ID A0A161U3Y2_9MICO Unreviewed; 583 AA.
AC A0A161U3Y2;
DT 06-JUL-2016, integrated into UniProtKB/TrEMBL.
DT 06-JUL-2016, sequence version 1.
DT 27-MAR-2024, entry version 29.
DE RecName: Full=2-isopropylmalate synthase {ECO:0000256|ARBA:ARBA00012973, ECO:0000256|HAMAP-Rule:MF_00572};
DE EC=2.3.3.13 {ECO:0000256|ARBA:ARBA00012973, ECO:0000256|HAMAP-Rule:MF_00572};
DE AltName: Full=Alpha-IPM synthase {ECO:0000256|HAMAP-Rule:MF_00572};
DE AltName: Full=Alpha-isopropylmalate synthase {ECO:0000256|HAMAP-Rule:MF_00572};
GN Name=leuA_1 {ECO:0000313|EMBL:KZE90571.1};
GN Synonyms=leuA {ECO:0000256|HAMAP-Rule:MF_00572};
GN ORFNames=AVP41_00090 {ECO:0000313|EMBL:KZE90571.1};
OS Microbacterium sp. TNHR37B.
OC Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Microbacteriaceae;
OC Microbacterium.
OX NCBI_TaxID=1775956 {ECO:0000313|EMBL:KZE90571.1, ECO:0000313|Proteomes:UP000076535};
RN [1] {ECO:0000313|EMBL:KZE90571.1, ECO:0000313|Proteomes:UP000076535}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=TNHR37B {ECO:0000313|EMBL:KZE90571.1,
RC ECO:0000313|Proteomes:UP000076535};
RA Adelskov J., Patel B.K.;
RT "Draft Genome Sequence of Microbacterium sp. TNHR37B isolated from the
RT Great Artesian Basin of Australia.";
RL Submitted (JAN-2016) 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-ketoisovalerate) to form 3-carboxy-3-
CC hydroxy-4-methylpentanoate (2-isopropylmalate). {ECO:0000256|HAMAP-
CC Rule:MF_00572}.
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|ARBA:ARBA00000064, ECO:0000256|HAMAP-
CC Rule:MF_00572};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00572};
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_00572}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00572}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00572}.
CC -!- SIMILARITY: Belongs to the alpha-IPM synthase/homocitrate synthase
CC family. LeuA type 2 subfamily. {ECO:0000256|ARBA:ARBA00009767,
CC ECO:0000256|HAMAP-Rule:MF_00572}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KZE90571.1}.
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DR EMBL; LQGV01000001; KZE90571.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A161U3Y2; -.
DR STRING; 1775956.AVP41_00090; -.
DR PATRIC; fig|1775956.3.peg.95; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000076535; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
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:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd07942; DRE_TIM_LeuA; 1.
DR Gene3D; 3.30.160.270; -; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR HAMAP; MF_00572; LeuA_type2; 1.
DR InterPro; IPR013709; 2-isopropylmalate_synth_dimer.
DR InterPro; IPR002034; AIPM/Hcit_synth_CS.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR005668; IPM_Synthase.
DR InterPro; IPR036230; LeuA_allosteric_dom_sf.
DR InterPro; IPR039371; LeuA_N_DRE-TIM.
DR InterPro; IPR000891; PYR_CT.
DR PANTHER; PTHR46911; -; 1.
DR PANTHER; PTHR46911:SF1; 2-ISOPROPYLMALATE SYNTHASE; 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 SUPFAM; SSF89000; post-HMGL domain-like; 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 {ECO:0000256|HAMAP-Rule:MF_00572};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|HAMAP-Rule:MF_00572};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00572};
KW Leucine biosynthesis {ECO:0000256|HAMAP-Rule:MF_00572};
KW Magnesium {ECO:0000256|HAMAP-Rule:MF_00572};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00572}; Reference proteome {ECO:0000313|Proteomes:UP000076535};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00572}.
FT DOMAIN 49..322
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000259|PROSITE:PS50991"
FT REGION 464..583
FT /note="Regulatory domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00572"
FT BINDING 58
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00572"
FT BINDING 261
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00572"
FT BINDING 263
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00572"
FT BINDING 297
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00572"
SQ SEQUENCE 583 AA; 64924 MW; 3B5DA3B330C37D07 CRC64;
MPTTSTAAWN RQRPSGMPAH RYTDVYTRVD VPLADHDRRW PTRRITAAPL WVPVDLRDGN
QALAEPMDPE RKRRLFELMV RMGYTEIEVG YPSASQTDYD FVRLLAETDI APDDVTIVVF
TPARRDLIER TVESIRDVRN PVVIHMYAAT APIWRDTVLG KDRDELREMI LAGGRDVWEL
AGHLPNVRFE FSPEVFTLTE PDYVIEICDA ITELWQATPA RPVILNLPAT VEVATPNVYA
DQIEYMDRTL ARRDGVILSV HPHNDRGTGI ACAELAVLAG AQRVEGCIFG TGERTGNVDI
ATLALNLYTQ GVDPMIDFSD IDEIRRTVEY CTRMEIHPRH PYVGDLVHTA FSGTHQDAIK
KGMAEHRARA RVEGRSEREI AWRVPYLPID PADIGRTYDA VIRVNSQSGK GGIAYLLEAE
YGIELPRRLQ MDLSRRVQQY TDTTGDEVTA RDIWGIFSAA YLSDADDRAV RLTAMHLDEA
AGRTELTLQV DGTESHSTHQ DAGPIEALAA ALHAHEMPVE ILSLHQSSMR SRADADALTI
LEYRTADGSA WTAGRDRSSL TATLDAVIRA ANADAGARTA VAP
//
