Protein
Creatine kinase, testis isozyme
Organism
Oncorhynchus mykiss
Function
Reversibly catalyzes the transfer of phosphate between ATP and various phosphogens (e.g. creatine phosphate). Creatine kinase isoenzymes play a central role in energy transduction in tissues with large, fluctuating energy demands, such as skeletal muscle, heart, brain and spermatozoa.
Similarity
Belongs to the ATP:guanido phosphotransferase family.
Sequence
MEKINDKMAKLTIKRLSPEEEFPDLSQHNNHMAKVLTQDMYTKLRDRATPNGFTIDGVIQTGIDNPGHPFIMTVGCVAGDEETYEVFKELLDPIIEDRHGGYKPTDKHKTDLNPDNLKGGDDLDPNYVISSRVRTGRSIRGFCLPPHCSRGERRGVEKMSVEALDSLSGDLKGKYYALKNMTDAEQQQLIDDHFLFDKPVSPLLLASGMARDWPDGRGIWHNDTKTFLVWVNEEDHLRVISMQKGGNMKEVFNRFCTGLTKIETLFKDKGTSFMWNEHLGYVLTCPSNLGTGLRAGVHVKIPNISKHAKFEEVLKRLRLQKRGTGGVDTAAVGGTFDISNADRLGFSEVELVQMVVDGVKLLVEMEKKLEKGQSIDDLMPAQK