(data stored in ACNUC7421 zone)

SWISSPROT: PSD_PSEPF

ID   PSD_PSEPF               Reviewed;         286 AA.
AC   Q3KJ03;
DT   28-NOV-2006, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 1.
DT   11-DEC-2019, entry version 87.
DE   RecName: Full=Phosphatidylserine decarboxylase proenzyme {ECO:0000255|HAMAP-Rule:MF_00662};
DE            EC=4.1.1.65 {ECO:0000255|HAMAP-Rule:MF_00662};
DE   Contains:
DE     RecName: Full=Phosphatidylserine decarboxylase alpha chain {ECO:0000255|HAMAP-Rule:MF_00662};
DE   Contains:
DE     RecName: Full=Phosphatidylserine decarboxylase beta chain {ECO:0000255|HAMAP-Rule:MF_00662};
GN   Name=psd {ECO:0000255|HAMAP-Rule:MF_00662}; OrderedLocusNames=Pfl01_0509;
OS   Pseudomonas fluorescens (strain Pf0-1).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=205922;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Pf0-1;
RX   PubMed=19432983; DOI=10.1186/gb-2009-10-5-r51;
RA   Silby M.W., Cerdeno-Tarraga A.M., Vernikos G.S., Giddens S.R.,
RA   Jackson R.W., Preston G.M., Zhang X.-X., Moon C.D., Gehrig S.M.,
RA   Godfrey S.A.C., Knight C.G., Malone J.G., Robinson Z., Spiers A.J.,
RA   Harris S., Challis G.L., Yaxley A.M., Harris D., Seeger K., Murphy L.,
RA   Rutter S., Squares R., Quail M.A., Saunders E., Mavromatis K.,
RA   Brettin T.S., Bentley S.D., Hothersall J., Stephens E., Thomas C.M.,
RA   Parkhill J., Levy S.B., Rainey P.B., Thomson N.R.;
RT   "Genomic and genetic analyses of diversity and plant interactions of
RT   Pseudomonas fluorescens.";
RL   Genome Biol. 10:R51.1-R51.16(2009).
CC   -!- FUNCTION: Catalyzes the formation of phosphatidylethanolamine (PtdEtn)
CC       from phosphatidylserine (PtdSer). {ECO:0000255|HAMAP-Rule:MF_00662}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=1,2-diacyl-sn-glycero-3-phospho-L-serine + H(+) = a 1,2-
CC         diacyl-sn-glycero-3-phosphoethanolamine + CO2; Xref=Rhea:RHEA:20828,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:57262,
CC         ChEBI:CHEBI:64612; EC=4.1.1.65; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00662};
CC   -!- COFACTOR:
CC       Name=pyruvate; Xref=ChEBI:CHEBI:15361;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00662};
CC       Note=Binds 1 pyruvoyl group covalently per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_00662};
CC   -!- PATHWAY: Phospholipid metabolism; phosphatidylethanolamine
CC       biosynthesis; phosphatidylethanolamine from CDP-diacylglycerol: step
CC       2/2. {ECO:0000255|HAMAP-Rule:MF_00662}.
CC   -!- SUBUNIT: Heterodimer of a large membrane-associated beta subunit and a
CC       small pyruvoyl-containing alpha subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_00662}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_00662};
CC       Peripheral membrane protein {ECO:0000255|HAMAP-Rule:MF_00662}.
CC   -!- PTM: Is synthesized initially as an inactive proenzyme. Formation of
CC       the active enzyme involves a self-maturation process in which the
CC       active site pyruvoyl group is generated from an internal serine residue
CC       via an autocatalytic post-translational modification. Two non-identical
CC       subunits are generated from the proenzyme in this reaction, and the
CC       pyruvate is formed at the N-terminus of the alpha chain, which is
CC       derived from the carboxyl end of the proenzyme. The autoendoproteolytic
CC       cleavage occurs by a canonical serine protease mechanism, in which the
CC       side chain hydroxyl group of the serine supplies its oxygen atom to
CC       form the C-terminus of the beta chain, while the remainder of the
CC       serine residue undergoes an oxidative deamination to produce ammonia
CC       and the pyruvoyl prosthetic group on the alpha chain. During this
