ID J8Q1M5_SACAR Unreviewed; 1147 AA.
AC J8Q1M5;
DT 31-OCT-2012, integrated into UniProtKB/TrEMBL.
DT 31-OCT-2012, sequence version 1.
DT 27-MAR-2024, entry version 56.
DE RecName: Full=Phosphatidylserine decarboxylase proenzyme 2 {ECO:0000256|HAMAP-Rule:MF_03209};
DE EC=4.1.1.65 {ECO:0000256|HAMAP-Rule:MF_03209};
DE Contains:
DE RecName: Full=Phosphatidylserine decarboxylase 2 beta chain {ECO:0000256|HAMAP-Rule:MF_03209};
DE Contains:
DE RecName: Full=Phosphatidylserine decarboxylase 2 alpha chain {ECO:0000256|HAMAP-Rule:MF_03209};
GN Name=PSD2 {ECO:0000256|HAMAP-Rule:MF_03209};
GN ORFNames=SU7_1309 {ECO:0000313|EMBL:EJS43553.1};
OS Saccharomyces arboricola (strain H-6 / AS 2.3317 / CBS 10644) (Yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Saccharomyces.
OX NCBI_TaxID=1160507 {ECO:0000313|EMBL:EJS43553.1, ECO:0000313|Proteomes:UP000006968};
RN [1] {ECO:0000313|EMBL:EJS43553.1, ECO:0000313|Proteomes:UP000006968}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=H-6 / AS 2.3317 / CBS 10644
RC {ECO:0000313|Proteomes:UP000006968};
RX PubMed=23368932; DOI=10.1186/1471-2164-14-69;
RA Liti G., Nguyen Ba A.N., Blythe M., Mueller C.A., Bergstroem A.,
RA Cubillos F.A., Dafhnis-Calas F., Khoshraftar S., Malla S., Mehta N.,
RA Siow C.C., Warringer J., Moses A.M., Louis E.J., Nieduszynski C.A.;
RT "High quality de novo sequencing and assembly of the Saccharomyces
RT arboricolus genome.";
RL BMC Genomics 14:69-69(2013).
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_03209}.
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_03209};
CC -!- COFACTOR:
CC Name=pyruvate; Xref=ChEBI:CHEBI:15361;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03209};
CC Note=Binds 1 pyruvoyl group covalently per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_03209};
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_03209}.
CC -!- SUBUNIT: Heterodimer of a large membrane-associated beta subunit and a
CC small pyruvoyl-containing alpha subunit. Interacts with pstB2. This
CC interaction may be a means to structurally tether the donor membrane
CC (ER) harboring PstB2 to acceptor membranes (Golgi/endosomes) harboring
CC PSD2 during PtdSer transport to the site of PtdEtn synthesis.
CC {ECO:0000256|HAMAP-Rule:MF_03209}.
CC -!- SUBCELLULAR LOCATION: Golgi apparatus membrane {ECO:0000256|HAMAP-
CC Rule:MF_03209}; Peripheral membrane protein {ECO:0000256|HAMAP-
CC Rule:MF_03209}; Cytoplasmic side {ECO:0000256|HAMAP-Rule:MF_03209}.
CC Endosome membrane {ECO:0000256|HAMAP-Rule:MF_03209}; Peripheral
CC membrane protein {ECO:0000256|HAMAP-Rule:MF_03209}; Cytoplasmic side
CC {ECO:0000256|HAMAP-Rule:MF_03209}.
CC -!- DOMAIN: The C2 domains have an essential, but non-catalytic function.
CC They may facilitate interaction with PstB2 and are required for lipid
CC transport function. {ECO:0000256|HAMAP-Rule:MF_03209}.
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_03209}.
CC -!- SIMILARITY: Belongs to the phosphatidylserine decarboxylase family.
CC PSD-B subfamily. Eukaryotic type II sub-subfamily. {ECO:0000256|HAMAP-
CC Rule:MF_03209}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EJS43553.1}.
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DR EMBL; ALIE01000089; EJS43553.1; -; Genomic_DNA.
DR AlphaFoldDB; J8Q1M5; -.
DR HOGENOM; CLU_002661_1_0_1; -.
DR OrthoDB; 51217at2759; -.
DR UniPathway; UPA00558; UER00616.
DR Proteomes; UP000006968; Chromosome VII.
DR GO; GO:0010008; C:endosome membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0000139; C:Golgi membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0005795; C:Golgi stack; IEA:UniProtKB-UniRule.
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 CDD; cd04039; C2_PSD; 1.
DR Gene3D; 2.60.40.150; C2 domain; 2.
DR HAMAP; MF_00663; PS_decarb_PSD_B_type2; 1.
DR InterPro; IPR000008; C2_dom.
DR InterPro; IPR035892; C2_domain_sf.
DR InterPro; IPR003817; PS_Dcarbxylase.
DR InterPro; IPR033177; PSD-B.
DR InterPro; IPR033179; PSD_type2_pro.
DR NCBIfam; TIGR00163; PS_decarb; 1.
DR PANTHER; PTHR10067; PHOSPHATIDYLSERINE DECARBOXYLASE; 1.
DR PANTHER; PTHR10067:SF17; PHOSPHATIDYLSERINE DECARBOXYLASE PROENZYME 2; 1.
DR Pfam; PF00168; C2; 2.
DR Pfam; PF02666; PS_Dcarbxylase; 1.
