ID A0A0N7A015_9MICO Unreviewed; 355 AA.
AC A0A0N7A015;
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_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 ORFNames=NI26_10005 {ECO:0000313|EMBL:AIV40414.1};
OS Curtobacterium sp. MR_MD2014.
OC Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Microbacteriaceae;
OC Curtobacterium.
OX NCBI_TaxID=1561023 {ECO:0000313|EMBL:AIV40414.1, ECO:0000313|Proteomes:UP000069933};
RN [1] {ECO:0000313|Proteomes:UP000069933}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MR_MD2014 {ECO:0000313|Proteomes:UP000069933};
RA Mariita R.M., Bhatgnagar S., Hanselmann K., Hossain M.J., Dawson S.C.,
RA Korlach J., Boitano M., Liles M.R., Moss A.G., Leadbetter J.R.,
RA Newman D.K.;
RT "Isolation and characterization of species affiliated with family
RT Actinomycetaceae.";
RL Submitted (OCT-2014) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:AIV40414.1, ECO:0000313|Proteomes:UP000069933}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MR_MD2014 {ECO:0000313|EMBL:AIV40414.1,
RC ECO:0000313|Proteomes:UP000069933};
RX PubMed=26722011;
RA Mariita R.M., Bhatnagar S., Hanselmann K., Hossain M.J., Korlach J.,
RA Boitano M., Roberts R.J., Liles M.R., Moss A.G., Leadbetter J.R.,
RA Newman D.K., Dawson S.C.;
RT "Complete Genome Sequence of Curtobacterium sp. Strain MR_MD2014, Isolated
RT from Topsoil in Woods Hole, Massachusetts.";
RL Genome Announc. 3:0-0(2015).
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; CP009755; AIV40414.1; -; Genomic_DNA.
DR RefSeq; WP_066654909.1; NZ_CP009755.1.
DR AlphaFoldDB; A0A0N7A015; -.
DR STRING; 1561023.NI26_10005; -.
DR KEGG; cum:NI26_10005; -.
DR PATRIC; fig|1561023.3.peg.2071; -.
DR OrthoDB; 5289857at2; -.
DR UniPathway; UPA00048; UER00072.
DR Proteomes; UP000069933; 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:AIV40414.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000069933}.
FT DOMAIN 6..344
FT /note="Isopropylmalate dehydrogenase-like"
FT /evidence="ECO:0000259|SMART:SM01329"
FT BINDING 98
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 108
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 132
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 223
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 223
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 247
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 251
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT BINDING 283..295
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT SITE 139
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
FT SITE 190
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01035"
SQ SEQUENCE 355 AA; 37106 MW; E55F85327505CF0C CRC64;
MAQTLKLAVV RGDGIGPEVV DEALKVLHAV LPDDLDVQET AFSLGAARYL ETGDILTEDD
MSAIAEHDAI LLGAVGGDPR DPRLAGGIIE RGLLLKLRFA FDHYVNLRPT TVYSSVASPL
ADPGAVDFVV VREGTEGPYV GNGGAIRVGT PHEIATEVSL NTAHGVERVV RYAFDLASRR
PRKHLTLVHK SNVLVHAGSL WQRTVAAVAE EHPDVTVDYQ HVDAVTIHMV REPGRFDVIV
TDNLFGDIIT DLAGAISGGI GLAASGNINP DGTFPSMFEP VHGSAPDIAG QQVADPTAAV
LSVALLLDHL GRADLAAAVT QAVEADLASR GTTPRSTAEV GDAIAAAVAA RTTTA
//
