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MTAP_CRYNJ
ID   MTAP_CRYNJ              Reviewed;         303 AA.
AC   Q5KPU2; Q560U2;
DT   25-JAN-2012, integrated into UniProtKB/Swiss-Prot.
DT   15-FEB-2005, sequence version 1.
DT   03-AUG-2022, entry version 103.
DE   RecName: Full=S-methyl-5'-thioadenosine phosphorylase {ECO:0000255|HAMAP-Rule:MF_03155};
DE            EC=2.4.2.28 {ECO:0000255|HAMAP-Rule:MF_03155};
DE   AltName: Full=5'-methylthioadenosine phosphorylase {ECO:0000255|HAMAP-Rule:MF_03155};
DE            Short=MTA phosphorylase {ECO:0000255|HAMAP-Rule:MF_03155};
DE            Short=MTAP {ECO:0000255|HAMAP-Rule:MF_03155};
DE            Short=MTAPase {ECO:0000255|HAMAP-Rule:MF_03155};
GN   OrderedLocusNames=CNA01530;
OS   Cryptococcus neoformans var. neoformans serotype D (strain JEC21 / ATCC
OS   MYA-565) (Filobasidiella neoformans).
OC   Eukaryota; Fungi; Dikarya; Basidiomycota; Agaricomycotina; Tremellomycetes;
OC   Tremellales; Cryptococcaceae; Cryptococcus;
OC   Cryptococcus neoformans species complex.
OX   NCBI_TaxID=214684;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=JEC21 / ATCC MYA-565;
RX   PubMed=15653466; DOI=10.1126/science.1103773;
RA   Loftus B.J., Fung E., Roncaglia P., Rowley D., Amedeo P., Bruno D.,
RA   Vamathevan J., Miranda M., Anderson I.J., Fraser J.A., Allen J.E.,
RA   Bosdet I.E., Brent M.R., Chiu R., Doering T.L., Donlin M.J., D'Souza C.A.,
RA   Fox D.S., Grinberg V., Fu J., Fukushima M., Haas B.J., Huang J.C.,
RA   Janbon G., Jones S.J.M., Koo H.L., Krzywinski M.I., Kwon-Chung K.J.,
RA   Lengeler K.B., Maiti R., Marra M.A., Marra R.E., Mathewson C.A.,
RA   Mitchell T.G., Pertea M., Riggs F.R., Salzberg S.L., Schein J.E.,
RA   Shvartsbeyn A., Shin H., Shumway M., Specht C.A., Suh B.B., Tenney A.,
RA   Utterback T.R., Wickes B.L., Wortman J.R., Wye N.H., Kronstad J.W.,
RA   Lodge J.K., Heitman J., Davis R.W., Fraser C.M., Hyman R.W.;
RT   "The genome of the basidiomycetous yeast and human pathogen Cryptococcus
RT   neoformans.";
RL   Science 307:1321-1324(2005).
CC   -!- FUNCTION: Catalyzes the reversible phosphorylation of S-methyl-5'-
CC       thioadenosine (MTA) to adenine and 5-methylthioribose-1-phosphate.
CC       Involved in the breakdown of MTA, a major by-product of polyamine
CC       biosynthesis. Responsible for the first step in the methionine salvage
CC       pathway after MTA has been generated from S-adenosylmethionine. Has
CC       broad substrate specificity with 6-aminopurine nucleosides as preferred
CC       substrates. {ECO:0000255|HAMAP-Rule:MF_03155}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=phosphate + S-methyl-5'-thioadenosine = adenine + S-methyl-5-
CC         thio-alpha-D-ribose 1-phosphate; Xref=Rhea:RHEA:11852,
CC         ChEBI:CHEBI:16708, ChEBI:CHEBI:17509, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:58533; EC=2.4.2.28; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_03155};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via salvage
CC       pathway; S-methyl-5-thio-alpha-D-ribose 1-phosphate from S-methyl-5'-
CC       thioadenosine (phosphorylase route): step 1/1. {ECO:0000255|HAMAP-
CC       Rule:MF_03155}.