DR SMART; SM00239; C2; 2.
DR SUPFAM; SSF49562; C2 domain (Calcium/lipid-binding domain, CaLB); 2.
DR PROSITE; PS50004; C2; 1.
PE 3: Inferred from homology;
KW Calcium {ECO:0000256|ARBA:ARBA00022837};
KW Decarboxylase {ECO:0000256|ARBA:ARBA00022793, ECO:0000256|HAMAP-
KW Rule:MF_03209}; Endosome {ECO:0000256|HAMAP-Rule:MF_03209};
KW Golgi apparatus {ECO:0000256|HAMAP-Rule:MF_03209};
KW Lipid biosynthesis {ECO:0000256|ARBA:ARBA00022516, ECO:0000256|HAMAP-
KW Rule:MF_03209};
KW Lipid metabolism {ECO:0000256|ARBA:ARBA00023098, ECO:0000256|HAMAP-
KW Rule:MF_03209};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_03209};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_03209};
KW Phospholipid biosynthesis {ECO:0000256|ARBA:ARBA00023209,
KW ECO:0000256|HAMAP-Rule:MF_03209};
KW Phospholipid metabolism {ECO:0000256|ARBA:ARBA00023264, ECO:0000256|HAMAP-
KW Rule:MF_03209};
KW Pyruvate {ECO:0000256|ARBA:ARBA00023317, ECO:0000256|HAMAP-Rule:MF_03209};
KW Reference proteome {ECO:0000313|Proteomes:UP000006968};
KW Zymogen {ECO:0000256|ARBA:ARBA00023145, ECO:0000256|HAMAP-Rule:MF_03209}.
FT CHAIN 1..1051
FT /note="Phosphatidylserine decarboxylase 2 beta chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT /id="PRO_5023393139"
FT CHAIN 1052..1147
FT /note="Phosphatidylserine decarboxylase 2 alpha chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT /id="PRO_5023393140"
FT DOMAIN 487..609
FT /note="C2"
FT /evidence="ECO:0000259|PROSITE:PS50004"
FT REGION 111..141
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 269..355
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 269..294
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 306..336
FT /note="Acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 908
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT ACT_SITE 965
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT ACT_SITE 1052
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT ACT_SITE 1052
FT /note="Schiff-base intermediate with substrate; via pyruvic
FT acid; for decarboxylase activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT SITE 1051..1052
FT /note="Cleavage (non-hydrolytic); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT MOD_RES 1052
FT /note="Pyruvic acid (Ser); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
SQ SEQUENCE 1147 AA; 131637 MW; 312CF1506B10D578 CRC64;
MRIIKGRKRS KNKKPTLVLK INVIQTENIE ALKTFNCNPV CFVTTNTFYS QKTSKLKNSN
THWNQTLKIK LPRNPTSKWL RIIVYDVLPT GNPPTTPNRS RTTTANTSTI ALSNSGQNSL
SHSSRNLNVT SKSNQTSTSI NSVSSATTAV GSYTGSSLST SSSGSMHKAK TNSYLYLGET
KFSLLDLFKR RDTTTSYKFS IEPQWYHLYD MKRGNRQNSS NSDYLVGDIL LGFKLECNFK
KMPTFQAFNS WRNDLNYYLN GIDRSKARMR SSSSLPPPLE DMVSSSSDVS VDEIQCEKSY
SDSELAREEE DEEEEEEGED IDAEDEIDDE ESIEDVNSGD SMSIEKTYDT DNDTAYDSIS
EVVSLNDEEL DILNDFEDED HSSATDMNVH DIDEDKHISL SSMITALDEY DVVEPEDVER
LPFVSENDIT SVDDEFENQR GSDEDFDIYN EEKNEDTDSQ SNEYIGSRLL HLQRGKRKKA
YANYIYRRAK NNFFISKKEH ATGVVFMHIE AIKNLPALKN RLSKTNYEMD PFIVISFGRR
VFKTSWRKHS LNPEFNEYAA FEVFPHETNF AFSIKVVDKD SFSFNDDVAK CELAWFDMLQ
QQQHENEWIP YEIPLDLTVE PKHAPKQPTL YSHFKFVSYA SLKNNFWKEA VNTSLDLEIL
DIVQVMLYLE RLGSFTVDDS FELFQHFNKS GWAGESISRS QLVEGLQAWR KSTNFRRIWT
CPRCLRSCKP TRNARRSKLV LENDLITHFA ICTFSKEHKT LKPSYVSSAF ASKRWFSKVL
IKLTYGKYAL GSNNANILVQ DRDTGIIIEE KISAHVKLGM RIIYNGKSPE SKKFRSLLKT
LSVRQGKKFD NTASAKQIEP FIKFHSLDLS QCRDKNFKTF NEFFYRKLKP GSRLPESHNK
EIFFSPADSR CTVFSTIQES KEIWIKGRKF SIKKLANNYS PEIFNDSKCS IGIFRLAPQD
YHRFHSPCNG KIGKPIYLDG EYYTVNPMAV RSELDVFCEN IRVIIPIDSP QFGKLLYIPI
GAMMVGSILL TCKENDLVEG GQELGYFKFG GSTIVIVIPH DNFMFDSDLV KNSSERIETL
VKVGMSIGHT SNVSELKRVR IKVDDPRKIE QIKRTISVSD ENARNVGNAT WEYHTLREMM
NRGFTEI
//
