ID A0A1B1SCR3_9BACT Unreviewed; 221 AA.
AC A0A1B1SCR3; A0A1Z2XG34;
DT 02-NOV-2016, integrated into UniProtKB/TrEMBL.
DT 02-NOV-2016, sequence version 1.
DT 24-JAN-2024, entry version 40.
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 ORFNames=A4V02_12730 {ECO:0000313|EMBL:ANU64500.1}, E5333_11385
GN {ECO:0000313|EMBL:TGY71416.1};
OS Muribaculum intestinale.
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Muribaculaceae;
OC Muribaculum.
OX NCBI_TaxID=1796646 {ECO:0000313|EMBL:ANU64500.1, ECO:0000313|Proteomes:UP000186351};
RN [1] {ECO:0000313|Proteomes:UP000186351}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=YL27 {ECO:0000313|Proteomes:UP000186351};
RA Uchimura Y., Wyss M., Brugiroux S., Limenitakis J.P., Stecher B.,
RA McCoy K.D., Macpherson A.J.;
RT "Complete Genome Sequences of Twelve Strains of a Stable Defined Moderately
RT Diverse Mouse Microbiota 2 (sDMDMm2).";
RL Submitted (APR-2016) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ANU64500.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=YL27 {ECO:0000313|EMBL:ANU64500.1};
RA Uchimura Y., Wyss M., Brugiroux S., Limenitakis J.P., Stecher B.,
RA McCoy K.D., Macpherson A.J.;
RT "Complete Genome Sequences of Twelve Strains of a Stable Defined Moderately
RT Diverse Mouse Microbiota 2 (sDMDMm2).";
RL Submitted (APR-2017) to the EMBL/GenBank/DDBJ databases.
RN [3] {ECO:0000313|EMBL:TGY71416.1, ECO:0000313|Proteomes:UP000306630}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NM06_A21 {ECO:0000313|EMBL:TGY71416.1,
RC ECO:0000313|Proteomes:UP000306630};
RA Navarre W., Wong E., Huang K., Tropini C., Ng K., Yu B.;
RT "Microbes associate with the intestines of laboratory mice.";
RL Submitted (APR-2019) to the EMBL/GenBank/DDBJ databases.
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; CP015402; ANU64500.1; -; Genomic_DNA.
DR EMBL; SRYD01000050; TGY71416.1; -; Genomic_DNA.
DR RefSeq; WP_068961777.1; NZ_WVUM01000007.1.
DR AlphaFoldDB; A0A1B1SCR3; -.
DR STRING; 1796646.A4V02_12730; -.
DR GeneID; 65537740; -.
DR KEGG; pary:A4V02_12730; -.
DR OrthoDB; 9790893at2; -.
DR UniPathway; UPA00558; UER00616.
DR Proteomes; UP000186351; Chromosome.
DR Proteomes; UP000306630; Unassembled WGS sequence.
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:UP000186351};
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..189
FT /note="Phosphatidylserine decarboxylase beta chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00664"
FT /id="PRO_5034853846"
FT CHAIN 190..221
FT /note="Phosphatidylserine decarboxylase alpha chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00664"
FT /id="PRO_5034853847"
FT TRANSMEM 12..31
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 37..55
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT ACT_SITE 190
FT /note="Schiff-base intermediate with substrate; via pyruvic
FT acid"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00664"
FT SITE 189..190
FT /note="Cleavage (non-hydrolytic); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00664"
FT MOD_RES 190
FT /note="Pyruvic acid (Ser); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00664"
SQ SEQUENCE 221 AA; 24752 MW; AAA7EE2C94A9A452 CRC64;
MKVKIHREGL NILIILLLIL LVINIPVWLF IRPAAIPATF TSVSAIIYLL VLNFFRSPRR
QFRGNPDKVV VASADGKVVA LEETFEDEYL HCRCIQLSVF MSVLNVHANW FPVDGEVLYV
KHHSGRFLSA WLPKSSTENE RSTVAIRSDA GPIVLMRQVA GALARRIVTY ACPGERASIE
QHMGFIKFGS RIDLYLPLDS EILVKLGDKT IGGVTEVARL K
//
