Abstract
Rat liver phosphoribosylpyrophosphate synthetase is a complex aggregate of 34-kDa catalytic subunits (PRS I and II) and 39- and 41-kDa associated proteins (PAP39 and 41). When the rat cDNA encoding PAP41 was isolated, the deduced protein sequence was seen to contain 369 amino acids with a calculated molecular mass of 41 130. PAP41 has a 79 and 49% identity with PAP39 and PRSs, respectively. When conservative substitutions are included, PAP41 and the three other components have a 66% homology. PAP41 shares some common features with PAP39 and the two proteins form the PAP subfamily. The mRNA of PAP41 is present in all rat tissues we examined.
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Schedule a callMore From: Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression
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