ID  F4HXY7;
PN  CDP-diacylglycerol--serine O-phosphatidyltransferase 1;
GN  PSS1;
OS  3702;
SL  Nucleus Position: SL-0178;
SL  Comments: Endoplasmic reticulum membrane {ECO:0000269|PubMed:21554450}; Multi-pass membrane protein {ECO:0000269|PubMed:21554450}. Nucleus envelope {ECO:0000269|PubMed:21554450}. Note=Mainly localized in nuclei and ER membranes during pollen development.
DR  UNIPROT: F4HXY7;
DR  UNIPROT: Q9XI59;
DR  Pfam: PF03034;
DE  Function: Catalyzes a base-exchange reaction in which the polar head group of phosphatidylethanolamine (PE) or phosphatidylcholine (PC) is replaced by L-serine. Is essential for phosphatidylserine (PS) biosynthesis and PE seems to be the most plausible substrate. Plays an important role in microspore maturation. {ECO:0000269|PubMed:21554450}.
DE  Reference Proteome: Yes;
GO  GO:0005789;
GO  GO:0016021;
GO  GO:0031965;
GO  GO:0003882;
GO  GO:0106245;
GO  GO:0009556;
GO  GO:0006646;
GO  GO:0006659;
TP  Membrane Topology: Transmembrane; Source: UniProt - Sequence Analysis {ECO:0000255};
SQ  MEPNGYRKERRKEQHLGRMNGGGGDVETDLDPWTAWAYKPRTISLLLIGACFLIWASGALDPDSTTSDDLVTSVKRGVWA
SQ  MIAVFLAYSLLQAPSTVLIRPHPAIWRLVHGMAVIYLVALTFLLFQRRDDARQFMKFLHPDLGIELPEKSYGADCRIYVP
SQ  DHPTNRFKNLYDTVFDEFFLAHIFGWWGKAILIRNQPLLWVLSIGFELLEVTFRHMLPNFNECWWDSIVLDILICNWFGI
SQ  WAGMYTVRYFDGKTYEWVGISRQPNIIGKVKRTLGQFTPAHWDKDEWHPLQGPWRFIQVLTLCIIFLTVELNTFFLKFSL
SQ  WIPPRNPVILYRLILWWLIAIPTTREYNSYLQDRKPVKKVGAFCWLSLGICIVELLICIKFGSGLYPTEMPLWVVTLWGS
SQ  VGLGLVAFLLSWTWKIQKILAQKRR
//