ID M1YL70_NITG3 Unreviewed; 519 AA.
AC M1YL70;
DT 01-MAY-2013, integrated into UniProtKB/TrEMBL.
DT 01-MAY-2013, sequence version 1.
DT 24-JAN-2024, entry version 54.
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 ECO:0000313|EMBL:CCQ91206.1};
GN ORFNames=NITGR_590085 {ECO:0000313|EMBL:CCQ91206.1};
OS Nitrospina gracilis (strain 3/211).
OC Bacteria; Nitrospinae/Tectomicrobia group; Nitrospinota; Nitrospinia;
OC Nitrospinales; Nitrospinaceae; Nitrospina.
OX NCBI_TaxID=1266370 {ECO:0000313|EMBL:CCQ91206.1, ECO:0000313|Proteomes:UP000011704};
RN [1] {ECO:0000313|EMBL:CCQ91206.1, ECO:0000313|Proteomes:UP000011704}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=3/211 {ECO:0000313|EMBL:CCQ91206.1,
RC ECO:0000313|Proteomes:UP000011704};
RX PubMed=23439773; DOI=10.3389/fmicb.2013.00027;
RA Luecker S., Nowka B., Rattei T., Spieck E., and Daims H.;
RT "The genome of Nitrospina gracilis illuminates the metabolism and evolution
RT of the major marine nitrite oxidizer.";
RL Front. Microbiol. 4:27-27(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}.
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:CCQ91206.1}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CAQJ01000065; CCQ91206.1; -; Genomic_DNA.
DR RefSeq; WP_005009593.1; NZ_HG422173.1.
DR AlphaFoldDB; M1YL70; -.
DR STRING; 1266370.NITGR_590085; -.
DR HOGENOM; CLU_022158_0_1_0; -.
DR InParanoid; M1YL70; -.
DR OMA; NTMRMLV; -.
DR OrthoDB; 9804858at2; -.
DR UniPathway; UPA00048; UER00070.
DR Proteomes; UP000011704; Unassembled WGS sequence.
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:CCQ91206.1};
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:UP000011704};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01025}.
FT DOMAIN 6..268
FT /note="Pyruvate carboxyltransferase"
FT /evidence="ECO:0000259|PROSITE:PS50991"
FT REGION 394..519
FT /note="Regulatory domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 15
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 205
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
FT BINDING 239
FT /ligand="Mn(2+)"
FT /ligand_id="ChEBI:CHEBI:29035"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01025"
SQ SEQUENCE 519 AA; 56457 MW; 485E7C1AB3DC8F79 CRC64;
MQPERIIIFD TTLRDGEQCP GASMNNKEKL EIARQLSLLK VDVIEAGFPV ASPGDFESVK
QIASEIRGSS VAGLARALNK DVEACARALE KAESPRIHIF LSTSKLHRDH KLNMDKGQII
KMATDAIEFG RKYCDDIEFS PEDASRTEPD FLAEVVEAVI AAGAKTVNIP DTVGYSVPEQ
FGALIHSLKE NVPNIDDAVI SVHCHNDLGM AVANSLAAVK AGARQVECTI NGIGERAGNA
AMEEIVMALK TRKDFFGYDT RIDTSHIIAC SRLVSSLTGF FVQRNKAIVG KNAFAHESGV
HQDGYLKKKD TYEIMDPRDI GLDSAELVLG KHSGRNALNK KIESMGYKLT VEEMDRVFSE
FKVLADEKKD VYDEDILAVI QKQVTTDDSL NTYVLEKIQC GFETGVMPEA TVQLKSRDGQ
THTATAQGDG PIDAIYNAMD KITGLTCKLL DYQVMSKTKG KDAQGEVSVR VLSENREVLG
KGTGVNTVEA SGVAYVNAIN KLLLKSKSGP VDGNEIQGP
//