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LEUD_CALBD
ID   LEUD_CALBD              Reviewed;         166 AA.
AC   B9MLV3;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   25-MAY-2022, entry version 69.
DE   RecName: Full=3-isopropylmalate dehydratase small subunit {ECO:0000255|HAMAP-Rule:MF_01032};
DE            EC=4.2.1.33 {ECO:0000255|HAMAP-Rule:MF_01032};
DE   AltName: Full=Alpha-IPM isomerase {ECO:0000255|HAMAP-Rule:MF_01032};
DE            Short=IPMI {ECO:0000255|HAMAP-Rule:MF_01032};
DE   AltName: Full=Isopropylmalate isomerase {ECO:0000255|HAMAP-Rule:MF_01032};
GN   Name=leuD {ECO:0000255|HAMAP-Rule:MF_01032}; OrderedLocusNames=Athe_2100;
OS   Caldicellulosiruptor bescii (strain ATCC BAA-1888 / DSM 6725 / Z-1320)
OS   (Anaerocellum thermophilum).
OC   Bacteria; Firmicutes; Clostridia; Thermoanaerobacterales;
OC   Thermoanaerobacterales Family III. Incertae Sedis; Caldicellulosiruptor.
OX   NCBI_TaxID=521460;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1888 / DSM 6725 / Z-1320;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA   Goodwin L., Pitluck S., Sims D., Meincke L., Brettin T., Detter J.C.,
RA   Han C., Larimer F., Land M., Hauser L., Kyrpides N., Ovchinnikova G.,
RA   Kataeva I., Adams M.W.W.;
RT   "Complete sequence of chromosome of Anaerocellum thermophilum DSM 6725.";
RL   Submitted (JAN-2009) 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_01032}.
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_01032};
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_01032}.
CC   -!- SUBUNIT: Heterodimer of LeuC and LeuD. {ECO:0000255|HAMAP-
CC       Rule:MF_01032}.
CC   -!- SIMILARITY: Belongs to the LeuD family. LeuD type 2 subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01032}.
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DR   EMBL; CP001393; ACM61176.1; -; Genomic_DNA.
DR   RefSeq; WP_015908449.1; NC_012034.1.
DR   AlphaFoldDB; B9MLV3; -.
DR   SMR; B9MLV3; -.
DR   STRING; 521460.Athe_2100; -.
DR   PRIDE; B9MLV3; -.
DR   EnsemblBacteria; ACM61176; ACM61176; Athe_2100.
DR   GeneID; 31773448; -.
DR   KEGG; ate:Athe_2100; -.
DR   eggNOG; COG0066; Bacteria.
DR   HOGENOM; CLU_081378_1_1_9; -.
DR   OMA; GLPIIEC; -.
DR   OrthoDB; 1384217at2; -.
DR   UniPathway; UPA00048; UER00071.
DR   Proteomes; UP000007723; Chromosome.
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_01032; LeuD_type2; 1.
DR   InterPro; IPR015928; Aconitase/3IPM_dehydase_swvl.
DR   InterPro; IPR000573; AconitaseA/IPMdHydase_ssu_swvl.
DR   InterPro; IPR033940; IPMI_Swivel.
DR   InterPro; IPR011824; LeuD/DmdB_bac.
DR   InterPro; IPR011827; LeuD_type2/HacB/DmdB.
DR   Pfam; PF00694; Aconitase_C; 1.
DR   TIGRFAMs; TIGR02084; leud; 1.
DR   TIGRFAMs; TIGR02087; LEUD_arch; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Branched-chain amino acid biosynthesis;
KW   Leucine biosynthesis; Lyase.
FT   CHAIN           1..166
FT                   /note="3-isopropylmalate dehydratase small subunit"
FT                   /id="PRO_1000213359"
SQ   SEQUENCE   166 AA;  18278 MW;  2AB4CA5CF573A278 CRC64;
     MIFKGKAHKY YDNIDTDVII PARYLNTSDP NELAKHCLED LDKEFVNKVQ KGDILVAGKN
     FGCGSSREHA PIAIKACGVS CVIAKSFARI FYRNAINIGL PIVECEEAVD GIEAGDEVEV
     DLVNGIIKNL TKGKEFKAKP FPEFMQNIMK AGGLIEFVKG ELKKDA
 
 
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