ID H9ZQY3_THETH Unreviewed; 520 AA.
AC H9ZQY3;
DT 13-JUN-2012, integrated into UniProtKB/TrEMBL.
DT 13-JUN-2012, sequence version 1.
DT 24-JAN-2024, entry version 63.
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|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 ORFNames=TtJL18_0841 {ECO:0000313|EMBL:AFH38743.1};
OS Thermus thermophilus JL-18.
OC Bacteria; Deinococcota; Deinococci; Thermales; Thermaceae; Thermus.
OX NCBI_TaxID=798128 {ECO:0000313|EMBL:AFH38743.1, ECO:0000313|Proteomes:UP000007388};
RN [1] {ECO:0000313|EMBL:AFH38743.1, ECO:0000313|Proteomes:UP000007388}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JL-18 {ECO:0000313|EMBL:AFH38743.1,
RC ECO:0000313|Proteomes:UP000007388};
RX PubMed=23405355; DOI=10.1128/genomeA.00106-12;
RA Murugapiran S.K., Huntemann M., Wei C.L., Han J., Detter J.C., Han C.S.,
RA Erkkila T.H., Teshima H., Chen A., Kyrpides N., Mavrommatis K.,
RA Markowitz V., Szeto E., Ivanova N., Pagani I., Lam J., McDonald A.I.,
RA Dodsworth J.A., Pati A., Goodwin L., Peters L., Pitluck S., Woyke T.,
RA Hedlund B.P.;
RT "Whole Genome Sequencing of Thermus oshimai JL-2 and Thermus thermophilus
RT JL-18, Incomplete Denitrifiers from the United States Great Basin.";
RL Genome Announc. 1:E00106-E00112(2013).
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; CP003252; AFH38743.1; -; Genomic_DNA.
DR RefSeq; WP_014629434.1; NC_017587.1.
DR AlphaFoldDB; H9ZQY3; -.
DR STRING; 798128.TtJL18_0841; -.
DR KEGG; ttl:TtJL18_0841; -.
DR PATRIC; fig|798128.4.peg.816; -.
DR HOGENOM; CLU_022158_0_1_0; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000007388; 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 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};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01025}.
FT DOMAIN 7..269
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000259|PROSITE:PS50991"
FT REGION 394..520
FT /note="Regulatory domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 16
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 204
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 206
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 240
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
SQ SEQUENCE 520 AA; 57421 MW; BFAA60BB436889A3 CRC64;
MEKERHIRIF DTTLRDGEQS PGVALSLDQK LEIAQALARL NVDIIEAGFP VSGPLEFEAV
RRIATEVKGP IIAALARTHT LDIDQAAKAL EKAEKPRIHV FTSASKVHLQ YMLRKTEEEV
LEMADRMVRY ARRYVDDVEF SAQDVMRADW EFVKRLYEVA IEAGATTINI PDTTGYGTPQ
EYGALIRRIR DEVVRGRDVI ISTHTHDDLG LATANALAGV ENGAGQIECT VNGIGERAGN
CALEEVVMAL YVRRDWYKAY TQINTREIYR VSRLVERYTG MPVPPNKAIV GDNAFAHESG
IHQDGVIKHR ATYEIMDAEL IGRRPAVLVL GKHSGRAAFK KALEDLGYKD LSEEEIKKLF
ARFKEIAEKK GPLSAEELQA LVESEREPTS HFFQLERVQF FSGSGLLPTA TVQVKTPDGE
RLATHTGDGP VDAVFKAIQE AIGLRPELEL YRVEAITGST EALGQVTVRL RLGELQAVGV
GVSPDIIEAS ALAFLDAAGK LASGRATRHP PSIEEVHRGV
//
