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MTNA_PSEAB
ID   MTNA_PSEAB              Reviewed;         358 AA.
AC   Q02PX5;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   14-NOV-2006, sequence version 1.
DT   03-AUG-2022, entry version 80.
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=PA14_23250;
OS   Pseudomonas aeruginosa (strain UCBPP-PA14).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=208963;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UCBPP-PA14;
RX   PubMed=17038190; DOI=10.1186/gb-2006-7-10-r90;
RA   Lee D.G., Urbach J.M., Wu G., Liberati N.T., Feinbaum R.L., Miyata S.,
RA   Diggins L.T., He J., Saucier M., Deziel E., Friedman L., Li L., Grills G.,
RA   Montgomery K., Kucherlapati R., Rahme L.G., Ausubel F.M.;
RT   "Genomic analysis reveals that Pseudomonas aeruginosa virulence is
RT   combinatorial.";
RL   Genome Biol. 7:R90.1-R90.14(2006).
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; CP000438; ABJ12394.1; -; Genomic_DNA.
DR   RefSeq; WP_003091449.1; NZ_CP034244.1.
DR   AlphaFoldDB; Q02PX5; -.
DR   SMR; Q02PX5; -.
DR   PRIDE; Q02PX5; -.
DR   EnsemblBacteria; ABJ12394; ABJ12394; PA14_23250.
DR   KEGG; pau:PA14_23250; -.
DR   HOGENOM; CLU_016218_1_2_6; -.
DR   OMA; RLWVDET; -.
DR   BioCyc; PAER208963:G1G74-1935-MON; -.
DR   UniPathway; UPA00904; UER00874.
DR   Proteomes; UP000000653; 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..358
FT                   /note="Methylthioribose-1-phosphate isomerase"
FT                   /id="PRO_0000357221"
FT   ACT_SITE        246
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   BINDING         54..56
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   BINDING         96
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   BINDING         205
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   BINDING         256..257
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
FT   SITE            166
FT                   /note="Transition state stabilizer"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01678"
SQ   SEQUENCE   358 AA;  39425 MW;  03F0731E46126826 CRC64;
     MRERLLAAER VKAIEWRDGT LRLLDQRLLP QEEVWLEHES AAEVAKAIRD MVVRGAPAIG
     ISAAYGIVLG ARARLAQGGD WRAALEEDFR LLADSRPTAV NLFWALNRMR DRLERMKEGD
     QPLAVLEAEA ISIHESDREA NLTMAQLGME LIRKQQGSPQ NILTHCNTGA LATGGFGTAL
     GVIRAAHLEG LVNRIYADET RPWLQGSRLT AWELANEGIP VSLNVDSAAA HLMKTENITW
     VIVGADRITA NGDVANKIGT YQLAVNAMHH GVRFMVVAPS STIDMNLESG EDIPIEERDG
     RELLEIGGRR VAAEVDAYNP VFDVTPADLI DAIVTERGVV ERPDAERMAA LMSRKRLH
 
 
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