ID A0A0A8X3X4_9BACI Unreviewed; 211 AA.
AC A0A0A8X3X4;
DT 04-MAR-2015, integrated into UniProtKB/TrEMBL.
DT 04-MAR-2015, sequence version 1.
DT 24-JAN-2024, entry version 33.
DE RecName: Full=Methylthioribulose-1-phosphate dehydratase {ECO:0000256|HAMAP-Rule:MF_01677};
DE Short=MTRu-1-P dehydratase {ECO:0000256|HAMAP-Rule:MF_01677};
DE EC=4.2.1.109 {ECO:0000256|HAMAP-Rule:MF_01677};
GN Name=mtnB {ECO:0000256|HAMAP-Rule:MF_01677};
GN ORFNames=SAMD00020551_1883 {ECO:0000313|EMBL:GAM13737.1};
OS Mesobacillus selenatarsenatis SF-1.
OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Mesobacillus.
OX NCBI_TaxID=1321606 {ECO:0000313|EMBL:GAM13737.1, ECO:0000313|Proteomes:UP000031014};
RN [1] {ECO:0000313|EMBL:GAM13737.1, ECO:0000313|Proteomes:UP000031014}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SF-1 {ECO:0000313|EMBL:GAM13737.1,
RC ECO:0000313|Proteomes:UP000031014};
RA Kuroda M., Sei K., Yamashita M., Ike M.;
RT "Whole genome shotgun sequence of Bacillus selenatarsenatis SF-1.";
RL Submitted (JUN-2013) to the EMBL/GenBank/DDBJ databases.
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:0000256|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:0000256|HAMAP-Rule:MF_01677};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01677};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000256|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:0000256|HAMAP-Rule:MF_01677}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_01677}.
CC -!- SIMILARITY: Belongs to the aldolase class II family. MtnB subfamily.
CC {ECO:0000256|HAMAP-Rule:MF_01677}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:GAM13737.1}.
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DR EMBL; BASE01000041; GAM13737.1; -; Genomic_DNA.
DR RefSeq; WP_041965564.1; NZ_BASE01000041.1.
DR AlphaFoldDB; A0A0A8X3X4; -.
DR STRING; 1321606.SAMD00020551_1883; -.
DR OrthoDB; 9805559at2; -.
DR UniPathway; UPA00904; UER00875.
DR Proteomes; UP000031014; Unassembled WGS sequence.
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; Class II aldolase/adducin N-terminal domain; 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 NCBIfam; TIGR03328; salvage_mtnB; 1.
DR PANTHER; PTHR10640; METHYLTHIORIBULOSE-1-PHOSPHATE DEHYDRATASE; 1.
DR PANTHER; PTHR10640:SF7; METHYLTHIORIBULOSE-1-PHOSPHATE DEHYDRATASE; 1.
DR Pfam; PF00596; Aldolase_II; 1.
DR SMART; SM01007; Aldolase_II; 1.
DR SUPFAM; SSF53639; AraD/HMP-PK domain-like; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_01677};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_01677};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01677};
KW Methionine biosynthesis {ECO:0000256|ARBA:ARBA00023167, ECO:0000256|HAMAP-
KW Rule:MF_01677}; Reference proteome {ECO:0000313|Proteomes:UP000031014};
KW Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|HAMAP-Rule:MF_01677}.
FT DOMAIN 9..197
FT /note="Class II aldolase/adducin N-terminal"
FT /evidence="ECO:0000259|SMART:SM01007"
FT BINDING 97
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01677"
FT BINDING 99
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01677"
SQ SEQUENCE 211 AA; 24032 MW; 57AF6F2D500C6965 CRC64;
MSILESKWEE LADVKAELAE RDWFMGTSGN LAIKVNSDPV QFLVTASGKD KRKRTDEDFL
LVDLFGRPVE DTHLKPSAET LLHVEVYRKT NAGCSLHVHT IDNNVISEVY GDRGEVQFQG
QELIKAFNIW EEDAVLKIPI IPNYSHIPTL AKAFSEHVEG DTGAVLIRNH GITVWGRNGF
EAKKILEATE FLFRYQLRLL EHKPFQLFKV V
//
