LEUD_CERS5
ID LEUD_CERS5 Reviewed; 201 AA.
AC A4WNV6;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 29-MAY-2007, sequence version 1.
DT 03-AUG-2022, entry version 85.
DE RecName: Full=3-isopropylmalate dehydratase small subunit {ECO:0000255|HAMAP-Rule:MF_01031};
DE EC=4.2.1.33 {ECO:0000255|HAMAP-Rule:MF_01031};
DE AltName: Full=Alpha-IPM isomerase {ECO:0000255|HAMAP-Rule:MF_01031};
DE Short=IPMI {ECO:0000255|HAMAP-Rule:MF_01031};
DE AltName: Full=Isopropylmalate isomerase {ECO:0000255|HAMAP-Rule:MF_01031};
GN Name=leuD {ECO:0000255|HAMAP-Rule:MF_01031};
GN OrderedLocusNames=Rsph17025_0159;
OS Cereibacter sphaeroides (strain ATCC 17025 / ATH 2.4.3) (Rhodobacter
OS sphaeroides).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC Rhodobacteraceae; Cereibacter.
OX NCBI_TaxID=349102;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 17025 / ATH 2.4.3;
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 Chertkov O., Brettin T., Bruce D., Han C., Schmutz J., Larimer F., Land M.,
RA Hauser L., Kyrpides N., Kim E., Richardson P., Mackenzie C., Choudhary M.,
RA Donohue T.J., Kaplan S.;
RT "Complete sequence of chromosome of Rhodobacter sphaeroides ATCC 17025.";
RL Submitted (APR-2007) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the isomerization between 2-isopropylmalate and 3-
CC isopropylmalate, via the formation of 2-isopropylmaleate.
CC {ECO:0000255|HAMAP-Rule:MF_01031}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2R,3S)-3-isopropylmalate = (2S)-2-isopropylmalate;
CC Xref=Rhea:RHEA:32287, ChEBI:CHEBI:1178, ChEBI:CHEBI:35121;
CC EC=4.2.1.33; Evidence={ECO:0000255|HAMAP-Rule:MF_01031};
CC -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC from 3-methyl-2-oxobutanoate: step 2/4. {ECO:0000255|HAMAP-
CC Rule:MF_01031}.
CC -!- SUBUNIT: Heterodimer of LeuC and LeuD. {ECO:0000255|HAMAP-
CC Rule:MF_01031}.
CC -!- SIMILARITY: Belongs to the LeuD family. LeuD type 1 subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_01031}.
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DR EMBL; CP000661; ABP69070.1; -; Genomic_DNA.
DR AlphaFoldDB; A4WNV6; -.
DR SMR; A4WNV6; -.
DR STRING; 349102.Rsph17025_0159; -.
DR EnsemblBacteria; ABP69070; ABP69070; Rsph17025_0159.
DR KEGG; rsq:Rsph17025_0159; -.
DR eggNOG; COG0066; Bacteria.
DR HOGENOM; CLU_081378_0_3_5; -.
DR OMA; AFTTHTG; -.
DR OrthoDB; 1384217at2; -.
DR BioCyc; RSPH349102:G1G8M-161-MON; -.
DR UniPathway; UPA00048; UER00071.
DR GO; GO:0009316; C:3-isopropylmalate dehydratase complex; IEA:InterPro.
DR GO; GO:0003861; F:3-isopropylmalate dehydratase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd01577; IPMI_Swivel; 1.
DR Gene3D; 3.20.19.10; -; 1.
DR HAMAP; MF_01031; LeuD_type1; 1.
DR InterPro; IPR004431; 3-IsopropMal_deHydase_ssu.
DR InterPro; IPR015928; Aconitase/3IPM_dehydase_swvl.
DR InterPro; IPR000573; AconitaseA/IPMdHydase_ssu_swvl.
DR InterPro; IPR033940; IPMI_Swivel.
DR Pfam; PF00694; Aconitase_C; 1.
DR TIGRFAMs; TIGR00171; leuD; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; Branched-chain amino acid biosynthesis;
KW Leucine biosynthesis; Lyase.
FT CHAIN 1..201
FT /note="3-isopropylmalate dehydratase small subunit"
FT /id="PRO_1000063822"
SQ SEQUENCE 201 AA; 22211 MW; 996901C8DE65B225 CRC64;
MDKFTKLTGV AAPMPLVNID TDMIIPKQFL KTIQRSGLGK NLFDEMRYNQ DGTEIADFVL
NQPAYRQAQI IVAGDNFGCG SSREHAPWAL LDFGIRCVIA TSFADIFYNN CFKNGILPIV
MPPEVVAVLM EDARKGANAR MTVDLEAQTV TTSDGQSFPF QVDSFRRHCL MNGLDDIGLT
LEKVAAIDGF EKAAATLRPW V