ID   MTAP_AEDAE              Reviewed;         279 AA.
AC   Q16MW6;
DT   25-JAN-2012, integrated into UniProtKB/Swiss-Prot.
DT   25-JUL-2006, sequence version 1.
DT   27-MAR-2024, entry version 101.
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   ORFNames=AAEL012172, AAEL012179;
OS   Aedes aegypti (Yellowfever mosquito) (Culex aegypti).
OC   Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC   Neoptera; Endopterygota; Diptera; Nematocera; Culicoidea; Culicidae;
OC   Culicinae; Aedini; Aedes; Stegomyia.
OX   NCBI_TaxID=7159;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LVPib12;
RX   PubMed=17510324; DOI=10.1126/science.1138878;
RA   Nene V., Wortman J.R., Lawson D., Haas B.J., Kodira C.D., Tu Z.J.,
RA   Loftus B.J., Xi Z., Megy K., Grabherr M., Ren Q., Zdobnov E.M., Lobo N.F.,
RA   Campbell K.S., Brown S.E., Bonaldo M.F., Zhu J., Sinkins S.P.,
RA   Hogenkamp D.G., Amedeo P., Arensburger P., Atkinson P.W., Bidwell S.L.,
RA   Biedler J., Birney E., Bruggner R.V., Costas J., Coy M.R., Crabtree J.,
RA   Crawford M., DeBruyn B., DeCaprio D., Eiglmeier K., Eisenstadt E.,
RA   El-Dorry H., Gelbart W.M., Gomes S.L., Hammond M., Hannick L.I.,
RA   Hogan J.R., Holmes M.H., Jaffe D., Johnston S.J., Kennedy R.C., Koo H.,
RA   Kravitz S., Kriventseva E.V., Kulp D., Labutti K., Lee E., Li S.,
RA   Lovin D.D., Mao C., Mauceli E., Menck C.F., Miller J.R., Montgomery P.,
RA   Mori A., Nascimento A.L., Naveira H.F., Nusbaum C., O'Leary S.B., Orvis J.,
RA   Pertea M., Quesneville H., Reidenbach K.R., Rogers Y.-H.C., Roth C.W.,
RA   Schneider J.R., Schatz M., Shumway M., Stanke M., Stinson E.O.,
RA   Tubio J.M.C., Vanzee J.P., Verjovski-Almeida S., Werner D., White O.R.,
RA   Wyder S., Zeng Q., Zhao Q., Zhao Y., Hill C.A., Raikhel A.S., Soares M.B.,
RA   Knudson D.L., Lee N.H., Galagan J., Salzberg S.L., Paulsen I.T.,
RA   Dimopoulos G., Collins F.H., Bruce B., Fraser-Liggett C.M., Severson D.W.;
RT   "Genome sequence of Aedes aegypti, a major arbovirus vector.";
RL   Science 316:1718-1723(2007).
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; CH477847; EAT35677.1; -; Genomic_DNA.
DR   EMBL; CH477847; EAT35678.1; -; Genomic_DNA.
DR   RefSeq; XP_001655912.1; XM_001655862.1.
DR   RefSeq; XP_001655913.1; XM_001655863.1.
DR   AlphaFoldDB; Q16MW6; -.
DR   SMR; Q16MW6; -.
DR   STRING; 7159.Q16MW6; -.
DR   PaxDb; 7159-AAEL012172-PA; -.
DR   EnsemblMetazoa; AAEL012172-RB; AAEL012172-PB; AAEL012172.
DR   EnsemblMetazoa; AAEL012172-RC; AAEL012172-PC; AAEL012172.
DR   GeneID; 5575922; -.
DR   KEGG; aag:5575922; -.
DR   VEuPathDB; VectorBase:AAEL012172; -.
DR   eggNOG; KOG3985; Eukaryota.
DR   HOGENOM; CLU_054456_0_0_1; -.
DR   InParanoid; Q16MW6; -.
DR   OMA; ADPFCPE; -.
DR   OrthoDB; 168017at2759; -.
DR   PhylomeDB; Q16MW6; -.
DR   UniPathway; UPA00904; UER00873.
DR   Proteomes; UP000008820; Chromosome 2.
DR   Proteomes; UP000682892; Unassembled WGS sequence.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0017061; F:S-methyl-5-thioadenosine phosphorylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019509; P:L-methionine salvage from methylthioadenosine; IEA:UniProtKB-UniRule.
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; Nucleoside phosphorylase domain; 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   NCBIfam; TIGR01694; MTAP; 1.
DR   PANTHER; PTHR42679; S-METHYL-5'-THIOADENOSINE PHOSPHORYLASE; 1.
DR   PANTHER; PTHR42679:SF2; S-METHYL-5'-THIOADENOSINE PHOSPHORYLASE; 1.
DR   Pfam; PF01048; PNP_UDP_1; 1.
DR   SUPFAM; SSF53167; Purine and uridine phosphorylases; 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..279
FT                   /note="S-methyl-5'-thioadenosine phosphorylase"
FT                   /id="PRO_0000415117"
FT   BINDING         13
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   BINDING         55..56
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         191
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   BINDING         192
FT                   /ligand="phosphate"
FT                   /ligand_id="ChEBI:CHEBI:43474"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   BINDING         215..217
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   SITE            173
FT                   /note="Important for substrate specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
FT   SITE            228
FT                   /note="Important for substrate specificity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03155"
SQ   SEQUENCE   279 AA;  30396 MW;  D4C9933EE90815D2 CRC64;
     MRPAIKIGII GGSGLDDSQI LESRSEKVVS THFGNPSDVL IEGKIAGVDC VLLARHGRNH
     SIMPSNVNYR ANIWALKTVG CTHVIVSTAT GSLQERIHPG DLVIPDNFID RTTKRAQTFY
     DGNDMLVGVC HVPMEPAFCS RTREVLIETA KELGLVGVHN KGTVVTIEGP RFSSKAESNL
     FRQWGADLVN MTLVPEVVLA KEAGLCYAAI AMATDYDCWR DCGENVNVAD VMATFKKNVT
     KVTQLITAVI PKIAEMDWTE TIGELTKTVN GSIMLPHAY
//