ID E4TR62_MARTH Unreviewed; 220 AA.
AC E4TR62;
DT 08-FEB-2011, integrated into UniProtKB/TrEMBL.
DT 08-FEB-2011, sequence version 1.
DT 27-MAR-2024, entry version 75.
DE RecName: Full=Phosphatidylserine decarboxylase proenzyme {ECO:0000256|HAMAP-Rule:MF_00664};
DE EC=4.1.1.65 {ECO:0000256|HAMAP-Rule:MF_00664};
DE Contains:
DE RecName: Full=Phosphatidylserine decarboxylase alpha chain {ECO:0000256|HAMAP-Rule:MF_00664};
DE Contains:
DE RecName: Full=Phosphatidylserine decarboxylase beta chain {ECO:0000256|HAMAP-Rule:MF_00664};
GN Name=psd {ECO:0000256|HAMAP-Rule:MF_00664};
GN OrderedLocusNames=Ftrac_2765 {ECO:0000313|EMBL:ADR22743.1};
OS Marivirga tractuosa (strain ATCC 23168 / DSM 4126 / NBRC 15989 / NCIMB 1408
OS / VKM B-1430 / H-43) (Microscilla tractuosa) (Flexibacter tractuosus).
OC Bacteria; Bacteroidota; Cytophagia; Cytophagales; Marivirgaceae; Marivirga.
OX NCBI_TaxID=643867 {ECO:0000313|EMBL:ADR22743.1, ECO:0000313|Proteomes:UP000008720};
RN [1] {ECO:0000313|EMBL:ADR22743.1, ECO:0000313|Proteomes:UP000008720}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 23168 / DSM 4126 / NBRC 15989 / NCIMB 1408 / VKM B-1430 /
RC H-43 {ECO:0000313|Proteomes:UP000008720};
RX PubMed=21677852; DOI=10.4056/sigs.1623941;
RA Pagani I., Chertkov O., Lapidus A., Lucas S., Del Rio T.G., Tice H.,
RA Copeland A., Cheng J.F., Nolan M., Saunders E., Pitluck S., Held B.,
RA Goodwin L., Liolios K., Ovchinikova G., Ivanova N., Mavromatis K., Pati A.,
RA Chen A., Palaniappan K., Land M., Hauser L., Jeffries C.D., Detter J.C.,
RA Han C., Tapia R., Ngatchou-Djao O.D., Rohde M., Goker M., Spring S.,
RA Sikorski J., Woyke T., Bristow J., Eisen J.A., Markowitz V., Hugenholtz P.,
RA Klenk H.P., Kyrpides N.C.;
RT "Complete genome sequence of Marivirga tractuosa type strain (H-43).";
RL Stand. Genomic Sci. 4:154-162(2011).
CC -!- FUNCTION: Catalyzes the formation of phosphatidylethanolamine (PtdEtn)
CC from phosphatidylserine (PtdSer). {ECO:0000256|HAMAP-Rule:MF_00664}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 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:0000256|HAMAP-
CC Rule:MF_00664};
CC -!- COFACTOR:
CC Name=pyruvate; Xref=ChEBI:CHEBI:15361;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00664};
CC Note=Binds 1 pyruvoyl group covalently per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_00664};
CC -!- PATHWAY: Phospholipid metabolism; phosphatidylethanolamine
CC biosynthesis; phosphatidylethanolamine from CDP-diacylglycerol: step
CC 2/2. {ECO:0000256|HAMAP-Rule:MF_00664}.
CC -!- SUBUNIT: Heterodimer of a large membrane-associated beta subunit and a
CC small pyruvoyl-containing alpha subunit. {ECO:0000256|HAMAP-
CC Rule:MF_00664}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|HAMAP-Rule:MF_00664};
CC Peripheral membrane protein {ECO:0000256|HAMAP-Rule:MF_00664}.
