ID Q1GEA2_RUEST Unreviewed; 527 AA.
AC Q1GEA2;
DT 27-JUN-2006, integrated into UniProtKB/TrEMBL.
DT 27-JUN-2006, sequence version 1.
DT 27-MAR-2024, entry version 122.
DE RecName: Full=2-isopropylmalate synthase {ECO:0000256|ARBA:ARBA00018198, ECO:0000256|HAMAP-Rule:MF_01025};
DE EC=2.3.3.13 {ECO:0000256|ARBA:ARBA00012973, ECO:0000256|HAMAP-Rule:MF_01025};
DE AltName: Full=Alpha-IPM synthase {ECO:0000256|ARBA:ARBA00029993, ECO:0000256|HAMAP-Rule:MF_01025};
DE AltName: Full=Alpha-isopropylmalate synthase {ECO:0000256|HAMAP-Rule:MF_01025};
GN Name=leuA {ECO:0000256|HAMAP-Rule:MF_01025};
GN OrderedLocusNames=TM1040_2282 {ECO:0000313|EMBL:ABF65014.1};
OS Ruegeria sp. (strain TM1040) (Silicibacter sp.).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Roseobacteraceae; Ruegeria.
OX NCBI_TaxID=292414 {ECO:0000313|EMBL:ABF65014.1, ECO:0000313|Proteomes:UP000000636};
RN [1] {ECO:0000313|Proteomes:UP000000636}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TM1040 {ECO:0000313|Proteomes:UP000000636};
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Brettin T., Bruce D., Han C., Tapia R., Goodwin L., Thompson L.S.,
RA Gilna P., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E.,
RA Belas R., Moran M.A., Buchan A., Gonzalez J.M., Schell M.A., Sun F.,
RA Richardson P.;
RT "Complete sequence of chromosome of Silicibacter sp. TM1040.";
RL Submitted (MAY-2006) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ABF65014.1, ECO:0000313|Proteomes:UP000000636}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TM1040 {ECO:0000313|EMBL:ABF65014.1,
RC ECO:0000313|Proteomes:UP000000636};
RX PubMed=17526795; DOI=10.1128/AEM.02580-06;
RA Moran M.A., Belas R., Schell M.A., Gonzalez J.M., Sun F., Sun S.,
RA Binder B.J., Edmonds J., Ye W., Orcutt B., Howard E.C., Meile C.,
RA Palefsky W., Goesmann A., Ren Q., Paulsen I., Ulrich L.E., Thompson L.S.,
RA Saunders E., Buchan A.;
RT "Ecological genomics of marine Roseobacters.";
RL Appl. Environ. Microbiol. 73:4559-4569(2007).
CC -!- FUNCTION: Catalyzes the condensation of the acetyl group of acetyl-CoA
CC with 3-methyl-2-oxobutanoate (2-ketoisovalerate) to form 3-carboxy-3-
CC hydroxy-4-methylpentanoate (2-isopropylmalate). {ECO:0000256|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:0000256|HAMAP-Rule:MF_01025};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01025};
CC -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC from 3-methyl-2-oxobutanoate: step 1/4. {ECO:0000256|ARBA:ARBA00004689,
CC ECO:0000256|HAMAP-Rule:MF_01025}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01025}.
CC -!- SIMILARITY: Belongs to the alpha-IPM synthase/homocitrate synthase
CC family. LeuA type 1 subfamily. {ECO:0000256|ARBA:ARBA00009396,
CC ECO:0000256|HAMAP-Rule:MF_01025}.
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DR EMBL; CP000377; ABF65014.1; -; Genomic_DNA.
DR RefSeq; WP_011539603.1; NC_008044.1.
DR AlphaFoldDB; Q1GEA2; -.
DR STRING; 292414.TM1040_2282; -.
DR KEGG; sit:TM1040_2282; -.
DR eggNOG; COG0119; Bacteria.
DR HOGENOM; CLU_022158_0_1_5; -.
DR OrthoDB; 9803573at2; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000000636; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-UniRule.
DR GO; GO:0003852; F:2-isopropylmalate synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0003985; F:acetyl-CoA C-acetyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd07940; DRE_TIM_IPMS; 1.
DR Gene3D; 1.10.238.260; -; 1.
DR Gene3D; 3.30.160.270; -; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 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 NCBIfam; TIGR00973; leuA_bact; 1.
DR PANTHER; PTHR10277:SF9; 2-ISOPROPYLMALATE SYNTHASE 1, CHLOROPLASTIC-RELATED; 1.
DR PANTHER; PTHR10277; HOMOCITRATE SYNTHASE-RELATED; 1.
DR Pfam; PF00682; HMGL-like; 1.
DR Pfam; PF08502; LeuA_dimer; 1.
DR SMART; SM00917; LeuA_dimer; 1.
DR SUPFAM; SSF110921; 2-isopropylmalate synthase LeuA, allosteric (dimerisation) domain; 1.
DR SUPFAM; SSF51569; Aldolase; 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 Acyltransferase {ECO:0000313|EMBL:ABF65014.1};
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_01025};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|HAMAP-Rule:MF_01025};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01025};
KW Leucine biosynthesis {ECO:0000256|ARBA:ARBA00022430, ECO:0000256|HAMAP-
KW Rule:MF_01025};
KW Manganese {ECO:0000256|ARBA:ARBA00023211, ECO:0000256|HAMAP-Rule:MF_01025};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01025}; Reference proteome {ECO:0000313|Proteomes:UP000000636};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01025}.
FT DOMAIN 14..275
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000259|PROSITE:PS50991"
FT REGION 398..527
FT /note="Regulatory domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 23
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 210
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 212
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 246
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
SQ SEQUENCE 527 AA; 57488 MW; 1B59A069AB9EB157 CRC64;
MTSKTDTVNQ QDRVLIFDTT LRDGEQSPGA TMTHDEKLEI AELLDDMGVD IIEAGFPIAS
EGDFKAVSEI AERSKNSVIC GLARANFKDI DRCAEAVRKA AKPRIHTFIG TSPLHRAIPN
LTMDEMAERI HDTVTHARNL VDNVQWSPMD ATRTEWDYLC RVIEIAIKAG ATTINIPDTV
GYTAPRESAD LIRRLIETVP GADEIIFATH CHNDLGMATA NSLAAVEAGA RQIECTINGL
GERAGNTALE EVVMAMRVRN DIMPFQTGID TKKIMHISRR VATVSGFNVQ FNKAIVGKNA
FAHESGIHQD GMLKNKETFE IMRPEDVGLA GTSLPLGKHS GRAALRDKLS SLGFEIGDNQ
LKDVFVRFKE LADRKKEVFD DDIIALMRTS GDEDDHLKLV SMKVVCGTGG PAESTVEMEV
DGKDVTETAE GDGPVDATFK AIRKIHPNAA HLQLYQVHAV TEGTDAQATV SVRLEEDGVI
ATGDSANTDT VVASAMAYID ALNRLIVRRD KMGEGADSRE ISYKDVD
//
