ID D2QSS9_SPILD Unreviewed; 358 AA.
AC D2QSS9;
DT 02-MAR-2010, integrated into UniProtKB/TrEMBL.
DT 02-MAR-2010, sequence version 1.
DT 27-MAR-2024, entry version 86.
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=Slin_5898 {ECO:0000313|EMBL:ADB41861.1};
OS Spirosoma linguale (strain ATCC 33905 / DSM 74 / LMG 10896 / Claus 1).
OC Bacteria; Bacteroidota; Cytophagia; Cytophagales; Cytophagaceae; Spirosoma.
OX NCBI_TaxID=504472 {ECO:0000313|EMBL:ADB41861.1, ECO:0000313|Proteomes:UP000002028};
RN [1] {ECO:0000313|Proteomes:UP000002028}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 33905 / DSM 74 / LMG 10896
RC {ECO:0000313|Proteomes:UP000002028};
RG US DOE Joint Genome Institute (JGI-PGF);
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Kyrpides N., Mavromatis K.,
RA Mikhailova N., Ovchinnikova G., Saunders E., Brettin T., Detter J.C.,
RA Han C., Larimer F., Land M., Hauser L., Markowitz V., Cheng J.-F.,
RA Hugenholtz P., Woyke T., Wu D., Tindal B., Schutze A., Schneider S.,
RA Goker M., Klenk H.-P., Eisen J.A.;
RT "The complete chromosome of Spirosoma linguale DSM 74.";
RL Submitted (SEP-2009) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ADB41861.1, ECO:0000313|Proteomes:UP000002028}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 33905 / DSM 74 / LMG 10896
RC {ECO:0000313|Proteomes:UP000002028};
RX PubMed=21304700;
RA Lail K., Sikorski J., Saunders E., Lapidus A., Glavina Del Rio T.,
RA Copeland A., Tice H., Cheng J.-F., Lucas S., Nolan M., Bruce D.,
RA Goodwin L., Pitluck S., Ivanova N., Mavromatis K., Ovchinnikova G.,
RA Pati A., Chen A., Palaniappan K., Land M., Hauser L., Chang Y.-J.,
RA Jeffries C.D., Chain P., Brettin T., Detter J.C., Schuetze A., Rohde M.,
RA Tindall B.J., Goeker M., Bristow J., Eisen J.A., Markowitz V.,
RA Hugenholtz P., Kyrpides N.C., Klenk H.-P., Chen F.;
RT "Complete genome sequence of Spirosoma linguale type strain (1).";
RL Stand. Genomic Sci. 2:176-185(2010).
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}.
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DR EMBL; CP001769; ADB41861.1; -; Genomic_DNA.
DR AlphaFoldDB; D2QSS9; -.
DR STRING; 504472.Slin_5898; -.
DR KEGG; sli:Slin_5898; -.
DR eggNOG; COG0473; Bacteria.
DR HOGENOM; CLU_031953_0_3_10; -.
DR UniPathway; UPA00048; UER00072.
DR Proteomes; UP000002028; 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_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}.
FT DOMAIN 4..352
FT /note="Isopropylmalate dehydrogenase-like"
FT /evidence="ECO:0000259|SMART:SM01329"
FT BINDING 97
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 107
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 135
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 221
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 221
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 245
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT BINDING 249
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT SITE 142
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
FT SITE 189
FT /note="Important for catalysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01033"
SQ SEQUENCE 358 AA; 38800 MW; BCD8C0F6E7C0319C CRC64;
MKKHIVVIAG DGIGQEVTAV GKQVLDAIAK KYDHEFTYDT ALIGHEAIEA TGNPIPDETI
TKSKASDAIL FGAVGHPKYD NDPSAKVRPE QGLLGIRKAL GLYANLRPIK LFDELLSASS
IKPEILKGAD ILFFRELTGD VYFGERGRKD DGDTAFDTMI YSRYEVERIV IKAFDAAMTR
RRKLCSVDKA NVLESSRLWR EVVQEIAPRY PEVEVEHQFV DAAAMLLIKD PKRFDVVVTG
NLFGDILTDE ASQIAGSMGM LASASVGDTT GLYEPIHGSA HDITGKGVAN PLASVLSVAL
MLDISFGMKE EANAVVDAVD SVLKAGFRTR DIADATTASD KILGTQAMGE QILQRLTA
//
