PSD_LAWIP
ID PSD_LAWIP Reviewed; 215 AA.
AC Q1MQ97;
DT 28-NOV-2006, integrated into UniProtKB/Swiss-Prot.
DT 28-NOV-2006, sequence version 2.
DT 25-MAY-2022, entry version 72.
DE RecName: Full=Phosphatidylserine decarboxylase proenzyme {ECO:0000255|HAMAP-Rule:MF_00664};
DE EC=4.1.1.65 {ECO:0000255|HAMAP-Rule:MF_00664};
DE Contains:
DE RecName: Full=Phosphatidylserine decarboxylase alpha chain {ECO:0000255|HAMAP-Rule:MF_00664};
DE Contains:
DE RecName: Full=Phosphatidylserine decarboxylase beta chain {ECO:0000255|HAMAP-Rule:MF_00664};
GN Name=psd {ECO:0000255|HAMAP-Rule:MF_00664}; OrderedLocusNames=LI0776;
OS Lawsonia intracellularis (strain PHE/MN1-00).
OC Bacteria; Proteobacteria; Deltaproteobacteria; Desulfovibrionales;
OC Desulfovibrionaceae; Lawsonia.
OX NCBI_TaxID=363253;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PHE/MN1-00;
RA Kaur K., Zhang Q., Beckler D., Munir S., Li L., Kinsley K., Herron L.,
RA Peterson A., May B., Singh S., Gebhart C., Kapur V.;
RT "The complete genome sequence of Lawsonia intracellularis: the causative
RT agent of proliferative enteropathy.";
RL Submitted (NOV-2005) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the formation of phosphatidylethanolamine (PtdEtn)
CC from phosphatidylserine (PtdSer). {ECO:0000255|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:0000255|HAMAP-
CC Rule:MF_00664};
CC -!- COFACTOR:
CC Name=pyruvate; Xref=ChEBI:CHEBI:15361;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00664};
CC Note=Binds 1 pyruvoyl group covalently per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_00664};
CC -!- PATHWAY: Phospholipid metabolism; phosphatidylethanolamine
CC biosynthesis; phosphatidylethanolamine from CDP-diacylglycerol: step
CC 2/2. {ECO:0000255|HAMAP-Rule:MF_00664}.
CC -!- SUBUNIT: Heterodimer of a large membrane-associated beta subunit and a
CC small pyruvoyl-containing alpha subunit. {ECO:0000255|HAMAP-
CC Rule:MF_00664}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_00664};
CC Peripheral membrane protein {ECO:0000255|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:0000255|HAMAP-Rule:MF_00664}.
CC -!- SIMILARITY: Belongs to the phosphatidylserine decarboxylase family.
CC PSD-A subfamily. {ECO:0000255|HAMAP-Rule:MF_00664}.
CC -!- SEQUENCE CAUTION:
CC Sequence=CAJ54830.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; AM180252; CAJ54830.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_015353782.1; NC_008011.1.
DR AlphaFoldDB; Q1MQ97; -.
DR STRING; 363253.LI0776; -.
DR KEGG; lip:LI0776; -.
DR eggNOG; COG0688; Bacteria.
DR HOGENOM; CLU_072492_0_0_7; -.
DR OrthoDB; 891720at2; -.
DR UniPathway; UPA00558; UER00616.
DR Proteomes; UP000002430; 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; PTHR35809; 1.
DR Pfam; PF02666; PS_Dcarbxylase; 1.
DR TIGRFAMs; TIGR00164; PS_decarb_rel; 1.
PE 3: Inferred from homology;
KW Cell membrane; Decarboxylase; Lipid biosynthesis; Lipid metabolism; Lyase;
KW Membrane; Phospholipid biosynthesis; Phospholipid metabolism; Pyruvate;
KW Reference proteome; Zymogen.
FT CHAIN 1..181
FT /note="Phosphatidylserine decarboxylase beta chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00664"
FT /id="PRO_0000262223"
FT CHAIN 182..215
FT /note="Phosphatidylserine decarboxylase alpha chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00664"
FT /id="PRO_0000262224"
FT ACT_SITE 182
FT /note="Schiff-base intermediate with substrate; via pyruvic
FT acid"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00664"
FT SITE 181..182
FT /note="Cleavage (non-hydrolytic); by autocatalysis"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00664"
FT MOD_RES 182
FT /note="Pyruvic acid (Ser); by autocatalysis"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00664"
SQ SEQUENCE 215 AA; 24071 MW; FFB95E20F6FFF501 CRC64;
MGKTNLGIDQ EGFPYIAIFA FSSLIFAILG WWLLAVLCLI GTIFCGHFFR DPERIIPTEA
NIAVSPADGK IIRIEPRQDP ISGESHTCIS IFMNICNVHV NRSPIKGQIE AIQYVQGHFL
NASLDKAAKE NEHCSYLLRD QDGKQWVVVQ IAGLIARRIV CRTKEGDILN RGERFGIIRF
GSRVDLYLPE EYTPTVNLGN KVIAGETILA KKNQE
