 337, 343, 345, 363, 365, 370, 389, 393, 394, 396/398, 397, and 398, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 58. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 58, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 7L, 7L/48D/68E, 7L/48D/68E/120H/282N/299R, 7L/48D/130E/282N, 7L/48D/180G, 7L/68E/130E/282N/365V, 7L/68E/180G, 7L/88A/120H/305G/365V, 7L/120H, 7L/130E, 7L/282N, 7L/305G, 7L/305G/365V, 7L/365V, 39V, 47D, 47D/87K/95E/96L/158R/162H, 47D/95E, 47D/273P, 47D/343G, 47V, 48D, 48D/68E, 48D/180G/282N, 48D/282N, 48D/282N/305G, 67T/180G, 68E, 68E/299R/300I, 71P, 87K/91Q/95E/96L/158A/162K, 87K/91Q/95E/96L/206S/343G, 87K/96I/155N/273P/343G, 88A, 91Q/95E, 91Q/95E/96L, 92F, 92T, 93I, 96L, 96L/273P, 96L/312Q/343G, 120H, 120H/299R/305G, 151L, 158A, 158A/162K/273G, 158R, 162H/343D, 162K, 162K/273P, 162S, 166K, 178G, 178S, 180G, 180L, 180T, 180V, 181A, 206K, 206S, 217K, 271R, 273P, 273P/343G, 282N, 282N/365V, 293P/391A, 299R/300I, 299R/300I/305G/365V, 300I, 301M, 305G, 305G/365V, 314A, 333F, 333G, 336V, 337R, 343D, 343G, 345A, 345Q, 363Q, 365A, 365Q, 365V, 370G, 389K, 393V, 394K, 396G/398T, 397A, 398A, 398P, 398S, and 398V, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 58. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 58, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from R7L, R7L/E48D/Q68E, R7L/E48D/Q68E/Y120H/D282N/Q299R, R7L/E48D/D130E/D282N, R7L/E48D/F180G, R7L/Q68E/D130E/D282N/F365V, R7L/Q68E/F180G, R7L/Q88A/Y120H/N305G/F365V, R7L/Y120H, R7L/D130E, R7L/D282N, R7L/N305G, R7L/N305G/F365V, R7L/F365V, E39V, T47D, T47D/R87K/S95E/K96L/L158R/R162H, T47D/S95E, T47D/S273P, T47D/K343G, T47V, E48D, E48D/Q68E, E48D/F180G/D282N, E48D/D282N, E48D/D282N/N305G, P67T/F180G, Q68E, Q68E/Q299R/L300I, S71P, R87K/N91Q/S95E/K96L/L158A/R162K, R87K/N91Q/S95E/K96L/A206S/K343G, R87K/K96I/H155N/S273P/K343G, Q88A, N91Q/S95E, N91Q/S95E/K96L, H92F, H92T, V93I, K96L, K96L/S273P, K96L/P312Q/K343G, Y120H, Y120H/Q299R/N305G, D151L, L158A, L158A/R162K/S273G, L158R, R162H/K343D, R162K, R162K/S273P, R162S, P166K, W178G, W178S, F180G, F180L, F180T, F180V, Q181A, A206K, A206S, R217K, A271R, S273P, S273P/K343G, D282N, D282N/F365V, L293P/Q391A, Q299R/L300I, Q299R/L300I/N305G/F365V, L300I, R301M, N305G, N305G/F365V, S314A, S333F, S333G, I336V, P337R, K343D, K343G, V345A, V345Q, L363Q, F365A, F365Q, F365V, S370G, T389K, S393V, L394K, D396G/L398T, L397A, L398A, L398P, L398S, and L398V, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 58.

