ID D3PT80_MEIRD Unreviewed; 519 AA.
AC D3PT80;
DT 20-APR-2010, integrated into UniProtKB/TrEMBL.
DT 20-APR-2010, sequence version 1.
DT 27-MAR-2024, entry version 92.
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 OrderedLocusNames=Mrub_1906 {ECO:0000313|EMBL:ADD28663.1};
GN ORFNames=K649_13030 {ECO:0000313|EMBL:AGK05892.1};
OS Meiothermus ruber (strain ATCC 35948 / DSM 1279 / VKM B-1258 / 21) (Thermus
OS ruber).
OC Bacteria; Deinococcota; Deinococci; Thermales; Thermaceae; Meiothermus.
OX NCBI_TaxID=504728 {ECO:0000313|EMBL:AGK05892.1, ECO:0000313|Proteomes:UP000013026};
RN [1] {ECO:0000313|EMBL:ADD28663.1, ECO:0000313|Proteomes:UP000006655}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35948 / DSM 1279 / VKM B-1258 / 21
RC {ECO:0000313|Proteomes:UP000006655}, and DSM 1279
RC {ECO:0000313|EMBL:ADD28663.1};
RX PubMed=21304689; DOI=10.4056/sigs.1032748;
RA Tindall B.J., Sikorski J., Lucas S., Goltsman E., Copeland A.,
RA Glavina Del Rio T., Nolan M., Tice H., Cheng J.F., Han C., Pitluck S.,
RA Liolios K., Ivanova N., Mavromatis K., Ovchinnikova G., Pati A.,
RA Fahnrich R., Goodwin L., Chen A., Palaniappan K., Land M., Hauser L.,
RA Chang Y.J., Jeffries C.D., Rohde M., Goker M., Woyke T., Bristow J.,
RA Eisen J.A., Markowitz V., Hugenholtz P., Kyrpides N.C., Klenk H.P.,
RA Lapidus A.;
RT "Complete genome sequence of Meiothermus ruber type strain (21).";
RL Stand. Genomic Sci. 3:26-36(2010).
RN [2] {ECO:0000313|EMBL:AGK05892.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=DSM 1279 {ECO:0000313|EMBL:AGK05892.1};
RA Klammer A., Drake J., Heiner C., Clum A., Copeland A., Huddleston J.,
RA Eichler E., Turner S.W.;
RT "Non-Hybrid, Finished Microbial Genome Assemblies from Long-Read SMRT
RT Sequencing Data.";
RL Submitted (APR-2013) to the EMBL/GenBank/DDBJ databases.
RN [3] {ECO:0000313|EMBL:AGK05892.1, ECO:0000313|Proteomes:UP000013026}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 35948 / DSM 1279 / VKM B-1258 / 21
RC {ECO:0000313|Proteomes:UP000013026}, and DSM 1279
RC {ECO:0000313|EMBL:AGK05892.1};
RA Chin J., Alexander D.H., Marks P., Korlach J., Clum A., Copeland A.;
RL Submitted (APR-2013) 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_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; CP001743; ADD28663.1; -; Genomic_DNA.
DR EMBL; CP005385; AGK05892.1; -; Genomic_DNA.
DR RefSeq; WP_013014162.1; NC_021081.1.
DR AlphaFoldDB; D3PT80; -.
DR STRING; 504728.K649_13030; -.
DR KEGG; mrb:Mrub_1906; -.
DR KEGG; mre:K649_13030; -.
DR PATRIC; fig|504728.9.peg.2680; -.
DR eggNOG; COG0119; Bacteria.
DR OrthoDB; 9804858at2; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000006655; Chromosome.
DR Proteomes; UP000013026; 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:AGK05892.1};
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};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01025}.
FT DOMAIN 4..266
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000259|PROSITE:PS50991"
FT REGION 390..519
FT /note="Regulatory domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 13
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 201
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 203
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 237
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
SQ SEQUENCE 519 AA; 56767 MW; 133FF149646C4CF9 CRC64;
MRHIRIFDTT LRDGEQSPGV ALSLQQKLEI AHGLARLNVD IIEAGFPVNG ASEFECVSRI
AAEVKGPVIC ALARTHKLDI ERAAAALEKA EKKRIHVFTS ASKVHLQYML RKTPEEILEI
SDAMVRYARQ FTDDVEFSAQ DVMRADFDFV MKLYETAINA GATTINIPDT TGYGTPQEYG
ALIKRIYDEV VRGRDVHISA HCHDDLGMAT ANSLAAVENG ATQIECTING IGERAGNTAL
EEVVMALYVR RDHYKAHTQI NTRELYRMSR MVERYTGMVV QPNKAIVGDN AFAHESGIHQ
DGVIKNKETY EIMNAELVGR QAAVLVLGKH SGRAAVKKAL ADLGYKLDDT QIGAIFARFR
EIVERKGPIE TEELRALVES ESVSTPHLFN LEKLQFFSGY GMLPTATISL ETPKGVVTTT
AIGDGPVDAV YKALSEAIGF KPELELYRVE SVTGSTEALG EVTVKLKLGE VMATGHGISP
DIIEASARAY LDAANKLAAG QSARHPKSLE EVQRSGLGK
//
