Protein
Phosphatidylinositol:ceramide inositolphosphotransferase 2
Organism
Arabidopsis thaliana
Function
Catalyzes the transfer of the phosphorylinositol group from phosphatidylinositol (PI) to phytoceramide, an essential step in sphingolipid biosynthesis. May play an important role in modulating plant programmed cell death (PCD) associated with defense (e.g. toward Golovinomyces cichoracearum) by promoting sphingolipid metabolism and thus regulating ceramide accumulation.
Similarity
Belongs to the sphingomyelin synthase family.
Sequence
MTLYIRRESSKLWKRFCSEISTEIGLLAENWKYLLAGLICQYIHGLAAKGVHYIHRPGPTLQDLGFFLLPELGQERSYISETVFTSVFLSFFLWTFHPFILKTKKIYTVLIWCRVLAFLVACQFLRVITFYSTQLPGPNYHCREGSKVSRLPWPKSALEVLEINPHGVMYGCGDLIFSSHMIFTLVFVRTYQKYGTKRFIKLFGWLTAIVQSLLIIASRKHYSVDVVVAWYTVNLVVFCLDKKLPELPDRTAVLLPVISKDRTKEENHKLLNGNGVDPADWRPRAQVNGKIDSNGVHTDNTMNGA