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LEU3_RHOE4
ID   LEU3_RHOE4              Reviewed;         337 AA.
AC   C0ZXM4;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   26-MAY-2009, sequence version 1.
DT   03-AUG-2022, entry version 75.
DE   RecName: Full=3-isopropylmalate dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01035};
DE            EC=1.1.1.85 {ECO:0000255|HAMAP-Rule:MF_01035};
DE   AltName: Full=3-IPM-DH {ECO:0000255|HAMAP-Rule:MF_01035};
DE   AltName: Full=Beta-IPM dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01035};
DE            Short=IMDH {ECO:0000255|HAMAP-Rule:MF_01035};
GN   Name=leuB {ECO:0000255|HAMAP-Rule:MF_01035}; OrderedLocusNames=RER_24010;
OS   Rhodococcus erythropolis (strain PR4 / NBRC 100887).
OC   Bacteria; Actinobacteria; Corynebacteriales; Nocardiaceae; Rhodococcus;
OC   Rhodococcus erythropolis group.
OX   NCBI_TaxID=234621;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PR4 / NBRC 100887;
RA   Takarada H., Sekine M., Hosoyama A., Yamada R., Fujisawa T., Omata S.,
RA   Shimizu A., Tsukatani N., Tanikawa S., Fujita N., Harayama S.;
RT   "Comparison of the complete genome sequences of Rhodococcus erythropolis
RT   PR4 and Rhodococcus opacus B4.";
RL   Submitted (MAR-2005) 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       {ECO:0000255|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; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01035};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01035};
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01035};
CC       Note=Binds 1 Mg(2+) or Mn(2+) ion per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_01035};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC       from 3-methyl-2-oxobutanoate: step 3/4. {ECO:0000255|HAMAP-
CC       Rule:MF_01035}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01035}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01035}.
CC   -!- SIMILARITY: Belongs to the isocitrate and isopropylmalate
CC       dehydrogenases family. LeuB type 2 subfamily. {ECO:0000255|HAMAP-
CC       Rule:MF_01035}.
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DR   EMBL; AP008957; BAH33109.1; -; Genomic_DNA.
DR   RefSeq; WP_020907259.1; NC_012490.1.
DR   AlphaFoldDB; C0ZXM4; -.
DR   SMR; C0ZXM4; -.
DR   STRING; 234621.RER_24010; -.
DR   EnsemblBacteria; BAH33109; BAH33109; RER_24010.
DR   KEGG; rer:RER_24010; -.
DR   eggNOG; COG0473; Bacteria.
DR   HOGENOM; CLU_031953_0_1_11; -.
DR   OMA; EYDLGAR; -.
DR   UniPathway; UPA00048; UER00072.
DR   Proteomes; UP000002204; 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   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   Pfam; PF00180; Iso_dh; 1.
DR   SMART; SM01329; Iso_dh; 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..337
FT                   /note="3-isopropylmalate dehydrogenase"
FT                   /id="PRO_1000213377"
FT   BINDING         88
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         98
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         122
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         212
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         212
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         236
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         240
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         272..284
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   SITE            129
FT                   /note="Important for catalysis"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   SITE            179
FT                   /note="Important for catalysis"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
SQ   SEQUENCE   337 AA;  35536 MW;  570ACF3C605B4ED0 CRC64;
     MKLAVIPGDG IGVEVTAEAL KVLGKLVPDL ETTEYDLGAR RYNATGELLP ADELDQIRQH
     DAILLGAIGD PRIVAPGILE RGLLLNMRFQ LDHHVNLRPA QLYPGALSPL AAQPEIDFVV
     VREGTEGPYT GNGGAIRVGT DHEIATEVSI NTWFGAERVV RYAFALAQTR SKHLTLIHKT
     NVLSNAGAIW TRAIETVGAE YPDVETAYCH IDAATIYMVT DPSRFDVIVT DNLFGDIITD
     LAGAVTGGIG LAASGNIDAS GTNPSMFEPV HGSAPDIAGK GIADPTAAIL SAALLLRHLG
     REDDAARVEA VVAADLATRG EGPISTTEIG DRITAAL
 
 
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