The present invention also provides recombinant alpha galactosidase A wherein said comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 158, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 24/202, 39/47, 39/47/217, 39/151, 39/282/337/398, 39/337/343/398, 39/393/398, 47/130, 47/151, 47/343/345/393, 48, 48/68, 48/68/217/333/391/393, 48/68/333, 48/217, 48/333, 48/345/393, 48/393, 59/143, 68, 68/345, 130, 130/158, 130/158/393, 130/345/393, 143/271, 143/333, 143/387, 151, 151/158/217/343/345/393, 151/206/282/337/343/345/398, 151/282/393, 151/345/393/398, 151/393, 158, 158/393, 202, 206, 206/217, 217, 217/333, 217/337/345/398, 271, 282/393, 333, 333/345, 337/343/345/398, 343, 343/345/393/398, 393, and 393/398, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 158. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 158, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 24S/202N, 39V/47D, 39V/47V/217K, 39V/151L, 39V/282N/337R/398A, 39V/337R/343G/398A, 39V/393V/398A, 47V/130E, 47V/151L, 47V/343D/345Q/393V, 48D, 48D/68E, 48D/68E/217K/333F/391A/393V, 48D/68E/333F, 48D/217K, 48D/333F, 48D/333G, 48D/345Q/393V, 48D/393V, 59A/143S, 68E, 68E/345Q, 130E, 130E/158R, 130E/158R/393V, 130E/345Q/393V, 143S/271N, 143S/333N, 143S/387N, 151L, 151L/158R/217K/343G/345Q/393V, 151L/206S/282N/337R/343D/345Q/398A, 151L/282N/393V, 151L/345Q/393V/398A, 151L/393V, 158R, 158R/393V, 202N, 206S, 206S/217K, 217K, 217K/333F, 217K/333G, 217K/337R/345Q/398A, 271N, 282N/393V, 333F/345Q, 333G, 333N, 337R/343G/345Q/398A, 343D, 343D/345Q/393V/398A, 393V, and 393V/398A, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 158. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 8, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from D24S/D202N, E39V/T47D, E39V/T47V/R217K, E39V/D151L, E39V/D282N/P337R/L398A, E39V/P337R/K343G/L398A, E39V/S393V/L398A, T47V/D130E, T47V/D151L, T47V/K343D/V345Q/S393V, E48D, E48D/Q68E, E48D/Q68E/R217K/5333F/Q391A/S393V, E48D/Q68E/S333F, E48D/R217K, E48D/S333F, E48D/S333G, E48D/V345Q/S393V, E48D/S393V, C59A/C143S, Q68E, Q68E/V345Q, D130E, D130E/L158R, D130E/L158R/S393V, D130E/V345Q/S393V, C143S/A271N, C143S/S333N, C143S/E387N, D151L, D151L/L158R/R217K/K343G/V345Q/S393V, D151L/A206S/D282N/P337R/K343D/V345Q/L398A, D151L/D282N/S393V, D151L/V345Q/S393V/L398A, D151L/S393V, L158R, L158R/S393V, D202N, A206S, A206S/R217K, R217K, R217K/5333F, R217K/5333G, R217K/P337R/V345Q/L398A, A271N, D282N/S393V, 5333F/V345Q, S333G, S333N, P337R/K343G/V345Q/L398A, K343D, K343D/V345Q/S393V/L398A, S393V, and S393V/L398A, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 158.

