ID   MTNB_SORC5              Reviewed;         212 AA.
AC   A9FCX7;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-FEB-2008, sequence version 1.
DT   03-AUG-2022, entry version 74.
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=sce1549;
OS   Sorangium cellulosum (strain So ce56) (Polyangium cellulosum (strain So
OS   ce56)).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Myxococcales; Sorangiineae;
OC   Polyangiaceae; Sorangium.
OX   NCBI_TaxID=448385;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=So ce56;
RX   PubMed=17965706; DOI=10.1038/nbt1354;
RA   Schneiker S., Perlova O., Kaiser O., Gerth K., Alici A., Altmeyer M.O.,
RA   Bartels D., Bekel T., Beyer S., Bode E., Bode H.B., Bolten C.J.,
RA   Choudhuri J.V., Doss S., Elnakady Y.A., Frank B., Gaigalat L., Goesmann A.,
RA   Groeger C., Gross F., Jelsbak L., Jelsbak L., Kalinowski J., Kegler C.,
RA   Knauber T., Konietzny S., Kopp M., Krause L., Krug D., Linke B., Mahmud T.,
RA   Martinez-Arias R., McHardy A.C., Merai M., Meyer F., Mormann S.,
RA   Munoz-Dorado J., Perez J., Pradella S., Rachid S., Raddatz G., Rosenau F.,
RA   Rueckert C., Sasse F., Scharfe M., Schuster S.C., Suen G.,
RA   Treuner-Lange A., Velicer G.J., Vorholter F.-J., Weissman K.J., Welch R.D.,
RA   Wenzel S.C., Whitworth D.E., Wilhelm S., Wittmann C., Bloecker H.,
RA   Puehler A., Mueller R.;
RT   "Complete genome sequence of the myxobacterium Sorangium cellulosum.";
RL   Nat. Biotechnol. 25:1281-1289(2007).
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}.
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DR   EMBL; AM746676; CAN91707.1; -; Genomic_DNA.
DR   RefSeq; WP_012234184.1; NC_010162.1.
DR   AlphaFoldDB; A9FCX7; -.
DR   SMR; A9FCX7; -.
DR   STRING; 448385.sce1549; -.
DR   EnsemblBacteria; CAN91707; CAN91707; sce1549.
DR   KEGG; scl:sce1549; -.
DR   eggNOG; COG0235; Bacteria.
DR   HOGENOM; CLU_006033_4_1_7; -.
DR   OMA; IRGHGLY; -.
DR   OrthoDB; 599627at2; -.
DR   BioCyc; SCEL448385:SCE_RS07990-MON; -.
DR   UniPathway; UPA00904; UER00875.
DR   Proteomes; UP000002139; 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..212
FT                   /note="Methylthioribulose-1-phosphate dehydratase"
FT                   /id="PRO_0000357106"
FT   BINDING         103
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01677"
FT   BINDING         105
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01677"
SQ   SEQUENCE   212 AA;  22421 MW;  BB8A12F948047316 CRC64;
     MSVRGTSFAS FSSVAAELIE LSRFCHERGW TPATSGNFSA RLGDGSLAIT ASGRPKGALG
     VSDIVVVNAD GRLTGPSPAR PSAETALHCQ LYRHSSEIGA VAHTHSRAAT VLSRRCAQEG
     YVTLSGYEVA KALSGMTTHT ATVLLPVFVN TQDIRRLAED VDAFMSAHPP VYGYLIAGHG
     LYTWGSDIAS TIRHIEAIEF MLDCALLEGG LS