the primary amino acid sequence within a stretch of 25 residues ( positions 91-116 ) of the middle portion of the 3'-orf protein ( p27 ( 3 ' ) -orf ) of the human immunodeficiency virus ( hiv ) shares structural homology with a highly charged region within the intracytoplasmic phosphorylation domain of human interleukin-2 receptor ( il-2r ) and the atp-binding site of the catalytic subunit of camp-dependent protein kinase ( camp-pk ) and other members of the protein kinase family .
C0031715
phosphorylation
C0033640
protein kinase