The present invention also provides recombinant alpha galactosidase A wherein said comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 372, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 10, 10/39/44/322, 10/39/92/206/217/271, 10/39/92/247, 10/39/92/247/271/316, 10/44, 10/44/47/92/247, 10/44/47/261/302/322/368, 10/44/92/316/322, 10/44/261/302/316, 10/44/302/337/368, 10/47/217/247/316/392, 10/47/217/322, 10/47/271, 10/92, 10/92/206/217/247, 10/92/206/247/316/322/392, 10/92/206/247/322/368, 10/92/217/261/302/337, 10/206/217/271, 10/206/247, 10/206/261/271/316, 10/261, 10/271/302, 10/302, 10/302/316, 10/302/322/337, 10/316/322, 10/337/392, 10/368, 39/44/92/162/247/302/316/322, 39/44/92/217/322, 39/44/92/247/271/302, 39/47/92/247/302/316/322, 39/47/217/247/368, 39/47/247, 39/92/247/302/316/337/368, 39/92/316/322, 39/247/271, 39/247/271/316, 39/322, 44/47/92/206/217/316/322, 44/47/92/247/261/271/316/337/368, 44/47/206/217/247/271/322, 44/47/247/322/368, 44/47/302/316/322, 44/92/206/247/368, 44/206/337, 44/247/261/302/316, 44/247/261/302/316/322, 47/92/247/271, 47/217/302, 47/247, 47/247/271, 89/217/247/261/302/316, 92/217/271, 92/247, 92/247/271/322, 92/247/302/322/337, 92/271/337, 92/302, 92/316, 206/217/271/392, 217/247/316/322/337/368, 247, 247/271, 247/302, 271, 271/302/322, 271/316/322, 302/322/368, and 368, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 372. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 372, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 10P, 10P/39E/44R/322I, 10P/39E/92H/206A/217R/271A, 10P/39E/92H/247D, 10P/39E/92H/247D/271A/316D, 10P/44R, 10P/44R/47T/92H/247D, 10P/44R/47T/261G/302K/322I/368A, 10P/44R/92H/316D/322I, 10P/44R/261G/302K/316D, 10P/44R/302K/337P/368A, 10P/47T/217R/247D/316D/392T, 10P/47T/217R/322I, 10P/47T/271A, 10P/92H, 10P/92H/206A/217R/247D, 10P/92H/206A/247D/316D/322I/392T, 10P/92H/206A/247D/322I/368A, 10P/92H/217R/261G/302K/337P, 10P/206A/217R/271A, 10P/206A/247D, 10P/206A/261G/271A/316D, 10P/261G, 10P/271A/302K, 10P/302K, 10P/302K/316D, 10P/302K/322I/337P, 10P/316D/322I, 10P/337P/392T, 10P/368A, 39E/44R/92H/162M/247D/302K/316D/322I, 39E/44R/92H/217R/322I, 39E/44R/92H/247D/271A/302K, 39E/47T/92H/247D/302K/316D/322I, 39E/47T/217R/247D/368A, 39E/47T/247D, 39E/92H/247D/302K/316D/337P/368A, 39E/92H/316D/322I, 39E/247D/271A, 39E/247D/271A/316D, 39E/322I, 44R/47T/92H/206A/217R/316D/322I, 44R/47T/92H/247D/261G/271A/316D/337P/368A, 44R/47T/206A/217R/247D/271A/322I, 44R/47T/247D/322I/368A, 44R/47T/302K/316D/322I, 44R/92H/206A/247D/368A, 44R/206A/337P, 44R/247D/261G/302K/316D, 44R/247D/261G/302K/316D/322I, 47T/92H/247D/271A, 47T/217R/302K, 47T/247D, 47T/247D/271A, 89I/217R/247D/261G/302K/316D, 92H/217R/271A, 92H/247D, 92H/247D/271A/322I, 92H/247D/302K/322I/337P, 92H/271A/337P, 92H/302K, 92H/316D, 206A/217R/271A/392T, 217R/247D/316D/322I/337P/368A, 247D, 247D/271A, 247D/302K, 271A, 271A/302K/322I, 271A/316D/322I, 302K/322I/368A, and 368A, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 372. