ID G8YUH5_PICSO Unreviewed; 1129 AA.
AC G8YUH5;
DT 22-FEB-2012, integrated into UniProtKB/TrEMBL.
DT 22-FEB-2012, sequence version 1.
DT 27-MAR-2024, entry version 57.
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=Piso0_000088 {ECO:0000313|EMBL:CCE72508.1};
GN Synonyms=PSD2 {ECO:0000256|HAMAP-Rule:MF_03209};
GN ORFNames=GNLVRS01_PISO0A01738g {ECO:0000313|EMBL:CCE72508.1};
OS Pichia sorbitophila (strain ATCC MYA-4447 / BCRC 22081 / CBS 7064 / NBRC
OS 10061 / NRRL Y-12695) (Hybrid yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Debaryomycetaceae; Millerozyma.
OX NCBI_TaxID=559304 {ECO:0000313|EMBL:CCE72508.1, ECO:0000313|Proteomes:UP000005222};
RN [1] {ECO:0000313|Proteomes:UP000005222}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC MYA-4447 / BCRC 22081 / CBS 7064 / NBRC 10061 / NRRL
RC Y-12695 {ECO:0000313|Proteomes:UP000005222};
RX DOI=10.1534/g3.111.000745;
RA Leh Louis V., Despons L., Friedrich A., Martin T., Durrens P.,
RA Casaregola S., Neuveglise C., Fairhead C., Marck C., Cruz J.A.,
RA Straub M.L., Kugler V., Sacerdot C., Uzunov Z., Thierry A., Weiss S.,
RA Bleykasten C., De Montigny J., Jacques N., Jung P., Lemaire M., Mallet S.,
RA Morel G., Richard G.F., Sarkar A., Savel G., Schacherer J., Seret M.L.,
RA Talla E., Samson G., Jubin C., Poulain J., Vacherie B., Barbe V.,
RA Pelletier E., Sherman D.J., Westhof E., Weissenbach J., Baret P.V.,
RA Wincker P., Gaillardin C., Dujon B., Souciet J.L.;
RT "Pichia sorbitophila, an interspecies yeast hybrid reveals early steps of
RT genome resolution following polyploidization.";
RL G3 (Bethesda) 2:299-311(2012).
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}.
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DR EMBL; FO082059; CCE72508.1; -; Genomic_DNA.
DR AlphaFoldDB; G8YUH5; -.
DR STRING; 559304.G8YUH5; -.
DR eggNOG; KOG2419; Eukaryota.
DR HOGENOM; CLU_002661_0_0_1; -.
DR InParanoid; G8YUH5; -.
DR UniPathway; UPA00558; UER00616.
DR Proteomes; UP000005222; Chromosome A.
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 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; 2.
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:UP000005222};
KW Zymogen {ECO:0000256|ARBA:ARBA00023145, ECO:0000256|HAMAP-Rule:MF_03209}.
FT CHAIN 1..1012
FT /note="Phosphatidylserine decarboxylase 2 beta chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT /id="PRO_5023539900"
FT CHAIN 1013..1129
FT /note="Phosphatidylserine decarboxylase 2 alpha chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT /id="PRO_5023539901"
FT DOMAIN 5..137
FT /note="C2"
FT /evidence="ECO:0000259|PROSITE:PS50004"
FT DOMAIN 374..493
FT /note="C2"
FT /evidence="ECO:0000259|PROSITE:PS50004"
FT REGION 188..207
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 864
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT ACT_SITE 926
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT ACT_SITE 1013
FT /note="Charge relay system; for autoendoproteolytic
FT cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT ACT_SITE 1013
FT /note="Schiff-base intermediate with substrate; via pyruvic
FT acid; for decarboxylase activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT SITE 1012..1013
FT /note="Cleavage (non-hydrolytic); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
FT MOD_RES 1013
FT /note="Pyruvic acid (Ser); by autocatalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03209"
SQ SEQUENCE 1129 AA; 129464 MW; 15E28F46B5A054F8 CRC64;
MRIIPRRRRQ KKVDREGGGK TLYLKVHVSK AVELIDNRIQ NKDGPIGSNK KGIRPTLMVA
LNKKVKKTTK KSRTVQLTWN SEIKIPLRYR DYSQVLNVVL WDNHKKYKNY LGELRLKLSD
VFLKDGSFVA KTEPKWYKLY SNKAQKSFVT GSILLSFELS KTIGRKKSKA NNKPVELKLG
HGKKEDILHS SDVSNGENKD TGTPSLPAVK IEPAEDILPP GNEKNKQVYI SEEDAIQDDF
NEWLKSLIYP DPDPDMFVPD DQGFYLDSDE IENYLTDASD IESNLSASSD ATKENHNSSA
SISIGNLHED LDNKLTLSTE DITSESPLFN EGAFMYDSER AGSSNWPKNF GTLESESSKH
RKSFGFNKLK KAKTRGHFDF GNKYVWGVLF IEIVNCTDLP PYKSFNRATF NMDPFVGVTF
EKKTFRTSWK RHDLNPIFNE RLAFEVLPHE SNFSIQFSVL DKDRISYNDK VGTCTLNMGD
VYKMSEDPDD RVGSEKNEPK EHLKDILDQD SVQFDSQNSD MDILHNDNIV ETVHRKKFTN
KKKVTLSYAD TSKFKTLNLA LKLHDSKYEA KYNPKLKIRV RFEKYESIRK QFWSILLDQY
NELNEHDGKY DYIELISFLD TLGCDNSNDI AQTFFDKNSK SAWGGESLNY SEIIDCLEDH
INNFSEKDNK IFEFEKCPLC NQKRLSRKQD RDIITHVAIC ASKDWSIVSK MLVSSYVSPQ
IASKRWFSKL FIKLTYGKYK LGGNSANILV QDRTTGVIME EKMEVYVRLG IRLLYKGFDT
SKSRRVRQLL RKMSFKQGMK FDNPQSKNDI KSFVKFHKLD LSECLEPNIE SYRTFNEFFF
RRLKPGARKI EGRDNPKIVV SPADSRCTAF ASVNEATTFW IKGKNFTLPK LFNGNFNNLQ
DTELFNPEDC SLGIFRLAPQ DYHRFHSPVD GVVTNIKHIE GEYYTVNPMA IRSELDVFGE
NVRTIISIDT KEFGVVVMIA IGAMMVGSIV LTKSVNDTVH RGEEVGYFKF GGSTVLLLMR
KSQFTFDRDL NNNSLSSIET MVRVGQSIGH TPDTAEFKRD HVDFNSLSRE YKKNLIRVLT
GGDLESAQEL SNWHAAHTNL DDILHSEYDS EDKSILSEEA SSLSEASFT
//