CC       reaction, the Ser that is part of the protease active site of the
CC       proenzyme becomes the pyruvoyl prosthetic group, which constitutes an
CC       essential element of the active site of the mature decarboxylase.
CC       {ECO:0000255|HAMAP-Rule:MF_00662}.
CC   -!- SIMILARITY: Belongs to the phosphatidylserine decarboxylase family.
CC       PSD-B subfamily. Prokaryotic type I sub-subfamily. {ECO:0000255|HAMAP-
CC       Rule:MF_00662}.
DR   EMBL; CP000094; ABA72253.1; -; Genomic_DNA.
DR   RefSeq; WP_011332172.1; NC_007492.2.
DR   STRING; 205922.Pfl01_0509; -.
DR   PRIDE; Q3KJ03; -.
DR   EnsemblBacteria; ABA72253; ABA72253; Pfl01_0509.
DR   KEGG; pfo:Pfl01_0509; -.
DR   eggNOG; ENOG4105DJ4; Bacteria.
DR   eggNOG; COG0688; LUCA.
DR   HOGENOM; HOG000282407; -.
DR   KO; K01613; -.
DR   OMA; GSMATVW; -.
DR   BioCyc; PFLU205922:G1G4S-514-MONOMER; -.
DR   UniPathway; UPA00558; UER00616.
DR   Proteomes; UP000002704; Chromosome.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0004609; F:phosphatidylserine decarboxylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006646; P:phosphatidylethanolamine biosynthetic process; IEA:UniProtKB-UniPathway.
DR   HAMAP; MF_00662; PS_decarb_PSD_B_type1; 1.
DR   InterPro; IPR003817; PS_Dcarbxylase.
DR   InterPro; IPR033177; PSD.
DR   InterPro; IPR033178; PSD_type1_pro.
DR   PANTHER; PTHR10067; PTHR10067; 1.
DR   Pfam; PF02666; PS_Dcarbxylase; 1.
DR   TIGRFAMs; TIGR00163; PS_decarb; 1.
PE   3: Inferred from homology;
DR   PRODOM; Q3KJ03.
DR   SWISS-2DPAGE; Q3KJ03.
KW   Cell membrane; Decarboxylase; Lipid biosynthesis; Lipid metabolism; Lyase;
KW   Membrane; Phospholipid biosynthesis; Phospholipid metabolism; Pyruvate;
KW   Zymogen.
FT   CHAIN           1..251
FT                   /note="Phosphatidylserine decarboxylase beta chain"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00662"
FT                   /id="PRO_0000262139"
FT   CHAIN           252..286
FT                   /note="Phosphatidylserine decarboxylase alpha chain"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00662"
FT                   /id="PRO_0000262140"
FT   ACT_SITE        90
FT                   /note="Charge relay system; for autoendoproteolytic
FT                   cleavage activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00662"
FT   ACT_SITE        147
FT                   /note="Charge relay system; for autoendoproteolytic
FT                   cleavage activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00662"
FT   ACT_SITE        252
FT                   /note="Charge relay system; for autoendoproteolytic
FT                   cleavage activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00662"
FT   ACT_SITE        252
FT                   /note="Schiff-base intermediate with substrate; via pyruvic
FT                   acid; for decarboxylase activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00662"
FT   SITE            251..252
FT                   /note="Cleavage (non-hydrolytic); by autocatalysis"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00662"
FT   MOD_RES         252
FT                   /note="Pyruvic acid (Ser); by autocatalysis"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00662"
SQ   SEQUENCE   286 AA;  31590 MW;  0F0BA6943B98D142 CRC64;
     MKERLFIISQ YLLPHHLLSR LAGCIAECRV RWFKNAFTTW FAKRYQVDMS QALVEDVTAY
     EHFNAFFTRA LKDGARPLDQ TPGAILSPAD GAISQLGPIE HGRIFQAKGH SFSVLELLGG
     DAANAAPFMG GEFATVYLSP KDYHRVHMPL AGTLREMVYI PGRIFSVNQT TAENVPELFA
     RNERVACIFD TERGPMAVVL VGAMIVASIE TVWAGLVTPP KRELKTFRYD EAARAPIHLE
     KGAELGRFKL GSTAIVLFGP DQVKWVEELK AGSPVQMGQA LAQSNA
//

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