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 372, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from T10P, T10P/M39E/L44R/M322I, T10P/M39E/Y92H/K206A/F217R/H271A, T10P/M39E/Y92H/N247D, T10P/M39E/Y92H/N247D/H271A/L316D, T10P/L44R, T10P/L44R/S47T/Y92H/N247D, T10P/L44R/S47T/A261G/Q302K/M322I/W368A, T10P/L44R/Y92H/L316D/M322I, T10P/L44R/A261G/Q302K/L316D, T10P/L44R/Q302K/A337P/W368A, T10P/S47T/F217R/N247D/L316D/M392T, T10P/S47T/F217R/M322I, T10P/S47T/H271A, T10P/Y92H, T10P/Y92H/K206A/F217R/N247D, T10P/Y92H/K206A/N247D/L316D/M322I/M392T, T10P/Y92H/K206A/N247D/M322I/W368A, T10P/Y92H/F217R/A261G/Q302K/A337P, T10P/K206A/F217R/H271A, T10P/K206A/N247D, T10P/K206A/A261G/H271A/L316D, T10P/A261G, T10P/H271A/Q302K, T10P/Q302K, T10P/Q302K/L316D, T10P/Q302K/M322I/A337P, T10P/L316D/M322I, T10P/A337P/M392T, T10P/W368A, M39E/L44R/Y92H/R162M/N247D/Q302K/L316D/M322I, M39E/L44R/Y92H/F217R/M322I, M39E/L44R/Y92H/N247D/H271A/Q302K, M39E/S47T/Y92H/N247D/Q302K/L316D/M322I, M39E/S47T/F217R/N247D/W368A, M39E/S47T/N247D, M39E/Y92H/N247D/Q302K/L316D/A337P/W368A, M39E/Y92H/L316D/M322I, M39E/N247D/H271A, M39E/N247D/H271A/L316D, M39E/M322I, L44R/S47T/Y92H/K206A/F217R/L316D/M322I, L44R/S47T/Y92H/N247D/A261G/H271A/L316D/A337P/W368A, L44R/S47T/K206A/F217R/N247D/H271A/M322I, L44R/S47T/N247D/M322I/W368A, L44R/S47T/Q302K/L316D/M322I, L44R/Y92H/K206A/N247D/W368A, L44R/K206A/A337P, L44R/N247D/A261G/Q302K/L316D, L44R/N247D/A261G/Q302K/L316D/M322I, S47T/Y92H/N247D/H271A, S47T/F217R/Q302K, S47T/N247D, S47T/N247D/H271A, L89I/F217R/N247D/A261G/Q302K/L316D, Y92H/F217R/H271A, Y92H/N247D, Y92H/N247D/H271A/M322I, Y92H/N247D/Q302K/M322I/A337P, Y92H/H271A/A337P, Y92H/Q302K, Y92H/L316D, K206A/F217R/H271A/M392T, F217R/N247D/L316D/M322I/A337P/W368A, N247D, N247D/H271A, N247D/Q302K, H271A, H271A/Q302K/M322I, H271A/L316D/M322I, Q302K/M322I/W368A, and W368A, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 372.

The present invention also provides recombinant alpha galactosidase A wherein said comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 374, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 10/36/92/166/247/261/316/392, 10/39, 10/39/44/47/92/206/217, 10/39/44/47/316, 10/39/44/47/337, 10/39/44/92/166/261/316/322, 10/39/44/92/166/302/322, 10/39/44/92/166/392, 10/39/44/92/217/302/322, 10/39/44/92/302/322, 10/39/44/166/261/271/316/322, 10/39/44/392, 10/39/47/92/337, 10/39/92/131/166/271/316/322, 10/39/92/166/217/247/271, 10/39/92/217/316, 10/44/47/166/261/271, 10/44/47/166/271/322/368, 10/44/47/217/271/316/322, 10/44/92, 10/44/92/217/247/271/302/316/392, 10/44/166/302, 10/44/206/316/322, 10/47/92/166/271/316/337, 10/47/92/271/302, 10/47/92/316/322/392, 10/47/166/271, 10/47/166/316, 10/92/166, 10/92/166/217/247/261/271, 10/92/166/261/271/392, 10/92/166/261/316/322/337, 10/92/166/337/368, 10/92/302/337, 10/92/316/322, 10/206, 10/206/247/261, 10/217/322, 10/261, 10/261/337/392, 10/316/392, 10/368, 39/44/47/92/166/206/392, 