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MTNB_BACCR
ID   MTNB_BACCR              Reviewed;         212 AA.
AC   Q819E6;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   03-AUG-2022, entry version 94.
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}; OrderedLocusNames=BC_4038;
OS   Bacillus cereus (strain ATCC 14579 / DSM 31 / CCUG 7414 / JCM 2152 / NBRC
OS   15305 / NCIMB 9373 / NCTC 2599 / NRRL B-3711).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=226900;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 14579 / DSM 31 / CCUG 7414 / JCM 2152 / NBRC 15305 / NCIMB 9373
RC   / NCTC 2599 / NRRL B-3711;
RX   PubMed=12721630; DOI=10.1038/nature01582;
RA   Ivanova N., Sorokin A., Anderson I., Galleron N., Candelon B., Kapatral V.,
RA   Bhattacharyya A., Reznik G., Mikhailova N., Lapidus A., Chu L., Mazur M.,
RA   Goltsman E., Larsen N., D'Souza M., Walunas T., Grechkin Y., Pusch G.,
RA   Haselkorn R., Fonstein M., Ehrlich S.D., Overbeek R., Kyrpides N.C.;
RT   "Genome sequence of Bacillus cereus and comparative analysis with Bacillus
RT   anthracis.";
RL   Nature 423:87-91(2003).
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   -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_01677}.
CC   -!- SIMILARITY: Belongs to the aldolase class II family. MtnB subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01677}.
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DR   EMBL; AE016877; AAP10957.1; -; Genomic_DNA.
DR   RefSeq; NP_833756.1; NC_004722.1.
DR   RefSeq; WP_000811341.1; NZ_CP034551.1.
DR   AlphaFoldDB; Q819E6; -.
DR   SMR; Q819E6; -.
DR   STRING; 226900.BC_4038; -.
DR   EnsemblBacteria; AAP10957; AAP10957; BC_4038.
DR   GeneID; 67508674; -.
DR   KEGG; bce:BC4038; -.
DR   PATRIC; fig|226900.8.peg.4169; -.
DR   HOGENOM; CLU_006033_4_1_9; -.
DR   OMA; IRGHGLY; -.
DR   UniPathway; UPA00904; UER00875.
DR   Proteomes; UP000001417; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
DR   GO; GO:0046570; F:methylthioribulose 1-phosphate dehydratase activity; IBA:GO_Central.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0019509; P:L-methionine salvage from methylthioadenosine; IBA:GO_Central.
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   PANTHER; PTHR10640; PTHR10640; 1.
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..212
FT                   /note="Methylthioribulose-1-phosphate dehydratase"
FT                   /id="PRO_0000357065"
FT   BINDING         97
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01677"
FT   BINDING         99
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01677"
SQ   SEQUENCE   212 AA;  23897 MW;  0799156B0377AA41 CRC64;
     MKQLFRQWYD LSEIKKELTT RNWFPATSGN ISIKVSHEPL TFLITASGKD KTKTTPDDFL
     LVDHVGVPVL ETELRPSAET ILHTHIYNNT NAGCVLHVHT TDNNVITNLY SDAVTLQNQE
     IIKALDIWEE GATIHIPIIE NHAHIPTLGE NFRKHIQGDS GAVLIRNHGI TVWGRDSFDA
     KKRLEAYEFL FQFHIKLLSI QGGVSNGANS YS
 
 
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