Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
Function
Catalyzes the hydrolysis of phosphoanhydride bonds of nucleoside tri- and di-phosphates. Has equal high activity toward ADP/ATP, GDP/GTP, and UDP/UTP and approximately 50% less toward CDP/CTP and thiamine pyrophosphate. Has no activity toward GMP. Required for Golgi glycosylation and cell wall integrity. Together with CDC55, required for adenovirus E4orf4 (early region 4 open reading frame 4) induced toxicity, the apyrase activity is not required for this function. Plays a role in sphingolipid synthesis.
Similarity
Belongs to the GDA1/CD39 NTPase family.
Sequence
MLIENTNDRFGIVIDAGSSGSRIHVFKWQDTESLLHATNQDSQSILQSVPHIHQEKDWTFKLNPGLSSFEKKPQDAYKSHIKPLLDFAKNIIPESHWSSCPVFIQATAGMRLLPQDIQSSILDGLCQGLKHPAEFLVEDCSAQIQVIDGETEGLYGWLGLNYLYGHFNDYNPEVSDHFTFGFMDMGGASTQIAFAPHDSGEIARHRDDIATIFLRSVNGDLQKWDVFVSTWLGFGANQARRRYLAQLINTLPENTNDYENDDFSTRNLNDPCMPRGSSTDFEFKDTIFHIAGSGNYEQCTKSIYPLLLKNMPCDDEPCLFNGVHAPRIDFANDKFIGTSEYWYTANDVFKLGGEYNFDKFSKSLREFCNSNWTQILANSDKGVYNSIPENFLKDACFKGNWVLNILHEGFDMPRIDVDAENVNDRPLFQSVEKVEERELSWTLGRILLYASGSILAGNDDFMVGIAPSERRTKLTGKKFIPGKLLESDQLRKQSSSLSNKGFLMWFAIICCIFYLIFHRSHIIRRRFSGLYNITKDFKTGIRRRLKFLRRSDPFSRLEEGELGTDVDGFKDVYRMKSSSMFDLGKSSATMQREHEPQRTASQSANLAPSNLRPAFSMADFSKFKDSRLYD