ID   MTNB_BLAGS              Reviewed;         241 AA.
AC   C5JIC2; A0A179UG16;
DT   20-APR-2010, integrated into UniProtKB/Swiss-Prot.
DT   28-JUL-2009, sequence version 1.
DT   03-AUG-2022, entry version 61.
DE   RecName: Full=Methylthioribulose-1-phosphate dehydratase {ECO:0000255|HAMAP-Rule:MF_03116};
DE            Short=MTRu-1-P dehydratase {ECO:0000255|HAMAP-Rule:MF_03116};
DE            EC=4.2.1.109 {ECO:0000255|HAMAP-Rule:MF_03116};
GN   Name=MDE1 {ECO:0000255|HAMAP-Rule:MF_03116}; ORFNames=BDBG_02251;
OS   Blastomyces gilchristii (strain SLH14081) (Blastomyces dermatitidis).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC   Eurotiomycetidae; Onygenales; Ajellomycetaceae; Blastomyces.
OX   NCBI_TaxID=559298;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SLH14081;
RX   PubMed=26439490; DOI=10.1371/journal.pgen.1005493;
RA   Munoz J.F., Gauthier G.M., Desjardins C.A., Gallo J.E., Holder J.,
RA   Sullivan T.D., Marty A.J., Carmen J.C., Chen Z., Ding L., Gujja S.,
RA   Magrini V., Misas E., Mitreva M., Priest M., Saif S., Whiston E.A.,
RA   Young S., Zeng Q., Goldman W.E., Mardis E.R., Taylor J.W., McEwen J.G.,
RA   Clay O.K., Klein B.S., Cuomo C.A.;
RT   "The dynamic genome and transcriptome of the human fungal pathogen
RT   Blastomyces and close relative Emmonsia.";
RL   PLoS Genet. 11:E1005493-E1005493(2015).
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_03116}.
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_03116};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_03116};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_03116};
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_03116}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_03116}.
CC   -!- SIMILARITY: Belongs to the aldolase class II family. MtnB subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_03116}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; GG657450; OAT05951.1; -; Genomic_DNA.
DR   RefSeq; XP_002627580.1; XM_002627534.1.
DR   AlphaFoldDB; C5JIC2; -.
DR   SMR; C5JIC2; -.
DR   STRING; 559298.C5JIC2; -.
DR   EnsemblFungi; OAT05951; OAT05951; BDBG_02251.
DR   GeneID; 8506638; -.
DR   KEGG; bgh:BDBG_02251; -.
DR   VEuPathDB; FungiDB:BDBG_02251; -.
DR   HOGENOM; CLU_006033_4_0_1; -.
DR   UniPathway; UPA00904; UER00875.
DR   Proteomes; UP000002038; Unassembled WGS sequence.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
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_03116; Salvage_MtnB_euk; 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   InterPro; IPR027514; Salvage_MtnB_euk.
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; Cytoplasm; Lyase; Metal-binding;
KW   Methionine biosynthesis; Reference proteome; Zinc.
FT   CHAIN           1..241
FT                   /note="Methylthioribulose-1-phosphate dehydratase"
FT                   /id="PRO_0000393803"
FT   REGION          1..20
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        1..18
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        146
FT                   /note="Proton donor/acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03116"
FT   BINDING         100
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03116"
FT   BINDING         117
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03116"
FT   BINDING         119
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03116"
FT   BINDING         202
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_03116"
SQ   SEQUENCE   241 AA;  27013 MW;  70519A62D95B179B CRC64;
     MSAIKDERNN DHLVQSHDPE HPANLIPALC RNFYGHGWVT GTGGGASIKR DNHIFIAPSG
     VQKELIQPHN IFVLQYPTPK YPPSARQYIR KPLELKPSAC TPLFLAAFDR GAGCCIHTHS
     QWAVLVTLLV EREKGLEGCF EISNIEQIKG IPKGKGKGMM GFFDTLKIPI IENTAFEEDL
     TSSLEEAMEK YPDTYAVLVR RHGIYVWGDD VAKAKTQCES LDYLFQLAVE MHKLGLPWVK
     P