ID A0A136J875_9PEZI Unreviewed; 516 AA.
AC A0A136J875;
DT 11-MAY-2016, integrated into UniProtKB/TrEMBL.
DT 11-MAY-2016, sequence version 1.
DT 13-SEP-2023, entry version 39.
DE RecName: Full=Phosphatidylserine decarboxylase proenzyme 1, mitochondrial {ECO:0000256|HAMAP-Rule:MF_03208};
DE EC=4.1.1.65 {ECO:0000256|HAMAP-Rule:MF_03208};
DE Contains:
DE RecName: Full=Phosphatidylserine decarboxylase 1 beta chain {ECO:0000256|HAMAP-Rule:MF_03208};
DE Contains:
DE RecName: Full=Phosphatidylserine decarboxylase 1 alpha chain {ECO:0000256|HAMAP-Rule:MF_03208};
GN Name=PSD1 {ECO:0000256|HAMAP-Rule:MF_03208};
GN ORFNames=Micbo1qcDRAFT_232837 {ECO:0000313|EMBL:KXJ93256.1};
OS Microdochium bolleyi.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes;
OC Xylariomycetidae; Xylariales; Microdochiaceae; Microdochium.
OX NCBI_TaxID=196109 {ECO:0000313|EMBL:KXJ93256.1, ECO:0000313|Proteomes:UP000070501};
RN [1] {ECO:0000313|Proteomes:UP000070501}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=J235TASD1 {ECO:0000313|Proteomes:UP000070501};
RG DOE Joint Genome Institute;
RA David A.S., May G., Haridas S., Lim J., Wang M., Labutti K., Lipzen A.,
RA Barry K., Grigoriev I.V.;
RT "Draft genome sequence of Microdochium bolleyi, a fungal endophyte of
RT beachgrass.";
RL Submitted (FEB-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the formation of phosphatidylethanolamine (PtdEtn)
CC from phosphatidylserine (PtdSer). Plays a central role in phospholipid
CC metabolism and in the interorganelle trafficking of phosphatidylserine.
CC {ECO:0000256|HAMAP-Rule:MF_03208}.
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_03208};
CC -!- COFACTOR:
CC Name=pyruvate; Xref=ChEBI:CHEBI:15361;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03208};
CC Note=Binds 1 pyruvoyl group covalently per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_03208};
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_03208}.
CC -!- SUBUNIT: Heterodimer of a large membrane-associated beta subunit and a
CC small pyruvoyl-containing alpha subunit. {ECO:0000256|HAMAP-
CC Rule:MF_03208}.
CC -!- SUBCELLULAR LOCATION: [Phosphatidylserine decarboxylase 1 alpha chain]:
CC Mitochondrion inner membrane {ECO:0000256|HAMAP-Rule:MF_03208};
CC Peripheral membrane protein {ECO:0000256|HAMAP-Rule:MF_03208};
CC Intermembrane side {ECO:0000256|HAMAP-Rule:MF_03208}. Note=Anchored to
CC the mitochondrial inner membrane through its interaction with the
CC integral membrane beta chain. {ECO:0000256|HAMAP-Rule:MF_03208}.
CC -!- SUBCELLULAR LOCATION: [Phosphatidylserine decarboxylase 1 beta chain]:
CC Mitochondrion inner membrane {ECO:0000256|HAMAP-Rule:MF_03208}; Single-
CC pass membrane protein {ECO:0000256|HAMAP-Rule:MF_03208}; Intermembrane
CC side {ECO:0000256|HAMAP-Rule:MF_03208}.
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_03208}.
CC -!- SIMILARITY: Belongs to the phosphatidylserine decarboxylase family.
CC PSD-B subfamily. Eukaryotic type I sub-subfamily. {ECO:0000256|HAMAP-
CC Rule:MF_03208}.
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DR EMBL; KQ964248; KXJ93256.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A136J875; -.
DR STRING; 196109.A0A136J875; -.
DR InParanoid; A0A136J875; -.
DR OrthoDB; 1216391at2759; -.
DR UniPathway; UPA00558; UER00616.
