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LEU3_MYCBO
ID   LEU3_MYCBO              Reviewed;         336 AA.
AC   P94929; A0A1R3Y2U0; X2BM37;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1997, sequence version 1.
DT   03-AUG-2022, entry version 132.
DE   RecName: Full=3-isopropylmalate dehydrogenase {ECO:0000255|HAMAP-Rule:MF_01035, ECO:0000303|PubMed:9111927};
DE            EC=1.1.1.85 {ECO:0000255|HAMAP-Rule:MF_01035, ECO:0000305|PubMed:9111927};
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:0000303|PubMed:9111927}; OrderedLocusNames=BQ2027_MB3019C;
OS   Mycobacterium bovis (strain ATCC BAA-935 / AF2122/97).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; Mycobacterium tuberculosis complex.
OX   NCBI_TaxID=233413;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=BCG;
RX   PubMed=9111927; DOI=10.1080/15216549700201701;
RA   Han M.Y., Son M.Y., Lee S.H., Kim J.K., Huh J.S., Kim J.H., Choe I.S.,
RA   Chung T.W., Choe Y.K.;
RT   "Molecular cloning of the leuB genes from Mycobacterium bovis BCG and
RT   Mycobacterium tuberculosis.";
RL   Biochem. Mol. Biol. Int. 41:657-663(1997).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-935 / AF2122/97;
RX   PubMed=12788972; DOI=10.1073/pnas.1130426100;
RA   Garnier T., Eiglmeier K., Camus J.-C., Medina N., Mansoor H., Pryor M.,
RA   Duthoy S., Grondin S., Lacroix C., Monsempe C., Simon S., Harris B.,
RA   Atkin R., Doggett J., Mayes R., Keating L., Wheeler P.R., Parkhill J.,
RA   Barrell B.G., Cole S.T., Gordon S.V., Hewinson R.G.;
RT   "The complete genome sequence of Mycobacterium bovis.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:7877-7882(2003).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND GENOME REANNOTATION.
RC   STRAIN=ATCC BAA-935 / AF2122/97;
RX   PubMed=28385856; DOI=10.1128/genomea.00157-17;
RA   Malone K.M., Farrell D., Stuber T.P., Schubert O.T., Aebersold R.,
RA   Robbe-Austerman S., Gordon S.V.;
RT   "Updated reference genome sequence and annotation of Mycobacterium bovis
RT   AF2122/97.";
RL   Genome Announc. 5:E00157-E00157(2017).
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, ECO:0000305|PubMed:9111927};
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; U78886; AAC45173.1; -; Genomic_DNA.
DR   EMBL; LT708304; SIU01643.1; -; Genomic_DNA.
DR   RefSeq; NP_856664.1; NC_002945.3.
DR   RefSeq; WP_003415144.1; NC_002945.4.
DR   AlphaFoldDB; P94929; -.
DR   SMR; P94929; -.
DR   EnsemblBacteria; SIU01643; SIU01643; BQ2027_MB3019C.
DR   PATRIC; fig|233413.5.peg.3318; -.
DR   OMA; EYDLGAR; -.
DR   BRENDA; 1.1.1.85; 3494.
DR   UniPathway; UPA00048; UER00072.
DR   Proteomes; UP000001419; 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..336
FT                   /note="3-isopropylmalate dehydrogenase"
FT                   /id="PRO_0000083800"
FT   BINDING         87
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         97
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         121
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         211
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         211
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         235
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         239
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   BINDING         271..283
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   SITE            128
FT                   /note="Important for catalysis"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
FT   SITE            178
FT                   /note="Important for catalysis"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01035"
SQ   SEQUENCE   336 AA;  35272 MW;  03C95850A6CA51E2 CRC64;
     MKLAIIAGDG IGPEVTAEAV KVLDAVVPGV QKTSYDLGAR RFHATGEVLP DSVVAELRNH
     DAILLGAIGD PSVPSGVLER GLLLRLRFEL DHHINLRPAR LYPGVASPLS GNPGIDFVVV
     REGTEGPYTG NGGAIRVGTP NEVATEVSVN TAFGVRRVVA DAFERARRRR KHLTLVHKTN
     VLTLAGGLWL RTVDEVGECY PDVEVAYQHV DAATIHMITD PGRFDVIVTD NLFGDIITDL
     AAAVCGGIGL AASGNIDATR ANPSMFEPVH GSAPDIAGQG IADPTAAIMS VALLLSHLGE
     HDAAARVDRA VEAHLATRGS ERLATSDVGE RIAAAL
 
 
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