39/44/47/92/206/247/261, 39/44/47/92/206/392, 39/44/47/206/337/368/392, 39/44/92/166/247/261/302/337, 39/44/166/271, 39/44/166/271/337/368/392, 39/47/92/316/322, 39/47/92/392, 39/47/166/217/261/392, 39/47/217/247/368, 39/47/247, 39/92/166/217/392, 39/92/261/302, 39/166/217/261/316/368, 39/322, 39/392, 44/47, 44/47/92/217/271, 44/47/92/217/316/322/392, 44/47/92/392, 44/47/166, 44/47/166/271, 44/47/247/271/392, 44/316/322/392, 44/337, 47/166/206/217/247/337, 47/166/217/271/337, 47/206, 47/217/247/261, 47/271, 52/217/302/316, 92/166/206/271/316, 92/166/217/261/271/392, 92/166/217/316/337/392, 92/166/247, 92/166/316, 92/206/322, 92/217, 92/217/271/337, 92/261/271, 92/271, 166/217/316/322/337, 166/247/271/316, 166/316/322/337, 206/217, 217/392, 247/316, 316/322/368, and 316/337/392, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 374. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 374, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from 10T/36M/92Y/166S/247N/261A/316L/392M, 10T/39M, 10T/39M/44L/47S/92Y/206K/217F, 10T/39M/44L/47S/316L, 10T/39M/44L/47S/337A, 10T/39M/44L/92Y/166S/261A/316L/322M, 10T/39M/44L/92Y/166S/302Q/322M, 10T/39M/44L/92Y/166S/392M, 10T/39M/44L/92Y/217F/302Q/322M, 10T/39M/44L/92Y/302Q/322M, 10T/39M/44L/166S/261A/271H/316L/322M, 10T/39M/44L/392M, 10T/39M/47S/92Y/337A, 10T/39M/92Y/131G/166S/271H/316L/322M, 10T/39M/92Y/166S/217F/247N/271H, 10T/39M/92Y/217F/316L, 10T/44L/47S/166S/261A/271H, 10T/44L/47S/166S/271H/322M/368W, 10T/44L/47S/217F/271H/316L/322M, 10T/44L/92Y, 10T/44L/92Y/217F/247N/271H/302Q/316L/392M, 10T/44L/166S/302Q, 10T/44L/206K/316L/322M, 10T/47S/92Y/166S/271H/316L/337A, 10T/47S/92Y/271H/302Q, 10T/47S/92Y/316L/322M/392M, 10T/47S/166S/271H, 10T/47S/166S/316L, 10T/92Y/166S, 10T/92Y/166S/217F/247N/261A/271H, 10T/92Y/166S/261A/271H/392M, 10T/92Y/166S/261A/316L/322M/337A, 10T/92Y/166S/337A/368W, 10T/92Y/302Q/337A, 10T/92Y/316L/322M, 10T/206K, 10T/206K/247N/261A, 10T/217F/322M, 10T/261A, 10T/261A/337A/392M, 10T/316L/392M, 10T/368W, 39M/44L/47S/92Y/166S/206K/392M, 39M/44L/47S/92Y/206K/247N/261A, 39M/44L/47S/92Y/206K/392M, 39M/44L/47S/206K/337A/368W/392M, 39M/44L/92Y/166S/247N/261A/302Q/337A, 39M/44L/166S/271H, 39M/44L/166S/271H/337A/368W/392M, 39M/47S/92Y/316L/322M, 39M/47S/92Y/392M, 39M/47S/166S/217F/261A/392M, 39M/47S/217F/247N/368W, 39M/47S/247N, 39M/92Y/166S/217F/392M, 39M/92Y/261A/302Q, 39M/166S/217F/261A/316L/368W, 39M/322M, 39M/392M, 44L/47S, 44L/47S/92Y/217F/271H, 44L/47S/92Y/217F/316L/322M/392M, 44L/47S/92Y/392M, 44L/47S/166S, 44L/47S/166S/271H, 44L/47S/247N/271H/392M, 44L/316L/322M/392M, 44L/337A, 47S/166S/206K/217F/247N/337A, 47S/166S/217F/271H/337A, 47S/206K, 47S/217F/247N/261A, 47S/271H, 52N/217F/302Q/316L, 92Y/166S/206K/271H/316L, 92Y/166S/217F/261A/271H/392M, 92Y/166S/217F/316L/337A/392M, 92Y/166S/247N, 92Y/166S/316L, 92Y/206K/322M, 92Y/217F, 92Y/217F/271H/337A, 92Y/261A/271H, 92Y/271H, 166S/217F/316L/322M/337A, 166S/247N/271H/316L, 166S/316L/322M/337A, 206K/217F, 