ID Q02YX8_LACLS Unreviewed; 343 AA.
AC Q02YX8;
DT 14-NOV-2006, integrated into UniProtKB/TrEMBL.
DT 14-NOV-2006, sequence version 1.
DT 27-MAR-2024, entry version 122.
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 OrderedLocusNames=LACR_1320 {ECO:0000313|EMBL:ABJ72844.1};
OS Lactococcus lactis subsp. cremoris (strain SK11).
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Streptococcaceae;
OC Lactococcus; Lactococcus cremoris subsp. cremoris.
OX NCBI_TaxID=272622 {ECO:0000313|EMBL:ABJ72844.1, ECO:0000313|Proteomes:UP000000240};
RN [1] {ECO:0000313|EMBL:ABJ72844.1, ECO:0000313|Proteomes:UP000000240}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SK11 {ECO:0000313|EMBL:ABJ72844.1,
RC ECO:0000313|Proteomes:UP000000240};
RX PubMed=17030793; DOI=10.1073/pnas.0607117103;
RA Makarova K., Slesarev A., Wolf Y., Sorokin A., Mirkin B., Koonin E.,
RA Pavlov A., Pavlova N., Karamychev V., Polouchine N., Shakhova V.,
RA Grigoriev I., Lou Y., Rohksar D., Lucas S., Huang K., Goodstein D.M.,
RA Hawkins T., Plengvidhya V., Welker D., Hughes J., Goh Y., Benson A.,
RA Baldwin K., Lee J.H., Diaz-Muniz I., Dosti B., Smeianov V., Wechter W.,
RA Barabote R., Lorca G., Altermann E., Barrangou R., Ganesan B., Xie Y.,
RA Rawsthorne H., Tamir D., Parker C., Breidt F., Broadbent J., Hutkins R.,
RA O'Sullivan D., Steele J., Unlu G., Saier M., Klaenhammer T., Richardson P.,
RA Kozyavkin S., Weimer B., Mills D.;
RT "Comparative genomics of the lactic acid bacteria.";
RL Proc. Natl. Acad. Sci. U.S.A. 103:15611-15616(2006).
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}.
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; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_01033};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01033};
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01033};
CC Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_01033};
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_01033}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01033}.
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. {ECO:0000256|HAMAP-
CC Rule:MF_01033}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01033}.
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DR EMBL; CP000425; ABJ72844.1; -; Genomic_DNA.
DR RefSeq; WP_011676139.1; NC_008527.1.
DR AlphaFoldDB; Q02YX8; -.
DR KEGG; llc:LACR_1320; -.
DR HOGENOM; CLU_031953_0_3_9; -.
DR UniPathway; UPA00048; UER00072.
DR Proteomes; UP000000240; 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:0046872; F:metal ion binding; IEA:UniProtKB-KW.
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; 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.
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}.
FT DOMAIN 4..339
FT /note="Isopropylmalate dehydrogenase-like"
FT /evidence="ECO:0000259|SMART:SM01329"
FT BINDING 94
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 104
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 130
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 215
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 215
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 239
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 243
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 272..284
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT SITE 137
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT SITE 183
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
SQ SEQUENCE 343 AA; 37307 MW; C226D005114F6970 CRC64;
MTKKIVTLSG DGIGPEIINA GLQVLSAVAE KIGFDYELDA KDFGGAAIDK FGVPLPDETL
EAARNADAIL HAAIGDPKFD GAEIRPEQGL LKIRKELGLF ANVRPLKIYE PLKHLSPIKN
VENVDFVTIR ELTGGVYFGE HTLEADKARD INDYTRIEIE RVVRFAFETA QKRPRKQVTS
VDKQNVLATS KLWRKTVDEV AKDYPDVTYE HQLVDSCAML LITNPQKFDV IVTENLFGDI
LTDEASSLAG TLGCSASSSH GAGTAFYEPI HGSAPDIAGK GIANPVSMIL SVAMMLRESF
ELENGAVLIE RAVEKTLADG IFTQDLGGSA TTDEMTKAIL ERL
//
