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MTNA_OLEA2
ID   MTNA_OLEA2              Reviewed;         355 AA.
AC   Q317L9;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-DEC-2005, 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=Dde_0076;
OS   Oleidesulfovibrio alaskensis (strain ATCC BAA-1058 / DSM 17464 / G20)
OS   (Desulfovibrio alaskensis).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Desulfovibrionales;
OC   Desulfovibrionaceae; Oleidesulfovibrio.
OX   NCBI_TaxID=207559;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1058 / DSM 17464 / G20;
RX   PubMed=21685289; DOI=10.1128/jb.05400-11;
RA   Hauser L.J., Land M.L., Brown S.D., Larimer F., Keller K.L.,
RA   Rapp-Giles B.J., Price M.N., Lin M., Bruce D.C., Detter J.C., Tapia R.,
RA   Han C.S., Goodwin L.A., Cheng J.F., Pitluck S., Copeland A., Lucas S.,
RA   Nolan M., Lapidus A.L., Palumbo A.V., Wall J.D.;
RT   "Complete genome sequence and updated annotation of Desulfovibrio
RT   alaskensis G20.";
RL   J. Bacteriol. 193:4268-4269(2011).
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; CP000112; ABB36877.1; -; Genomic_DNA.
DR   RefSeq; WP_011366261.1; NC_007519.1.
DR   AlphaFoldDB; Q317L9; -.
DR   SMR; Q317L9; -.
DR   STRING; 207559.Dde_0076; -.
DR   EnsemblBacteria; ABB36877; ABB36877; Dde_0076.
DR   KEGG; dde:Dde_0076; -.
DR   eggNOG; COG0182; Bacteria.
DR   HOGENOM; CLU_016218_1_2_7; -.
DR   OMA; RLWVDET; -.
DR   OrthoDB; 1290468at2; -.
DR   UniPathway; UPA00904; UER00874.
DR   Proteomes; UP000002710; 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..355
FT                   /note="Methylthioribose-1-phosphate isomerase"
FT                   /id="PRO_0000357178"
FT   ACT_SITE        240
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         91
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   BINDING         199
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   BINDING         250..251
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   SITE            159
FT                   /note="Transition state stabilizer"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
SQ   SEQUENCE   355 AA;  38380 MW;  7F004AB825087C51 CRC64;
     METHIRYSRQ DRTLILLDQR VLPTVEEDFY CNDVADTIYA LQTMVVRGAP AIGVTAAYGC
     CLAAYEAGHP APHAQWQKEL DTLLEKLAQA RPTAVNLRWA VERMRSVWKS MGDPDLNTLI
     ARWLDEAEAI HEEDKSINRA IGRHGATLIQ DNDCIMTHCN AGALATAGYG TALGVVRGAV
     DAGRTGITVI ANETRPFLQG ARLTAYELHK DGIPVTVACD NACGLLMQRG MVQKVVVGAD
     RIAANGDAAN KIGTYSVALL AREHGIPFYV AAPLSTIDRA TPSGKQIPIE ERPAEEVTHV
     GETRITPEGV PVYNYAFDVT PAHLIAGIVT EQGVLRPPYT ASIARAFAAA DKDRS
 
 
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