217F/392M, 247N/316L, 316L/322M/368W, and 316L/337A/392M, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 374. In some embodiments, the recombinant alpha galactosidase A comprises a polypeptide sequence having at least 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO: 374, or a functional fragment thereof, and wherein said recombinant alpha galactosidase A comprises at least one substitution or substitution set at one or more positions selected from P10T/K36M/H92Y/P166S/D247N/G261A/D316L/T392M, P10T/E39M, P10T/E39M/R44L/T47S/H92Y/A206K/R217F, P10T/E39M/R44L/T47S/D316L, P10T/E39M/R44L/T47S/P337A, P10T/E39M/R44L/H92Y/P166S/G261A/D316L/I322M, P10T/E39M/R44L/H92Y/P166S/K302Q/I322M, P10T/E39M/R44L/H92Y/P166S/T392M, P10T/E39M/R44L/H92Y/R217F/K302Q/I322M, P10T/E39M/R44L/H92Y/K302Q/I322M, P10T/E39M/R44L/P166S/G261A/A271H/D316L/I322M, P10T/E39M/R44L/T392M, P10T/E39M/T47S/H92Y/P337A, P10T/E39M/H92Y/W131G/P166S/A271H/D316L/I322M, P10T/E39M/H92Y/P166S/R217F/D247N/A271H, P10T/E39M/H92Y/R217F/D316L, P10T/R44L/T47S/P166S/G261A/A271H, P10T/R44L/T47S/P166S/A271H/I322M/A368W, P10T/R44L/T47S/R217F/A271H/D316L/I322M, P10T/R44L/H92Y, P10T/R44L/H92Y/R217F/D247N/A271H/K302Q/D316L/T392M, P10T/R44L/P166S/K302Q, P10T/R44L/A206K/D316L/I322M, P10T/T47S/H92Y/P166S/A271H/D316L/P337A, P10T/T47S/H92Y/A271H/K302Q, P10T/T47S/H92Y/D316L/I322M/T392M, P10T/T47S/P166S/A271H, P10T/T47S/P166S/D316L, P10T/H92Y/P166S, P10T/H92Y/P166S/R217F/D247N/G261A/A271H, P10T/H92Y/P166S/G261A/A271H/T392M, P10T/H92Y/P166S/G261A/D316L/I322M/P337A, P10T/H92Y/P166S/P337A/A368W, P10T/H92Y/K302Q/P337A, P10T/H92Y/D316L/I322M, P10T/A206K, P10T/A206K/D247N/G261A, P10T/R217F/I322M, P10T/G261A, P10T/G261A/P337A/T392M, P10T/D316L/T392M, P10T/A368W, E39M/R44L/T47S/H92Y/P166S/A206K/T392M, E39M/R44L/T47S/H92Y/A206K/D247N/G261A, E39M/R44L/T47S/H92Y/A206K/T392M, E39M/R44L/T47S/A206K/P337A/A368W/T392M, E39M/R44L/H92Y/P166S/D247N/G261A/K302Q/P337A, E39M/R44L/P166S/A271H, E39M/R44L/P166S/A271H/P337A/A368W/T392M, E39M/T47S/H92Y/D316L/I322M, E39M/T47S/H92Y/T392M, E39M/T47S/P166S/R217F/G261A/T392M, E39M/T47S/R217F/D247N/A368W, E39M/T47S/D247N, E39M/H92Y/P166S/R217F/T392M, E39M/H92Y/G261A/K302Q, E39M/P166S/R217F/G261A/D316L/A368W, E39M/I322M, E39M/T392M, R44L/T47S, R44L/T47S/H92Y/R217F/A271H, R44L/T47S/H92Y/R217F/D316L/I322M/T392M, R44L/T47S/H92Y/T392M, R44L/T47S/P166S, R44L/T47S/P166S/A271H, R44L/T47S/D247N/A271H/T392M, R44L/D316L/I322M/T392M, R44L/P337A, T47 S/P166S/A206K/R217F/D247N/P337A, T47 S/P166S/R217F/A271H/P337A, T47S/A206K, T47S/R217F/D247N/G261A, T47S/A271H, D52N/R217F/K302Q/D316L, H92Y/P166S/A206K/A271H/D316L, H92Y/P166S/R217F/G261A/A271H/T392M, H92Y/P166S/R217F/D316L/P337A/T392M, H92Y/P166S/D247N, H92Y/P166S/D316L, H92Y/A206K/I322M, H92Y/R217F, H92Y/R217F/A271H/P337A, H92Y/G261A/A271H, H92Y/A271H, P166S/R217F/D316L/I322M/P337A, P166S/D247N/A271H/D316L, P166S/D316L/I322M/P337A, A206K/R217F, R217F/T392M, D247N/D316L, D316L/I322M/A368W, and D316L/P337A/T392M, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 374.

