LEUD_BIFLO
ID LEUD_BIFLO Reviewed; 230 AA.
AC Q8G4W1;
DT 10-JAN-2006, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2003, sequence version 1.
DT 03-AUG-2022, entry version 98.
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}; OrderedLocusNames=BL1263;
OS Bifidobacterium longum (strain NCC 2705).
OC Bacteria; Actinobacteria; Bifidobacteriales; Bifidobacteriaceae;
OC Bifidobacterium.
OX NCBI_TaxID=206672;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NCC 2705;
RX PubMed=12381787; DOI=10.1073/pnas.212527599;
RA Schell M.A., Karmirantzou M., Snel B., Vilanova D., Berger B., Pessi G.,
RA Zwahlen M.-C., Desiere F., Bork P., Delley M., Pridmore R.D., Arigoni F.;
RT "The genome sequence of Bifidobacterium longum reflects its adaptation to
RT the human gastrointestinal tract.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:14422-14427(2002).
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; AE014295; AAN25064.1; -; Genomic_DNA.
DR RefSeq; NP_696428.1; NC_004307.2.
DR RefSeq; WP_007053083.1; NC_004307.2.
DR AlphaFoldDB; Q8G4W1; -.
DR SMR; Q8G4W1; -.
DR STRING; 206672.BL1263; -.
DR EnsemblBacteria; AAN25064; AAN25064; BL1263.
DR GeneID; 66506026; -.
DR KEGG; blo:BL1263; -.
DR PATRIC; fig|206672.9.peg.1549; -.
DR HOGENOM; CLU_081378_0_1_11; -.
DR OMA; AFTTHTG; -.
DR PhylomeDB; Q8G4W1; -.
DR UniPathway; UPA00048; UER00071.
DR Proteomes; UP000000439; Chromosome.
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; Reference proteome.
FT CHAIN 1..230
FT /note="3-isopropylmalate dehydratase small subunit"
FT /id="PRO_0000141785"
SQ SEQUENCE 230 AA; 26048 MW; 074DF2175B6B0B4C CRC64;
MEKLTTLTGV GVPLRRSNVD TDQIIPAVFL KRVTKSGFDD ALFYAWRRDP NFVLNKPEYA
GKGQILVAGP EFGIGSSREH AVWALHDYGF RVVIAPSFAD IFYGNTAKNG VLAAIMPQES
VELLWKLLEE EPGREMTVSL ETRTVTCGDV TLPFEVNDYV RWRLMNGYDD IDLTLQHEDD
IAAYEKMRAE KFPFKPKTIP AKHWAEERIE SAREPEDADW TGPLADRGII
