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LEU3_KAZHU
ID   LEU3_KAZHU              Reviewed;         363 AA.
AC   Q6PY58;
DT   31-AUG-2004, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=3-isopropylmalate dehydrogenase;
DE            Short=3-IPM-DH;
DE            Short=IMDH;
DE            EC=1.1.1.85;
DE   AltName: Full=Beta-IPM dehydrogenase;
GN   Name=LEU2;
OS   Kazachstania humilis (Sour dough yeast) (Candida humilis).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC   Saccharomycetales; Saccharomycetaceae; Kazachstania.
OX   NCBI_TaxID=51915;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=CBS 8195;
RA   Turakainen H., Korhola M.;
RT   "Cloning, sequencing and use as a chromosomal probe of the LEU2 gene from
RT   the sour dough yeast Candida milleri.";
RL   Submitted (MAR-2004) 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   -!- 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   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035; Evidence={ECO:0000250};
CC       Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit. {ECO:0000250};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC       from 3-methyl-2-oxobutanoate: step 3/4.
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm.
CC   -!- SIMILARITY: Belongs to the isocitrate and isopropylmalate
CC       dehydrogenases family. {ECO:0000305}.
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DR   EMBL; AY571337; AAS77418.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q6PY58; -.
DR   SMR; Q6PY58; -.
DR   BRENDA; 1.1.1.85; 8583.
DR   UniPathway; UPA00048; UER00072.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003862; F:3-isopropylmalate dehydrogenase activity; IEA:UniProtKB-EC.
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-UniPathway.
DR   InterPro; IPR019818; IsoCit/isopropylmalate_DH_CS.
DR   InterPro; IPR024084; IsoPropMal-DH-like_dom.
DR   InterPro; IPR004429; Isopropylmalate_DH.
DR   PANTHER; PTHR42979; PTHR42979; 1.
DR   Pfam; PF00180; Iso_dh; 1.
DR   SMART; SM01329; Iso_dh; 1.
DR   TIGRFAMs; TIGR00169; leuB; 1.
DR   PROSITE; PS00470; IDH_IMDH; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Branched-chain amino acid biosynthesis; Cytoplasm;
KW   Leucine biosynthesis; Magnesium; Manganese; Metal-binding; NAD;
KW   Oxidoreductase.
FT   CHAIN           1..363
FT                   /note="3-isopropylmalate dehydrogenase"
FT                   /id="PRO_0000083605"
FT   BINDING         79..90
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000250"
FT   BINDING         97
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         107
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         136
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         225
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250"
FT   BINDING         225
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250"
FT   BINDING         250
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250"
FT   BINDING         254
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250"
FT   BINDING         289..300
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000250"
FT   SITE            143
FT                   /note="Important for catalysis"
FT                   /evidence="ECO:0000250"
FT   SITE            192
FT                   /note="Important for catalysis"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   363 AA;  39017 MW;  69C4AA375FE444DE CRC64;
     MSTTKTIVVL PGDHVGTEIT EEATKVLNAI AEKRPNIKFD FQHHLIGGAA IDATGVPLPD
     EALEASKKAD AVLLGAVGGP KWGTGDVRPE QGLLKIRKEL GLYANLRPCN FAFDSLLDMS
     PLKPEYARGT DFTVVRELVC GIYFGKRKED TGDGVTWDSE QYSVPEVQRI TRMAASLALQ
     HNPPLPIWSL DKANVLASSR LWRKTVEETI KNEFPTLSVQ HQLIDSAAMI LVKNPTKLNG
     LVITSNMFGD IISDEASVIP GSLGLLPSAS LASPPDTNKA FGLYEPCHGS APDLPKGKVN
     PVATILSVAM MLKLSLDMVE EGIAVEKAVR KVIDNGIRTA DLRGTNSTTE VGDAIAAAVK
     EFL
 
 
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