In some embodiments, the alpha galactosidase A of the present invention comprises at least one mutation in at least one position as provided in Table 2-1, 5-1, 6-1, 7-1, 8-1, and/or 9-1, wherein the positions are numbered with reference to SEQ ID NO: 2. In some additional embodiments, the recombinant alpha galactosidase A is derived from a human alpha galactosidase A. In some further embodiments, the recombinant alpha galactosidase A comprises the polypeptide sequence of SEQ ID NO: 8, 58, 158, 372, and/or 374.

In some embodiments, the recombinant alpha galactosidase A is more thermostable than the alpha galactosidase A of SEQ ID NO: 2, 8, 58, 158, 372, and/or 374. In some additional embodiments, the recombinant alpha galactosidase A is more stable at pH 7 than the alpha galactosidase A of SEQ ID NO: 2, 8, 58, 158, 372, and/or 374. In yet some additional embodiments, the recombinant alpha galactosidase A is more stable at pH 4 than the alpha galactosidase A of SEQ ID NO: 2, 8, 58, 158, 372, and/or 374. In still some further embodiments, the recombinant alpha galactosidase A is more stable at pH 7 and more stable at pH 4 than the alpha galactosidase A of SEQ ID NO: 2, 8, 58, 158, 372, and/or 374. In still additional embodiments, the recombinant alpha galactosidase A is more stable to exposure to serum than the alpha galactosidase A of SEQ ID NO: 2, 8, 58, 158, 372, and/or 374. In some further embodiments, the recombinant alpha galactosidase A is more lysosomally stable than the alpha galactosidase A of SEQ ID NO:2, 8, 58, 158, 372, and/or 374. In yet some additional embodiments, the recombinant alpha galactosidase A is more readily taken up by cells than the alpha galactosidase A of SEQ ID NO: 2, 8, 58, 158, 372, and/or 374. In some further embodiments, the recombinant alpha galactosidase A depletes more globotriaosylceramide from cells than the alpha galactosidase A of SEQ ID NO: 2, 8, 58, 158, 372, and/or 374. In yet some additional embodiments, the recombinant alpha galactosidase A exhibits improved uptake into cells, as compared to SEQ ID NO: 2, 8, 58, 158, 372, and/or 374. In some further embodiments, the recombinant alpha galactosidase A is less immunogenic than the alpha galactosidase A of SEQ ID NO: 2, 8, 58, 158, 372, and/or 374. In some further embodiments, the recombinant alpha galactosidase A exhibits at least one improved property selected from: i) enhanced catalytic activity; ii) increased tolerance to pH 7; iii) increased tolerance to pH 4; iv) increased tolerance to serum; v) improved uptake into cells; vi) reduced immunogenicity; or vii) increased depletion of globotriaosylceramide from cells; or a combination of any of i), ii), iii), iv), v), vi) or vii), as compared to a reference sequence. In some embodiments, the reference sequence is SEQ ID NO: 2, 8, 58, 158, 372, and/or 374. In some further embodiments, the recombinant alpha galactosidase A is purified.

