the reca protein has alanine and phenylalanine as its nh2- and cooh-terminal amino acids , respectively , and has the following amino acid composition : cys3 asp20 asn15 met9 thr17 ser20 glu30 gln13 pro10 gly35 ala38 val22 ile27 leu31 tyr7 phe10 his2lys27 trp2 arg14 .
C0001898
alanine
C0002520
amino acid