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 post-translation
CC cleavage follows an unusual pathway, termed non-hydrolytic serinolysis,
CC in which the side chain hydroxyl group of the serine supplies its
CC oxygen atom to form the C-terminus of the beta chain, while the
CC remainder of the serine residue undergoes an oxidative deamination to
CC produce ammonia and the pyruvoyl prosthetic group on the alpha chain.
CC {ECO:0000256|HAMAP-Rule:MF_00664}.
CC -!- SIMILARITY: Belongs to the phosphatidylserine decarboxylase family.
CC PSD-A subfamily. {ECO:0000256|HAMAP-Rule:MF_00664}.
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DR EMBL; CP002349; ADR22743.1; -; Genomic_DNA.
DR RefSeq; WP_013454886.1; NC_014759.1.
DR AlphaFoldDB; E4TR62; -.
DR STRING; 643867.Ftrac_2765; -.
DR KEGG; mtt:Ftrac_2765; -.
DR eggNOG; COG0688; Bacteria.
DR HOGENOM; CLU_072492_1_0_10; -.
DR OrthoDB; 9790893at2; -.
DR UniPathway; UPA00558; UER00616.
DR Proteomes; UP000008720; 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_00664; PS_decarb_PSD_A; 1.
DR InterPro; IPR003817; PS_Dcarbxylase.
DR InterPro; IPR033175; PSD-A.
DR PANTHER; PTHR35809; ARCHAETIDYLSERINE DECARBOXYLASE PROENZYME-RELATED; 1.
DR PANTHER; PTHR35809:SF1; ARCHAETIDYLSERINE DECARBOXYLASE PROENZYME-RELATED; 1.
DR Pfam; PF02666; PS_Dcarbxylase; 1.
PE 3: Inferred from homology;
KW Cell membrane {ECO:0000256|HAMAP-Rule:MF_00664};
KW Decarboxylase {ECO:0000256|ARBA:ARBA00022793, ECO:0000256|HAMAP-
KW Rule:MF_00664}; Lipid biosynthesis {ECO:0000256|HAMAP-Rule:MF_00664};
KW Lipid metabolism {ECO:0000256|HAMAP-Rule:MF_00664};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00664};
KW Membrane {ECO:0000256|HAMAP-Rule:MF_00664, ECO:0000256|SAM:Phobius};
KW Phospholipid biosynthesis {ECO:0000256|HAMAP-Rule:MF_00664};
KW Phospholipid metabolism {ECO:0000256|HAMAP-Rule:MF_00664};
KW Pyruvate {ECO:0000256|ARBA:ARBA00023317, ECO:0000256|HAMAP-Rule:MF_00664};
KW Reference proteome {ECO:0000313|Proteomes:UP000008720};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius};
KW Zymogen {ECO:0000256|ARBA:ARBA00023145, ECO:0000256|HAMAP-Rule:MF_00664}.
FT CHAIN 1..187
FT /note="Phosphatidylserine decarboxylase beta chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00664"
FT /id="PRO_5023342267"
FT CHAIN 188..220
FT /note="Phosphatidylserine decarboxylase alpha chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00664"
FT /id="PRO_5023342265"
FT TRANSMEM 12..29
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 35..54
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT ACT_SITE 188
FT /note="Schiff-base intermediate with substrate; via pyruvic
FT acid"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00664"
FT SITE 187..188
FT /note="Cleavage (non-hydrolytic); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00664"
FT MOD_RES 188
FT /note="Pyruvic acid (Ser); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00664"
SQ SEQUENCE 220 AA; 24977 MW; F9C2822D8C124E68 CRC64;
MTLHKEGRKI LFFSLIIFVG VFFLFEYALD TPTWVNNAVL VALIVLYLVI LQFFRSPKFI
INKDEKHVLA PADGKVVVIE DTEEQEYFKG KRKQISIFMS PVNVHVNRSP ISGVVKFCKY
HAGKYLVAWH PKSSTENERT TIVVETANGV EVLFRQIAGA MARRIKWYVN EGDMVEQGGE
FGFIKFGSRV DIYLPLDSEV KVNIGDKTKG GRTVIAELKS
//