The present invention also provides recombinant polynucleotide sequences encoding at least one recombinant alpha galactosidase A as provided herein (e.g., in Table 2-1, 5-1, 6-1, 7-1, 8-1, and/or 9-1). In some embodiments, the polynucleotide sequence is selected from DNA, RNA, and mRNA.

In some embodiments, the recombinant polynucleotide sequence is codon-optimized.

The present invention also provides expression vectors comprising the recombinant polynucleotide sequence encoding at least one recombinant alpha galactosidase A as provided herein (e.g., Table 2-1, 5-1, 6-1, 7-1, 8-1, and/or 9-1). In some embodiments, the recombinant polynucleotide sequence is operably linked to a control sequence. In some additional embodiments, the control sequence is a promoter. In some further embodiments, the promoter is a heterologous promoter. In some embodiments, the expression vector further comprises a signal sequence, as provided herein.

The present invention also provides host cells comprising at least one expression vector as provided herein. In some embodiments, the host cell comprises an expression vector comprising the recombinant polynucleotide sequence encoding at least one recombinant alpha galactosidase A as provided herein (e.g., Table 2-1, 5-1, 6-1, 7-1, 8-1, and/or 9-1). In some embodiments, the host cell is selected from eukaryotes and prokaryotes. In some embodiments, the host cell is eukaryotic. In some additional embodiments, the host cell is a mammalian cell.

The present invention also provides methods of producing an alpha galactosidase A variant, comprising culturing a host cell provided herein, under conditions that the alpha galactosidase A encoded by the recombinant polynucleotide is produced. In some embodiments, the methods further comprise the step of recovering alpha galactosidase A. In some further embodiments, the methods further comprise the step of purifying the alpha galactosidase A. The present invention also provides compositions comprising at least one recombinant alpha galactosidase A as provided herein (e.g., Table 2-1, 5-1, 6-1, 7-1, 8-1, and/or 9-1). In some embodiments, the present invention provides pharmaceutical compositions. In some embodiments, the present invention provides pharmaceutical compositions comprising at least one recombinant polynucleotide provided herein. In some additional embodiments, the present invention provides pharmaceutical compositions for the treatment of Fabry disease, comprising an enzyme composition provided herein. In some embodiments, the pharmaceutical compositions, further comprise a pharmaceutically acceptable carrier and/or excipient. In some additional embodiments, the pharmaceutical composition is suitable for parenteral injection or infusion to a human.

The present invention also provides methods for treating and/or preventing the symptoms of Fabry disease in a subject, comprising providing a subject having Fabry disease, and providing at least one pharmaceutical composition compositions comprising at least one recombinant alpha galactosidase A as provided herein (e.g., Table 2-1, 5-1, 6-1, 7-1, 8-1, and/or 9-1), and administering the pharmaceutical composition to the subject. In some embodiments, the symptoms of Fabry disease are ameliorated in the subject. In some additional embodiments, the subject to whom the pharmaceutical composition of the present invention has been administered is able to eat a diet that is less restricted in its fat content than diets required by subjects exhibiting the symptoms of Fabry disease. In some embodiments, the subject is an infant or child, while in some alternative embodiments, the subject is an adult or young adult.

The present invention also provides for the use of the compositions provided herein.

