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MTNA_DESVH
ID   MTNA_DESVH              Reviewed;         350 AA.
AC   Q72FX9;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 99.
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=DVU_0084;
OS   Desulfovibrio vulgaris (strain ATCC 29579 / DSM 644 / NCIMB 8303 / VKM
OS   B-1760 / Hildenborough).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfovibrionales;
OC   Desulfovibrionaceae; Desulfovibrio.
OX   NCBI_TaxID=882;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29579 / DSM 644 / NCIMB 8303 / VKM B-1760 / Hildenborough;
RX   PubMed=15077118; DOI=10.1038/nbt959;
RA   Heidelberg J.F., Seshadri R., Haveman S.A., Hemme C.L., Paulsen I.T.,
RA   Kolonay J.F., Eisen J.A., Ward N.L., Methe B.A., Brinkac L.M.,
RA   Daugherty S.C., DeBoy R.T., Dodson R.J., Durkin A.S., Madupu R.,
RA   Nelson W.C., Sullivan S.A., Fouts D.E., Haft D.H., Selengut J.,
RA   Peterson J.D., Davidsen T.M., Zafar N., Zhou L., Radune D., Dimitrov G.,
RA   Hance M., Tran K., Khouri H.M., Gill J., Utterback T.R., Feldblyum T.V.,
RA   Wall J.D., Voordouw G., Fraser C.M.;
RT   "The genome sequence of the anaerobic, sulfate-reducing bacterium
RT   Desulfovibrio vulgaris Hildenborough.";
RL   Nat. Biotechnol. 22:554-559(2004).
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; AE017285; AAS94568.1; -; Genomic_DNA.
DR   RefSeq; WP_010937395.1; NZ_CABHLV010000001.1.
DR   RefSeq; YP_009309.1; NC_002937.3.
DR   AlphaFoldDB; Q72FX9; -.
DR   SMR; Q72FX9; -.
DR   STRING; 882.DVU_0084; -.
DR   PaxDb; Q72FX9; -.
DR   EnsemblBacteria; AAS94568; AAS94568; DVU_0084.
DR   KEGG; dvu:DVU_0084; -.
DR   PATRIC; fig|882.5.peg.84; -.
DR   eggNOG; COG0182; Bacteria.
DR   HOGENOM; CLU_016218_1_2_7; -.
DR   OMA; RLWVDET; -.
DR   PhylomeDB; Q72FX9; -.
DR   UniPathway; UPA00904; UER00874.
DR   Proteomes; UP000002194; 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;
KW   Reference proteome.
FT   CHAIN           1..350
FT                   /note="Methylthioribose-1-phosphate isomerase"
FT                   /id="PRO_0000357179"
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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