ID 2.7.8.29 DE L-serine-phosphatidylethanolamine phosphatidyltransferase. AN phosphatidylserine synthase 2. CA a 1,2-diacyl-sn-glycero-3-phosphoethanolamine + L-serine = a 1,2-diacyl- CA sn-glycero-3-phospho-L-serine + ethanolamine. CC -!- This mammalian enzyme catalyzes an exchange reaction in which the CC polar head group of phosphatidylethanolamine is replaced by L-serine. DR F4HXY7, PSS1_ARATH ; Q2KHY9, PTSS1_BOVIN; Q5ZM65, PTSS1_CHICK; DR Q00576, PTSS1_CRIGR; Q803C9, PTSS1_DANRE; P48651, PTSS1_HUMAN; DR Q99LH2, PTSS1_MOUSE; Q5PQL5, PTSS1_RAT ; B1H3H9, PTSS1_XENTR; DR E1BYA3, PTSS2_CHICK; O08888, PTSS2_CRIGR; E7EY42, PTSS2_DANRE; DR Q9BVG9, PTSS2_HUMAN; Q9Z1X2, PTSS2_MOUSE; B2GV22, PTSS2_RAT ; DR Q08D11, PTSS2_XENTR; Q9VPD3, PTSS_DROME ; //