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MTNA_DESVV
ID   MTNA_DESVV              Reviewed;         350 AA.
AC   A1VHH2;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 83.
DE   RecName: Full=Methylthioribose-1-phosphate isomerase {ECO:0000255|HAMAP-Rule:MF_01678};
DE            Short=M1Pi {ECO:0000255|HAMAP-Rule:MF_01678};
DE            Short=MTR-1-P isomerase {ECO:0000255|HAMAP-Rule:MF_01678};
DE            EC=5.3.1.23 {ECO:0000255|HAMAP-Rule:MF_01678};
DE   AltName: Full=S-methyl-5-thioribose-1-phosphate isomerase {ECO:0000255|HAMAP-Rule:MF_01678};
GN   Name=mtnA {ECO:0000255|HAMAP-Rule:MF_01678}; OrderedLocusNames=Dvul_2877;
OS   Desulfovibrio vulgaris subsp. vulgaris (strain DP4).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfovibrionales;
OC   Desulfovibrionaceae; Desulfovibrio.
OX   NCBI_TaxID=391774;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DP4;
RX   PubMed=19737303; DOI=10.1111/j.1462-2920.2009.01946.x;
RA   Walker C.B., Stolyar S., Chivian D., Pinel N., Gabster J.A., Dehal P.S.,
RA   He Z., Yang Z.K., Yen H.C., Zhou J., Wall J.D., Hazen T.C., Arkin A.P.,
RA   Stahl D.A.;
RT   "Contribution of mobile genetic elements to Desulfovibrio vulgaris genome
RT   plasticity.";
RL   Environ. Microbiol. 11:2244-2252(2009).
CC   -!- FUNCTION: Catalyzes the interconversion of methylthioribose-1-phosphate
CC       (MTR-1-P) into methylthioribulose-1-phosphate (MTRu-1-P).
CC       {ECO:0000255|HAMAP-Rule:MF_01678}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=S-methyl-5-thio-alpha-D-ribose 1-phosphate = S-methyl-5-thio-
CC         D-ribulose 1-phosphate; Xref=Rhea:RHEA:19989, ChEBI:CHEBI:58533,
CC         ChEBI:CHEBI:58548; EC=5.3.1.23; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01678};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-methionine biosynthesis via salvage
CC       pathway; L-methionine from S-methyl-5-thio-alpha-D-ribose 1-phosphate:
CC       step 1/6. {ECO:0000255|HAMAP-Rule:MF_01678}.
CC   -!- SIMILARITY: Belongs to the eIF-2B alpha/beta/delta subunits family.
CC       MtnA subfamily. {ECO:0000305}.
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DR   EMBL; CP000527; ABM29888.1; -; Genomic_DNA.
DR   RefSeq; WP_010937395.1; NC_008751.1.
DR   AlphaFoldDB; A1VHH2; -.
DR   SMR; A1VHH2; -.
DR   EnsemblBacteria; ABM29888; ABM29888; Dvul_2877.
DR   KEGG; dvl:Dvul_2877; -.
DR   HOGENOM; CLU_016218_1_2_7; -.
DR   OMA; RLWVDET; -.
DR   UniPathway; UPA00904; UER00874.
DR   Proteomes; UP000009173; Chromosome.
DR   GO; GO:0046523; F:S-methyl-5-thioribose-1-phosphate isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019509; P:L-methionine salvage from methylthioadenosine; IEA:UniProtKB-UniPathway.
DR   GO; GO:0019284; P:L-methionine salvage from S-adenosylmethionine; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.20.120.420; -; 1.
DR   Gene3D; 3.40.50.10470; -; 1.
DR   HAMAP; MF_01678; Salvage_MtnA; 1.
DR   InterPro; IPR000649; IF-2B-related.
DR   InterPro; IPR005251; IF-M1Pi.
DR   InterPro; IPR042529; IF_2B-like_C.
DR   InterPro; IPR011559; Initiation_fac_2B_a/b/d.
DR   InterPro; IPR027363; M1Pi_N.
DR   InterPro; IPR037171; NagB/RpiA_transferase-like.
DR   Pfam; PF01008; IF-2B; 1.
DR   SUPFAM; SSF100950; SSF100950; 1.
DR   TIGRFAMs; TIGR00524; eIF-2B_rel; 1.
DR   TIGRFAMs; TIGR00512; salvage_mtnA; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Isomerase; Methionine biosynthesis.
FT   CHAIN           1..350
FT                   /note="Methylthioribose-1-phosphate isomerase"
FT                   /id="PRO_0000357180"
FT   ACT_SITE        238
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   BINDING         47..49
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   BINDING         90
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   BINDING         197
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   BINDING         248..249
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   SITE            158
FT                   /note="Transition state stabilizer"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
SQ   SEQUENCE   350 AA;  37901 MW;  7423148FBC950C57 CRC64;
     MERHIRYDAA SRSLILLDQR YLPTREEDFV CRNTDDIVTA LQVMVVRGAP AIGVTAAWGC
     VLAAYETAES GMETWRPVLD GLIERIANAR PTAVNLRWAV ERMRAAWHSL GRADLATLIT
     YWTNEAKRIH RDDIAINRRM GEHGAELIDD GDAVMTHCNA GALATAGYGT ALGVIRGAVE
     AGKNITVIAN ETRPFLQGAR LTAFELHEDG IPVTVACDNA CGLLMKRGMV QKVVVGADRI
     AANGDAANKI GTYSVALLAR EHGIPFYVAA PLSTIDRETP DGDHIPIENR TPTEVTHVGA
     TQITPDGVPV FNFAFDVTPA HLIAGIVTEM GVLRAPYRES IAEAFRKAGL
 
 
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