ID A0A0Q8RQI1_9BURK Unreviewed; 355 AA.
AC A0A0Q8RQI1;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, sequence version 1.
DT 24-JAN-2024, entry version 37.
DE RecName: Full=3-isopropylmalate dehydrogenase {ECO:0000256|HAMAP-Rule:MF_01033};
DE EC=1.1.1.85 {ECO:0000256|HAMAP-Rule:MF_01033};
DE AltName: Full=3-IPM-DH {ECO:0000256|HAMAP-Rule:MF_01033};
DE AltName: Full=Beta-IPM dehydrogenase {ECO:0000256|HAMAP-Rule:MF_01033};
DE Short=IMDH {ECO:0000256|HAMAP-Rule:MF_01033};
GN Name=leuB {ECO:0000256|HAMAP-Rule:MF_01033};
GN ORFNames=ASE26_01420 {ECO:0000313|EMBL:KRC03523.1};
OS Duganella sp. Root198D2.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Oxalobacteraceae; Telluria group; Duganella.
OX NCBI_TaxID=1736489 {ECO:0000313|EMBL:KRC03523.1, ECO:0000313|Proteomes:UP000051728};
RN [1] {ECO:0000313|EMBL:KRC03523.1, ECO:0000313|Proteomes:UP000051728}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Root198D2 {ECO:0000313|EMBL:KRC03523.1,
RC ECO:0000313|Proteomes:UP000051728};
RA Gilbert D.G.;
RL Submitted (OCT-2015) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:KRC03523.1, ECO:0000313|Proteomes:UP000051728}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Root198D2 {ECO:0000313|EMBL:KRC03523.1,
RC ECO:0000313|Proteomes:UP000051728};
RA Schulze-Lefert P.;
RT "Functional overlap of the Arabidopsis leaf and root microbiotas.";
RL Submitted (NOV-2015) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the oxidation of 3-carboxy-2-hydroxy-4-
CC methylpentanoate (3-isopropylmalate) to 3-carboxy-4-methyl-2-
CC oxopentanoate. The product decarboxylates to 4-methyl-2 oxopentanoate.
CC {ECO:0000256|HAMAP-Rule:MF_01033, ECO:0000256|RuleBase:RU004445}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2R,3S)-3-isopropylmalate + NAD(+) = 4-methyl-2-oxopentanoate
CC + CO2 + NADH; Xref=Rhea:RHEA:32271, ChEBI:CHEBI:16526,
CC ChEBI:CHEBI:17865, ChEBI:CHEBI:35121, ChEBI:CHEBI:57540,
CC ChEBI:CHEBI:57945; EC=1.1.1.85;
CC Evidence={ECO:0000256|ARBA:ARBA00000624, ECO:0000256|HAMAP-
CC Rule:MF_01033, ECO:0000256|RuleBase:RU004445};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01033,
CC ECO:0000256|RuleBase:RU004445};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01033,
CC ECO:0000256|RuleBase:RU004445};
CC Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_01033, ECO:0000256|RuleBase:RU004445};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|ARBA:ARBA00001936};
CC -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC from 3-methyl-2-oxobutanoate: step 3/4. {ECO:0000256|ARBA:ARBA00004762,
CC ECO:0000256|HAMAP-Rule:MF_01033, ECO:0000256|RuleBase:RU004445}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738, ECO:0000256|HAMAP-
CC Rule:MF_01033, ECO:0000256|RuleBase:RU004445}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01033}.
CC -!- SIMILARITY: Belongs to the isocitrate and isopropylmalate
CC dehydrogenases family. LeuB type 1 subfamily.
CC {ECO:0000256|ARBA:ARBA00008319, ECO:0000256|HAMAP-Rule:MF_01033}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01033}.
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:KRC03523.1}.
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DR EMBL; LMIC01000001; KRC03523.1; -; Genomic_DNA.
DR RefSeq; WP_057245477.1; NZ_LMIC01000001.1.
DR AlphaFoldDB; A0A0Q8RQI1; -.
DR UniPathway; UPA00048; UER00072.
DR Proteomes; UP000051728; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0003862; F:3-isopropylmalate dehydrogenase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:InterPro.
DR GO; GO:0051287; F:NAD binding; IEA:InterPro.
DR GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.718.10; Isopropylmalate Dehydrogenase; 1.
DR HAMAP; MF_01033; LeuB_type1; 1.
DR InterPro; IPR019818; IsoCit/isopropylmalate_DH_CS.
DR InterPro; IPR024084; IsoPropMal-DH-like_dom.
DR InterPro; IPR004429; Isopropylmalate_DH.
DR NCBIfam; TIGR00169; leuB; 1.
DR PANTHER; PTHR42979; 3-ISOPROPYLMALATE DEHYDROGENASE; 1.
DR PANTHER; PTHR42979:SF1; 3-ISOPROPYLMALATE DEHYDROGENASE; 1.
DR Pfam; PF00180; Iso_dh; 1.
DR SMART; SM01329; Iso_dh; 1.
DR SUPFAM; SSF53659; Isocitrate/Isopropylmalate dehydrogenase-like; 1.
DR PROSITE; PS00470; IDH_IMDH; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_01033};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|HAMAP-Rule:MF_01033};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01033};
KW Leucine biosynthesis {ECO:0000256|ARBA:ARBA00022430, ECO:0000256|HAMAP-
KW Rule:MF_01033};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_01033};
KW Manganese {ECO:0000256|HAMAP-Rule:MF_01033};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01033};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_01033};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_01033}; Reference proteome {ECO:0000313|Proteomes:UP000051728}.
FT DOMAIN 2..351
FT /note="Isopropylmalate dehydrogenase-like"
FT /evidence="ECO:0000259|SMART:SM01329"
FT BINDING 90
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 100
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 128
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 222
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 222
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 246
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 250
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 280..292
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT SITE 135
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT SITE 190
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
SQ SEQUENCE 355 AA; 38127 MW; 8D34041FE8F14B1B CRC64;
MKIAILPGDG IGPEIVSQAV KVLHALDEKF EMETAPVGGA GYEAKGHPLP EETLALAKAA
DAVLFGAVGD WKYDTLDRPL RPEQAILGLR KNLGLFGNLR PAILYPELAG ASTLKPEVVS
GLDILIVREL TGDIYFGQPR GLRECPDGPF KGQREGFDTM RYAEGEIRRI AHVAFQAAQK
RGKRLTSVDK ANVLETFQFW KDIVTDVHKE YPDVALDHMY VDNAAMQLVR APKKFDVIVT
GNMFGDILSD AAAMLTGSIG MLPSASLDAN NKGLYEPSHG SAPDIAGKGI ANPLATILSA
AMMLRYSLGR AEQADRIETA VKKVLAQGLR TPDIYEAGTT KVGTSQMGDA VVAAL
//
