| Primary Identifier | IPR041753 | Type | Domain |
| Short Name | PP5_C |
| description | Serine/threonine protein phosphatase-5 (PP5) is a member of the PPP gene family of protein phosphatases that is highly conserved among eukaryotes and widely expressed in mammalian tissues. PP5 has a C-terminal phosphatase domain and an extended N-terminal TPR (tetratricopeptide repeat) domain containing three TPR motifs [, , , , ]. This entry represents the C-terminal phosphatase domain. Proteins containing this domain also include yeast Ppt1, which is a serine/threonine phosphatase that regulates Hsp90 chaperone by affecting its ATPase and cochaperone binding activitie []. The PPP (phosphoprotein phosphatase) family is one of two known protein phosphatase families specific for serine and threonine. The PPP family also includes: PP1, PP2A, PP2B (calcineurin), PP4, PP6, PP7, Bsu1, RdgC, PrpE, PrpA/PrpB, and ApA4 hydrolase. The PPP catalytic domain is defined by three conserved motifs (-GDXHG-, -GDXVDRG- and -GNHE-). The PPP enzyme family is ancient with members found in all eukaryotes, and in most bacterial and archeal genomes. Dephosphorylation of phosphoserines and phosphothreonines on target proteins plays a central role in the regulation of manycellular processes [, ]. PPPs belong to the metallophosphatase (MPP) superfamily. |
