MTAP_CANAL
ID MTAP_CANAL Reviewed; 344 AA.
AC Q59ST1; A0A1D8PJS6;
DT 25-JAN-2012, integrated into UniProtKB/Swiss-Prot.
DT 26-APR-2005, sequence version 1.
DT 03-AUG-2022, entry version 100.
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 Name=MEU1 {ECO:0000255|HAMAP-Rule:MF_03155};
GN OrderedLocusNames=CAALFM_C303790WA; ORFNames=CaO19.14200, CaO19.6938;
OS Candida albicans (strain SC5314 / ATCC MYA-2876) (Yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Debaryomycetaceae; Candida/Lodderomyces clade; Candida.
OX NCBI_TaxID=237561;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SC5314 / ATCC MYA-2876;
RX PubMed=15123810; DOI=10.1073/pnas.0401648101;
RA Jones T., Federspiel N.A., Chibana H., Dungan J., Kalman S., Magee B.B.,
RA Newport G., Thorstenson Y.R., Agabian N., Magee P.T., Davis R.W.,
RA Scherer S.;
RT "The diploid genome sequence of Candida albicans.";
RL Proc. Natl. Acad. Sci. U.S.A. 101:7329-7334(2004).
RN [2]
RP GENOME REANNOTATION.
RC STRAIN=SC5314 / ATCC MYA-2876;
RX PubMed=17419877; DOI=10.1186/gb-2007-8-4-r52;
RA van het Hoog M., Rast T.J., Martchenko M., Grindle S., Dignard D.,
RA Hogues H., Cuomo C., Berriman M., Scherer S., Magee B.B., Whiteway M.,
RA Chibana H., Nantel A., Magee P.T.;
RT "Assembly of the Candida albicans genome into sixteen supercontigs aligned
RT on the eight chromosomes.";
RL Genome Biol. 8:RESEARCH52.1-RESEARCH52.12(2007).
RN [3]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND GENOME REANNOTATION.
RC STRAIN=SC5314 / ATCC MYA-2876;
RX PubMed=24025428; DOI=10.1186/gb-2013-14-9-r97;
RA Muzzey D., Schwartz K., Weissman J.S., Sherlock G.;
RT "Assembly of a phased diploid Candida albicans genome facilitates allele-
RT specific measurements and provides a simple model for repeat and indel
RT structure.";
RL Genome Biol. 14:RESEARCH97.1-RESEARCH97.14(2013).
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}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP017625; AOW28406.1; -; Genomic_DNA.
DR RefSeq; XP_712739.1; XM_707646.2.
DR AlphaFoldDB; Q59ST1; -.
DR SMR; Q59ST1; -.
DR STRING; 237561.Q59ST1; -.
DR GeneID; 3645635; -.
DR KEGG; cal:CAALFM_C303790WA; -.
DR CGD; CAL0000179927; MEU1.
DR VEuPathDB; FungiDB:C3_03790W_A; -.
DR eggNOG; KOG3985; Eukaryota.
DR HOGENOM; CLU_054456_0_1_1; -.
DR InParanoid; Q59ST1; -.
DR OMA; ADPFCPE; -.
DR OrthoDB; 1616485at2759; -.
DR UniPathway; UPA00904; UER00873.
DR PRO; PR:Q59ST1; -.
DR Proteomes; UP000000559; Chromosome 3.
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..344
FT /note="S-methyl-5'-thioadenosine phosphorylase"
FT /id="PRO_0000415124"
FT BINDING 45
FT /ligand="phosphate"
FT /ligand_id="ChEBI:CHEBI:43474"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT BINDING 88..89
FT /ligand="phosphate"
FT /ligand_id="ChEBI:CHEBI:43474"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT BINDING 121..122
FT /ligand="phosphate"
FT /ligand_id="ChEBI:CHEBI:43474"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT BINDING 238
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT BINDING 239
FT /ligand="phosphate"
FT /ligand_id="ChEBI:CHEBI:43474"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT BINDING 262..264
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT SITE 220
FT /note="Important for substrate specificity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT SITE 275
FT /note="Important for substrate specificity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
SQ SEQUENCE 344 AA; 37618 MW; 28EA961C08D0C36F CRC64;
MVKLVLKGNN LSKLIKMSVH REKIDLAKLP HHYDGPVTLA VIGGTGLYDL PNLHPVARLT
ISTPWGFPSG SITISKTDSG FPVAFLARHG AHHDLLPSDV PSRANIAALK RLGVKAIIAF
SAVGSLQQEI KPRDFVLPTQ IIDRTKGIRP STFFEKGFVA HAMFGEPFDL KLNKLISDAI
PSKGFLEGFD TDGTPVLHTK ENTNNGEDLT IICMEGPQFS TRAESRLYRS WGGSVINMSV
LPEAKLAREA EIAYQMICMS TDYDSWNESE EPVTVETVVG NLKANSANAC KLAAKLIDEF
AAKGGEIGKD LQGSMKYAVS TSPHGVKKEL LEKMHFLFPG YWEV