DR Proteomes; UP000070501; Unassembled WGS sequence.
DR GO; GO:0005743; C:mitochondrial inner 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-UniRule.
DR GO; GO:0016540; P:protein autoprocessing; IEA:UniProtKB-UniRule.
DR HAMAP; MF_03208; PS_decarb_PSD_B_type1_euk; 1.
DR InterPro; IPR003817; PS_Dcarbxylase.
DR InterPro; IPR033177; PSD-B.
DR InterPro; IPR033661; PSD_type1_euk.
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; 2.
PE 3: Inferred from homology;
KW Decarboxylase {ECO:0000256|ARBA:ARBA00022793, ECO:0000256|HAMAP-
KW Rule:MF_03208}; Lipid biosynthesis {ECO:0000256|HAMAP-Rule:MF_03208};
KW Lipid metabolism {ECO:0000256|HAMAP-Rule:MF_03208};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_03208};
KW Membrane {ECO:0000256|HAMAP-Rule:MF_03208};
KW Mitochondrion {ECO:0000256|HAMAP-Rule:MF_03208};
KW Mitochondrion inner membrane {ECO:0000256|HAMAP-Rule:MF_03208};
KW Phospholipid biosynthesis {ECO:0000256|HAMAP-Rule:MF_03208};
KW Phospholipid metabolism {ECO:0000256|HAMAP-Rule:MF_03208};
KW Pyruvate {ECO:0000256|HAMAP-Rule:MF_03208};
KW Reference proteome {ECO:0000313|Proteomes:UP000070501};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|HAMAP-
KW Rule:MF_03208};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, ECO:0000256|HAMAP-
KW Rule:MF_03208}; Zymogen {ECO:0000256|HAMAP-Rule:MF_03208}.
FT CHAIN 1..474
FT /note="Phosphatidylserine decarboxylase 1 beta chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03208"
FT /id="PRO_5023545289"
FT CHAIN 475..516
FT /note="Phosphatidylserine decarboxylase 1 alpha chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03208"
FT /id="PRO_5023545290"
FT TOPO_DOM 1..67
FT /note="Mitochondrial matrix"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03208"
FT TOPO_DOM 87..516
FT /note="Mitochondrial intermembrane"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03208"
FT REGION 10..32
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 91..111
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 233..254
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 97..111
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 201
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03208"
FT ACT_SITE 347
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03208"
FT ACT_SITE 475
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03208"
FT ACT_SITE 475
FT /note="Schiff-base intermediate with substrate; via pyruvic
FT acid; for decarboxylase activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03208"
FT SITE 474..475
FT /note="Cleavage (non-hydrolytic); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03208"
FT MOD_RES 475
FT /note="Pyruvic acid (Ser); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03208"
SQ SEQUENCE 516 AA; 57011 MW; 2D8A34C747EDF28A CRC64;
MASMQAVMLR RTLRGPSRTP LGTGLRPQSR SSLVASPRAA FHHAPRRPQN EKFRSKLGDA
LNKTRIQWKP IPIGLGIGFL GLFQFYRTQT RENDNGGANG DRPKPRERIR PEGPWQVQVM
STLPLKAISR LWGKFNEIPI PYYLRVPGFK LYSWIFGVNL DEVAEPDLHV FPNLASFFYR
KIKDGARPLD PSSNALISPA DGRILQFGKV VGGDIEQVKG MTYSVDALLG KSTPPPSIAS
DSSGPDPKRV ETHGEEKLVK QDEEFAKVNG ISYSIPDLIS GSKKESHEGH KISDQAARPS
SPGAVADVRA ELALGEKPWY DLLSEDKNSS LYYAVIYLAP GDYHRFHSPA NWVVERRRHF
AGELFSVSPY LQRTLPGLFT LNERVALIGR WRWGFFSYVP VGATNVGSIV INFDKELRTN
SLLTDTEADR AAEEAKARGE PYSGFAEATY TAASVVLGGH ALRRGEEMGG FKLGSTIVLV
FEAPAAENPA AKGGFRWAVE MGQKVKMGQA LGYVEE
//
