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LEU1_ACIAC
ID   LEU1_ACIAC              Reviewed;         512 AA.
AC   A1TRT4;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 92.
DE   RecName: Full=2-isopropylmalate synthase {ECO:0000255|HAMAP-Rule:MF_01025};
DE            EC=2.3.3.13 {ECO:0000255|HAMAP-Rule:MF_01025};
DE   AltName: Full=Alpha-IPM synthase {ECO:0000255|HAMAP-Rule:MF_01025};
DE   AltName: Full=Alpha-isopropylmalate synthase {ECO:0000255|HAMAP-Rule:MF_01025};
GN   Name=leuA {ECO:0000255|HAMAP-Rule:MF_01025}; OrderedLocusNames=Aave_3108;
OS   Acidovorax citrulli (strain AAC00-1) (Acidovorax avenae subsp. citrulli).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Comamonadaceae; Acidovorax.
OX   NCBI_TaxID=397945;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AAC00-1;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Dalin E., Tice H., Pitluck S., Kiss H., Brettin T.,
RA   Bruce D., Han C., Tapia R., Gilna P., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Kim E., Stahl D., Richardson P.;
RT   "Complete sequence of Acidovorax avenae subsp. citrulli AAC00-1.";
RL   Submitted (DEC-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the condensation of the acetyl group of acetyl-CoA
CC       with 3-methyl-2-oxobutanoate (2-oxoisovalerate) to form 3-carboxy-3-
CC       hydroxy-4-methylpentanoate (2-isopropylmalate). {ECO:0000255|HAMAP-
CC       Rule:MF_01025}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=3-methyl-2-oxobutanoate + acetyl-CoA + H2O = (2S)-2-
CC         isopropylmalate + CoA + H(+); Xref=Rhea:RHEA:21524, ChEBI:CHEBI:1178,
CC         ChEBI:CHEBI:11851, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:57287, ChEBI:CHEBI:57288; EC=2.3.3.13;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01025};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC       from 3-methyl-2-oxobutanoate: step 1/4. {ECO:0000255|HAMAP-
CC       Rule:MF_01025}.
CC   -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_01025}.
CC   -!- SIMILARITY: Belongs to the alpha-IPM synthase/homocitrate synthase
CC       family. LeuA type 1 subfamily. {ECO:0000255|HAMAP-Rule:MF_01025}.
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DR   EMBL; CP000512; ABM33672.1; -; Genomic_DNA.
DR   RefSeq; WP_011796182.1; NC_008752.1.
DR   AlphaFoldDB; A1TRT4; -.
DR   SMR; A1TRT4; -.
DR   STRING; 397945.Aave_3108; -.
DR   EnsemblBacteria; ABM33672; ABM33672; Aave_3108.
DR   KEGG; aav:Aave_3108; -.
DR   eggNOG; COG0119; Bacteria.
DR   HOGENOM; CLU_022158_0_1_4; -.
DR   OMA; NTMRMLV; -.
DR   OrthoDB; 840579at2; -.
DR   UniPathway; UPA00048; UER00070.
DR   Proteomes; UP000002596; Chromosome.
DR   GO; GO:0003852; F:2-isopropylmalate synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.20.20.70; -; 1.
DR   Gene3D; 3.30.160.270; -; 1.
DR   HAMAP; MF_01025; LeuA_type1; 1.
DR   InterPro; IPR013709; 2-isopropylmalate_synth_dimer.
DR   InterPro; IPR002034; AIPM/Hcit_synth_CS.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR036230; LeuA_allosteric_dom_sf.
DR   InterPro; IPR005671; LeuA_bact_synth.
DR   InterPro; IPR000891; PYR_CT.
DR   Pfam; PF00682; HMGL-like; 1.
DR   Pfam; PF08502; LeuA_dimer; 1.
DR   SMART; SM00917; LeuA_dimer; 1.
DR   SUPFAM; SSF110921; SSF110921; 1.
DR   TIGRFAMs; TIGR00973; leuA_bact; 1.
DR   PROSITE; PS00815; AIPM_HOMOCIT_SYNTH_1; 1.
DR   PROSITE; PS00816; AIPM_HOMOCIT_SYNTH_2; 1.
DR   PROSITE; PS50991; PYR_CT; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Branched-chain amino acid biosynthesis;
KW   Leucine biosynthesis; Reference proteome; Transferase.
FT   CHAIN           1..512
FT                   /note="2-isopropylmalate synthase"
FT                   /id="PRO_1000149116"
FT   DOMAIN          5..268
FT                   /note="Pyruvate carboxyltransferase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01151"
SQ   SEQUENCE   512 AA;  55193 MW;  50A4C9F21014EFCA CRC64;
     MSDKLIIFDT TLRDGEQSPG ASMTRDEKLR IARQLERLRV DVIEAGFAAS SNGDFEAVQA
     IAQAIKDSTV CSLSRANDRD IARAAEALKD AQRARIHTFI ATSPLHMEKK LRMTPEQVLE
     QAKQSVRFAR NLVADIEFSP EDGYRSEPDF LCRVLEAVIA EGATTINVPD TVGYAIPELY
     GNFIRNLRER IPNSDKAVWS VHCHNDLGMA VANSLAGVKI GGARQVECTI NGLGERAGNC
     SLEEIVMAVK TRRDYFGLEL GIDTQHIVAA SRMVSQTTGF VVQPNKAVVG ANAFAHASGI
     HQDGVLKARD TYEIMRAEDV GWTANKIVLG KLSGRNAFKQ RLQDLGVQLE SEADVNAAFL
     RFKELADRKS EIFDEDILAL VSGDATAGAG ERYGFVSLSQ RSETGERPHA AVVFTVDGKE
     VHGASEGNGP VDASLKAIES HVHSGAEMVL YSVNAISGST ESQGEVTVRL QDSGRVVNGV
     GADPDIVVAS AKAYLSALNK LQSKAERVAA QG
 
 
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