ID F4CR02_PSEUX Unreviewed; 346 AA.
AC F4CR02;
DT 28-JUN-2011, integrated into UniProtKB/TrEMBL.
DT 28-JUN-2011, sequence version 1.
DT 27-MAR-2024, entry version 66.
DE RecName: Full=3-isopropylmalate dehydrogenase {ECO:0000256|HAMAP-Rule:MF_01035};
DE EC=1.1.1.85 {ECO:0000256|HAMAP-Rule:MF_01035};
DE AltName: Full=3-IPM-DH {ECO:0000256|HAMAP-Rule:MF_01035};
DE AltName: Full=Beta-IPM dehydrogenase {ECO:0000256|HAMAP-Rule:MF_01035};
DE Short=IMDH {ECO:0000256|HAMAP-Rule:MF_01035};
GN Name=leuB {ECO:0000256|HAMAP-Rule:MF_01035};
GN OrderedLocusNames=Psed_1826 {ECO:0000313|EMBL:AEA24060.1};
OS Pseudonocardia dioxanivorans (strain ATCC 55486 / DSM 44775 / JCM 13855 /
OS CB1190).
OC Bacteria; Actinomycetota; Actinomycetes; Pseudonocardiales;
OC Pseudonocardiaceae; Pseudonocardia.
OX NCBI_TaxID=675635 {ECO:0000313|EMBL:AEA24060.1, ECO:0000313|Proteomes:UP000007809};
RN [1] {ECO:0000313|EMBL:AEA24060.1, ECO:0000313|Proteomes:UP000007809}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 55486 / DSM 44775 / JCM 13855 / CB1190
RC {ECO:0000313|Proteomes:UP000007809};
RX PubMed=21725009; DOI=10.1128/JB.00415-11;
RA Sales C.M., Mahendra S., Grostern A., Parales R.E., Goodwin L.A., Woyke T.,
RA Nolan M., Lapidus A., Chertkov O., Ovchinnikova G., Sczyrba A.,
RA Alvarez-Cohen L.;
RT "Genome sequence of the 1,4-dioxane-degrading Pseudonocardia dioxanivorans
RT strain CB1190.";
RL J. Bacteriol. 193:4549-4550(2011).
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_01035}.
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_01035};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01035};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01035};
CC Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_01035};
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|HAMAP-
CC Rule:MF_01035}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01035}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01035}.
CC -!- SIMILARITY: Belongs to the isocitrate and isopropylmalate
CC dehydrogenases family. LeuB type 2 subfamily. {ECO:0000256|HAMAP-
CC Rule:MF_01035}.
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DR EMBL; CP002593; AEA24060.1; -; Genomic_DNA.
DR RefSeq; WP_013673991.1; NC_015312.1.
DR AlphaFoldDB; F4CR02; -.
DR STRING; 675635.Psed_1826; -.
DR KEGG; pdx:Psed_1826; -.
DR eggNOG; COG0473; Bacteria.
DR HOGENOM; CLU_031953_0_1_11; -.
DR OrthoDB; 5289857at2; -.
DR UniPathway; UPA00048; UER00072.
DR Proteomes; UP000007809; Chromosome.
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_01035; LeuB_type2; 1.
DR InterPro; IPR019818; IsoCit/isopropylmalate_DH_CS.
DR InterPro; IPR024084; IsoPropMal-DH-like_dom.
DR InterPro; IPR023698; LeuB_actb.
DR PANTHER; PTHR43275; D-MALATE DEHYDROGENASE [DECARBOXYLATING]; 1.
DR PANTHER; PTHR43275:SF1; D-MALATE DEHYDROGENASE [DECARBOXYLATING]; 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|HAMAP-Rule:MF_01035};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|HAMAP-Rule:MF_01035};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_01035};
KW Leucine biosynthesis {ECO:0000256|ARBA:ARBA00022430, ECO:0000256|HAMAP-
KW Rule:MF_01035}; Magnesium {ECO:0000256|HAMAP-Rule:MF_01035};
KW Manganese {ECO:0000256|ARBA:ARBA00023211, ECO:0000256|HAMAP-Rule:MF_01035};
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01035};
KW NAD {ECO:0000256|HAMAP-Rule:MF_01035};
KW Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_01035,
KW ECO:0000313|EMBL:AEA24060.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000007809}.
FT DOMAIN 2..334
FT /note="Isopropylmalate dehydrogenase-like"
FT /evidence="ECO:0000259|SMART:SM01329"
FT BINDING 87
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 97
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 121
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 212
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 212
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 236
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 240
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 272..284
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT SITE 128
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT SITE 179
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
SQ SEQUENCE 346 AA; 36620 MW; CE6523C6AF888D48 CRC64;
MRLAVIPGDG IGPEVIDEAL KVLNEVAPGA ETTNYDLGAA RWHSTGELLP ESVLTELRGH
DAILLGAVGD PSVPSGILER GLLLRLRFEL DHHVNLRPAR LYPGVRGPLA GNPEIDLVVV
REGTEGPYVG TGGLLRKDTP QEVATEVSTN TAFGIERVVR DAFARAERRP RKHLTLVHKT
NVLAFAGALW SRIVEEVSLE HPDVTVAYQH VDSTTIHLVT DPSRYDVIVT DNLFGDILTD
LAAAVTGGIG LAASGNIDAS GRNPSMFEPV HGSAPDIAGQ GIADPTAAVL SVALLLDHLG
RSDAARRIEA AVAFDLATRD HGANSHTRSI GDRLAALVSR QASAPA
//