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MTNB_GLUDA
ID   MTNB_GLUDA              Reviewed;         205 AA.
AC   A9H8G1; B5ZI57;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   16-DEC-2008, sequence version 2.
DT   03-AUG-2022, entry version 81.
DE   RecName: Full=Methylthioribulose-1-phosphate dehydratase {ECO:0000255|HAMAP-Rule:MF_01677};
DE            Short=MTRu-1-P dehydratase {ECO:0000255|HAMAP-Rule:MF_01677};
DE            EC=4.2.1.109 {ECO:0000255|HAMAP-Rule:MF_01677};
GN   Name=mtnB {ECO:0000255|HAMAP-Rule:MF_01677};
GN   OrderedLocusNames=GDI0585, Gdia_1415;
OS   Gluconacetobacter diazotrophicus (strain ATCC 49037 / DSM 5601 / CCUG 37298
OS   / CIP 103539 / LMG 7603 / PAl5).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Acetobacteraceae; Gluconacetobacter.
OX   NCBI_TaxID=272568;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 49037 / DSM 5601 / CCUG 37298 / CIP 103539 / LMG 7603 / PAl5;
RX   PubMed=19775431; DOI=10.1186/1471-2164-10-450;
RA   Bertalan M., Albano R., de Padua V., Rouws L., Rojas C., Hemerly A.,
RA   Teixeira K., Schwab S., Araujo J., Oliveira A., Franca L., Magalhaes V.,
RA   Alqueres S., Cardoso A., Almeida W., Loureiro M.M., Nogueira E., Cidade D.,
RA   Oliveira D., Simao T., Macedo J., Valadao A., Dreschsel M., Freitas F.,
RA   Vidal M., Guedes H., Rodrigues E., Meneses C., Brioso P., Pozzer L.,
RA   Figueiredo D., Montano H., Junior J., de Souza Filho G.,
RA   Martin Quintana Flores V., Ferreira B., Branco A., Gonzalez P.,
RA   Guillobel H., Lemos M., Seibel L., Macedo J., Alves-Ferreira M.,
RA   Sachetto-Martins G., Coelho A., Santos E., Amaral G., Neves A.,
RA   Pacheco A.B., Carvalho D., Lery L., Bisch P., Rossle S.C., Urmenyi T.,
RA   Rael Pereira A., Silva R., Rondinelli E., von Kruger W., Martins O.,
RA   Baldani J.I., Ferreira P.C.;
RT   "Complete genome sequence of the sugarcane nitrogen-fixing endophyte
RT   Gluconacetobacter diazotrophicus Pal5.";
RL   BMC Genomics 10:450-450(2009).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 49037 / DSM 5601 / CCUG 37298 / CIP 103539 / LMG 7603 / PAl5;
RX   PubMed=21304715; DOI=10.4056/sigs.972221;
RA   Giongo A., Tyler H.L., Zipperer U.N., Triplett E.W.;
RT   "Two genome sequences of the same bacterial strain, Gluconacetobacter
RT   diazotrophicus PAl 5, suggest a new standard in genome sequence
RT   submission.";
RL   Stand. Genomic Sci. 2:309-317(2010).
CC   -!- FUNCTION: Catalyzes the dehydration of methylthioribulose-1-phosphate
CC       (MTRu-1-P) into 2,3-diketo-5-methylthiopentyl-1-phosphate (DK-MTP-1-P).
CC       {ECO:0000255|HAMAP-Rule:MF_01677}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=S-methyl-5-thio-D-ribulose 1-phosphate = 5-methylsulfanyl-2,3-
CC         dioxopentyl phosphate + H2O; Xref=Rhea:RHEA:15549, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:58548, ChEBI:CHEBI:58828; EC=4.2.1.109;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01677};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01677};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01677};
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 2/6. {ECO:0000255|HAMAP-Rule:MF_01677}.
CC   -!- SIMILARITY: Belongs to the aldolase class II family. MtnB subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01677}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ACI51195.1; Type=Erroneous initiation; Evidence={ECO:0000305};
CC       Sequence=CAP54528.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AM889285; CAP54528.1; ALT_INIT; Genomic_DNA.
DR   EMBL; CP001189; ACI51195.1; ALT_INIT; Genomic_DNA.
DR   AlphaFoldDB; A9H8G1; -.
DR   SMR; A9H8G1; -.
DR   STRING; 272568.GDI0585; -.
DR   EnsemblBacteria; ACI51195; ACI51195; Gdia_1415.
DR   EnsemblBacteria; CAP54528; CAP54528; GDI0585.
DR   KEGG; gdi:GDI0585; -.
DR   KEGG; gdj:Gdia_1415; -.
DR   eggNOG; COG0235; Bacteria.
DR   HOGENOM; CLU_006033_4_1_5; -.
DR   UniPathway; UPA00904; UER00875.
DR   Proteomes; UP000000736; Chromosome.
DR   Proteomes; UP000001176; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:InterPro.
DR   GO; GO:0046570; F:methylthioribulose 1-phosphate dehydratase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; 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; 3.40.225.10; -; 1.
DR   HAMAP; MF_01677; Salvage_MtnB; 1.
DR   InterPro; IPR001303; Aldolase_II/adducin_N.
DR   InterPro; IPR036409; Aldolase_II/adducin_N_sf.
DR   InterPro; IPR017714; MethylthioRu-1-P_deHdtase_MtnB.
DR   Pfam; PF00596; Aldolase_II; 1.
DR   SMART; SM01007; Aldolase_II; 1.
DR   SUPFAM; SSF53639; SSF53639; 1.
DR   TIGRFAMs; TIGR03328; salvage_mtnB; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Lyase; Metal-binding; Methionine biosynthesis;
KW   Reference proteome; Zinc.
FT   CHAIN           1..205
FT                   /note="Methylthioribulose-1-phosphate dehydratase"
FT                   /id="PRO_0000357081"
FT   BINDING         98
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01677"
FT   BINDING         100
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01677"
FT   CONFLICT        72
FT                   /note="A -> V (in Ref. 2; ACI51195)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        85
FT                   /note="H -> Q (in Ref. 2; ACI51195)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   205 AA;  22053 MW;  5A211E2A4758C369 CRC64;
     MISTDPWAGA VQDIIAAGRR MDRFGWVPAT AGNISRRLPD GRIAITRSGG HKGHLTADGV
     IEVTADGRAV RAGDRPSAET LLHCHVYEAS PDVGAVLHGH SVASTVLSMM EQGDAILLSG
     YEVLKVFEGQ QTHDTTVRLP VFDNDQDIAR LSGVVAPYLG RMPAGYVIRG HGVYVWGGTM
     DVALARLEGL EFLLACELER RKVAR
 
 
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