CC   -!- SUBUNIT: Homotrimer. {ECO:0000255|HAMAP-Rule:MF_03155}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_03155}.
CC       Nucleus {ECO:0000255|HAMAP-Rule:MF_03155}.
CC   -!- SIMILARITY: Belongs to the PNP/MTAP phosphorylase family. MTAP
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_03155}.
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DR   EMBL; AE017341; AAW40807.1; -; Genomic_DNA.
DR   RefSeq; XP_566626.1; XM_566626.1.
DR   AlphaFoldDB; Q5KPU2; -.
DR   SMR; Q5KPU2; -.
DR   STRING; 5207.AAW40807; -.
DR   PaxDb; Q5KPU2; -.
DR   EnsemblFungi; AAW40807; AAW40807; CNA01530.
DR   GeneID; 3253655; -.
DR   KEGG; cne:CNA01530; -.
DR   eggNOG; KOG3985; Eukaryota.
DR   HOGENOM; CLU_054456_0_1_1; -.
DR   InParanoid; Q5KPU2; -.
DR   OMA; ADPFCPE; -.
DR   OrthoDB; 1616485at2759; -.
DR   UniPathway; UPA00904; UER00873.
DR   Proteomes; UP000002149; Chromosome 1.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0017061; F:S-methyl-5-thioadenosine phosphorylase activity; IBA:GO_Central.
DR   GO; GO:0019509; P:L-methionine salvage from methylthioadenosine; IBA:GO_Central.
DR   GO; GO:0006166; P:purine ribonucleoside salvage; IEA:UniProtKB-KW.
DR   CDD; cd09010; MTAP_SsMTAPII_like_MTIP; 1.
DR   Gene3D; 3.40.50.1580; -; 1.
DR   HAMAP; MF_01963; MTAP; 1.
DR   InterPro; IPR010044; MTAP.
DR   InterPro; IPR000845; Nucleoside_phosphorylase_d.
DR   InterPro; IPR035994; Nucleoside_phosphorylase_sf.
DR   InterPro; IPR018099; Purine_phosphorylase-2_CS.
DR   PANTHER; PTHR42679; PTHR42679; 1.
DR   Pfam; PF01048; PNP_UDP_1; 1.
DR   SUPFAM; SSF53167; SSF53167; 1.
DR   TIGRFAMs; TIGR01694; MTAP; 1.
DR   PROSITE; PS01240; PNP_MTAP_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Glycosyltransferase; Nucleus; Purine salvage;
KW   Reference proteome; Transferase.
FT   CHAIN           1..303
FT                   /note="S-methyl-5'-thioadenosine phosphorylase"
FT                   /id="PRO_0000415127"
FT   BINDING         15
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   BINDING         58..59
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   BINDING         91..92
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   BINDING         196
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   BINDING         197
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   BINDING         220..222
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   SITE            178
FT                   /note="Important for substrate specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   SITE            233
FT                   /note="Important for substrate specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
SQ   SEQUENCE   303 AA;  33121 MW;  852840F01808DC68 CRC64;
     MENNEKVLVG CIGGSGLYHL DNLTFVKTVH IETPWGKPSS PINISSLPSG ALVAFISRHG
     SHHSITPSEV PCRANIAALK HIGCEAIIAF SAVGSLREEI APGHFIIPDQ IIDRTKGIRE
     DTFFRGEGLV VHSMFGEPFS QKLNAFVAPR VEKILKETGD VVLHTGKTVV CMEGPAFSTR
     AESLMYRQWG GDIINMSVIP EAKLAREAEL DYTLICTSTD FDAWRTGYDP VTVEEVVKVL
     HTNAGNSRAV AAGILQDVHD VVVEGKTLTD IKGSMKFACV TRKDIQPEAS RKKLSYILPY
     FSD
 
 
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