ID D3HN18_LEGLN Unreviewed; 285 AA.
AC D3HN18;
DT 23-MAR-2010, integrated into UniProtKB/TrEMBL.
DT 23-MAR-2010, sequence version 1.
DT 27-MAR-2024, entry version 92.
DE RecName: Full=Phosphatidylserine decarboxylase proenzyme {ECO:0000256|HAMAP-Rule:MF_00662};
DE EC=4.1.1.65 {ECO:0000256|HAMAP-Rule:MF_00662};
DE Contains:
DE RecName: Full=Phosphatidylserine decarboxylase alpha chain {ECO:0000256|HAMAP-Rule:MF_00662};
DE Contains:
DE RecName: Full=Phosphatidylserine decarboxylase beta chain {ECO:0000256|HAMAP-Rule:MF_00662};
GN Name=psd {ECO:0000256|HAMAP-Rule:MF_00662,
GN ECO:0000313|EMBL:CBJ13868.1};
GN OrderedLocusNames=LLO_3404 {ECO:0000313|EMBL:CBJ13868.1};
OS Legionella longbeachae serogroup 1 (strain NSW150).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Legionellales;
OC Legionellaceae; Legionella.
OX NCBI_TaxID=661367 {ECO:0000313|EMBL:CBJ13868.1, ECO:0000313|Proteomes:UP000001060};
RN [1] {ECO:0000313|EMBL:CBJ13868.1, ECO:0000313|Proteomes:UP000001060}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NSW150 {ECO:0000313|EMBL:CBJ13868.1,
RC ECO:0000313|Proteomes:UP000001060};
RX PubMed=20174605; DOI=10.1371/journal.pgen.1000851;
RA Cazalet C., Gomez-Valero L., Rusniok C., Lomma M., Dervins-Ravault D.,
RA Newton H., Sansom F., Jarraud S., Zidane N., Ma L., Bouchier C.,
RA Etienne J., Hartland E., Buchrieser C.;
RT "Analysis of the Legionella longbeachae genome and transcriptome uncovers
RT unique strategies to cause Legionnaires' disease.";
RL PLoS Genet. 6:E1000851-E1000851(2010).
CC -!- FUNCTION: Catalyzes the formation of phosphatidylethanolamine (PtdEtn)
CC from phosphatidylserine (PtdSer). {ECO:0000256|HAMAP-Rule:MF_00662}.
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_00662};
CC -!- COFACTOR:
CC Name=pyruvate; Xref=ChEBI:CHEBI:15361;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00662};
CC Note=Binds 1 pyruvoyl group covalently per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_00662};
CC -!- PATHWAY: Lipid metabolism. {ECO:0000256|ARBA:ARBA00005189}.
CC -!- PATHWAY: Phospholipid metabolism; phosphatidylethanolamine
CC biosynthesis; phosphatidylethanolamine from CDP-diacylglycerol: step
CC 2/2. {ECO:0000256|HAMAP-Rule:MF_00662}.
CC -!- SUBUNIT: Heterodimer of a large membrane-associated beta subunit and a
CC small pyruvoyl-containing alpha subunit. {ECO:0000256|HAMAP-
CC Rule:MF_00662}.
CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000256|HAMAP-Rule:MF_00662};
CC Peripheral membrane protein {ECO:0000256|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:0000256|HAMAP-Rule:MF_00662}.
CC -!- SIMILARITY: Belongs to the phosphatidylserine decarboxylase family.
CC PSD-B subfamily. Prokaryotic type I sub-subfamily. {ECO:0000256|HAMAP-
CC Rule:MF_00662}.
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DR EMBL; FN650140; CBJ13868.1; -; Genomic_DNA.
DR RefSeq; WP_003633955.1; NC_013861.1.
DR AlphaFoldDB; D3HN18; -.
DR STRING; 661367.LLO_3404; -.
DR KEGG; llo:LLO_3404; -.
DR eggNOG; COG0688; Bacteria.
DR HOGENOM; CLU_029061_4_1_6; -.
DR OrthoDB; 9802030at2; -.
DR UniPathway; UPA00558; UER00616.
DR Proteomes; UP000001060; 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-B.
DR InterPro; IPR033178; PSD_type1_pro.
DR NCBIfam; TIGR00163; PS_decarb; 1.
DR PANTHER; PTHR10067; PHOSPHATIDYLSERINE DECARBOXYLASE; 1.
DR PANTHER; PTHR10067:SF6; PHOSPHATIDYLSERINE DECARBOXYLASE PROENZYME, MITOCHONDRIAL; 1.
DR Pfam; PF02666; PS_Dcarbxylase; 1.
PE 3: Inferred from homology;
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475, ECO:0000256|HAMAP-
KW Rule:MF_00662};
KW Decarboxylase {ECO:0000256|ARBA:ARBA00022793, ECO:0000256|HAMAP-
KW Rule:MF_00662}; Lipid biosynthesis {ECO:0000256|HAMAP-Rule:MF_00662};
KW Lipid metabolism {ECO:0000256|HAMAP-Rule:MF_00662};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00662};
KW Membrane {ECO:0000256|HAMAP-Rule:MF_00662, ECO:0000256|SAM:Phobius};
KW Phospholipid biosynthesis {ECO:0000256|HAMAP-Rule:MF_00662};
KW Phospholipid metabolism {ECO:0000256|HAMAP-Rule:MF_00662};
KW Pyruvate {ECO:0000256|ARBA:ARBA00023317, ECO:0000256|HAMAP-Rule:MF_00662};
KW Reference proteome {ECO:0000313|Proteomes:UP000001060};
KW Transmembrane {ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius};
KW Zymogen {ECO:0000256|ARBA:ARBA00023145, ECO:0000256|HAMAP-Rule:MF_00662}.
FT CHAIN 1..246
FT /note="Phosphatidylserine decarboxylase beta chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00662"
FT /id="PRO_5023375947"
FT CHAIN 247..285
FT /note="Phosphatidylserine decarboxylase alpha chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00662"
FT /id="PRO_5023375948"
FT TRANSMEM 192..212
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT ACT_SITE 89
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00662"
FT ACT_SITE 146
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00662"
FT ACT_SITE 247
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00662"
FT ACT_SITE 247
FT /note="Schiff-base intermediate with substrate; via pyruvic
FT acid; for decarboxylase activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00662"
FT SITE 246..247
FT /note="Cleavage (non-hydrolytic); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00662"
FT MOD_RES 247
FT /note="Pyruvic acid (Ser); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00662"
SQ SEQUENCE 285 AA; 31912 MW; CE2D26DBB9558FCC CRC64;
MPLDLFKKLS QYIIPKHSLT LLAGYLADVK NIKVKDYLIQ RFIHEYQVNM SEALIENPEA
YQCFNDFFIR RLKPGCRPLA QAGVISPVDG CVSEIGSIEE DRLIQAKGHY YTVSELLACN
KEIASRFING RFATLYLSPK DYHRVHMPID AEITSMTYIP GALFSVQPST VQVVPKLFAR
NERLAIFFST PVGPMAIVMV GATIVGAIGT SWHGDIKRSK NRVDFEYPQA NKKMAQGDEM
GYFKLGSTVV VLFADESNVD WNKELKAGSV LRFGEAMGEI GDNKT
//
