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pptr-1

Gene
pptr-1
Protein
Serine/threonine-protein phosphatase 2A regulatory subunit pptr-1
Organism
Caenorhabditis elegans
Length
542 amino acids
Function
Probable regulatory subunit of serine/threonine-protein phosphatase let-92 which negatively regulates the insulin receptor signaling cascade composed of daf-2, age-1, akt-1, akt-2 and sgk-1 by promoting the dephosphorylation of akt-1 on 'Thr-350' (PubMed:19249087). Negatively regulates several functions controlled by the insulin pathway including dauer formation, lifespan, fat storage and stress resistance (PubMed:19249087). Plays a role in the asymmetric segregation of the P granule components during embryonic cell divisions but does not play an essential role in specifying germ cell fate (PubMed:21127218). In adults, required to promote germ cell proliferation and differentiation when exposed to thermic stress (PubMed:21127218).
Similarity
Belongs to the phosphatase 2A regulatory subunit B56 family.
Mass
61.835 kDa
Sequence
MHGSGHSLTGAPHQIPPPRTQGAATGGQQLSATANQFVDKIDPFHNKRGTSRRLRINNSSRYNVDSAQELVQLALIKDTAANEQPALVIEKLVQCQHVFDFYDPVAQLKCKEIKRAALNELIDHITSTKGAIVETIYPAVIKMVAKNIFRVLPPSENCEFDPEEDEPTLEVSWPHLQLVYELFLRFLESPDFQASIGKKYIDQRFVLKLLDLFDSEDPRERDFLKTVLHRIYGKFLGLRAFIRKHINNMFLRFVYETDSFNGVGELLEILGSIINGFALPLKQEHKVFLVKVLLPLHKPKCLSLYHAQLAYCVVQFIEKDSSLTPQVFEALLKFWPRTCSSKEVMFLGEVEEILDIIEPEQFKKIIDPLFRQLAKCVSSPHFQVAERALYFWNNEYILSLIEDTSSLVMPIMFPALYRISKEHWNQTIVALVYNVLKTFMEMNGKLFDELTSTYKGERLREKQREKDRDAFWKKMEALELNPPAEGKEVTPSLFPEKLTDYLKKDGPNMTPLPVATAGGGDKSPSVVKKSSTGSETTTPAKK