ID A2CCI9_PROM3 Unreviewed; 210 AA.
AC A2CCI9;
DT 20-FEB-2007, integrated into UniProtKB/TrEMBL.
DT 20-FEB-2007, sequence version 1.
DT 27-MAR-2024, entry version 90.
DE RecName: Full=3-isopropylmalate dehydratase {ECO:0000256|ARBA:ARBA00011998};
DE EC=4.2.1.33 {ECO:0000256|ARBA:ARBA00011998};
GN Name=leuD {ECO:0000313|EMBL:ABM79199.1};
GN OrderedLocusNames=P9303_24681 {ECO:0000313|EMBL:ABM79199.1};
OS Prochlorococcus marinus (strain MIT 9303).
OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales;
OC Prochlorococcaceae; Prochlorococcus.
OX NCBI_TaxID=59922 {ECO:0000313|EMBL:ABM79199.1, ECO:0000313|Proteomes:UP000002274};
RN [1] {ECO:0000313|EMBL:ABM79199.1, ECO:0000313|Proteomes:UP000002274}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MIT 9303 {ECO:0000313|EMBL:ABM79199.1,
RC ECO:0000313|Proteomes:UP000002274};
RX PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA Richardson P., Chisholm S.W.;
RT "Patterns and implications of gene gain and loss in the evolution of
RT Prochlorococcus.";
RL PLoS Genet. 3:2515-2528(2007).
CC -!- FUNCTION: Catalyzes the isomerization between 2-isopropylmalate and 3-
CC isopropylmalate, via the formation of 2-isopropylmaleate.
CC {ECO:0000256|ARBA:ARBA00002695}.
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:0000256|ARBA:ARBA00000491};
CC -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC from 3-methyl-2-oxobutanoate: step 2/4.
CC {ECO:0000256|ARBA:ARBA00004729}.
CC -!- SUBUNIT: Heterodimer of LeuC and LeuD. {ECO:0000256|ARBA:ARBA00011271}.
CC -!- SIMILARITY: Belongs to the LeuD family. LeuD type 1 subfamily.
CC {ECO:0000256|ARBA:ARBA00009845}.
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DR EMBL; CP000554; ABM79199.1; -; Genomic_DNA.
DR AlphaFoldDB; A2CCI9; -.
DR STRING; 59922.P9303_24681; -.
DR KEGG; pmf:P9303_24681; -.
DR HOGENOM; CLU_081378_0_0_3; -.
DR BioCyc; PMAR59922:G1G80-2159-MONOMER; -.
DR Proteomes; UP000002274; Chromosome.
DR GO; GO:0003861; F:3-isopropylmalate dehydratase activity; IEA:UniProtKB-EC.
DR CDD; cd01577; IPMI_Swivel; 1.
DR Gene3D; 3.20.19.10; Aconitase, domain 4; 1.
DR InterPro; IPR015928; Aconitase/3IPM_dehydase_swvl.
DR InterPro; IPR000573; AconitaseA/IPMdHydase_ssu_swvl.
DR InterPro; IPR033940; IPMI_Swivel.
DR PANTHER; PTHR43345:SF5; 3-ISOPROPYLMALATE DEHYDRATASE SMALL SUBUNIT; 1.
DR PANTHER; PTHR43345; 3-ISOPROPYLMALATE DEHYDRATASE SMALL SUBUNIT 2-RELATED-RELATED; 1.
DR Pfam; PF00694; Aconitase_C; 1.
DR SUPFAM; SSF52016; LeuD/IlvD-like; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022430};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304};
KW Leucine biosynthesis {ECO:0000256|ARBA:ARBA00022430};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000313|EMBL:ABM79199.1}.
FT DOMAIN 70..120
FT /note="Aconitase A/isopropylmalate dehydratase small
FT subunit swivel"
FT /evidence="ECO:0000259|Pfam:PF00694"
SQ SEQUENCE 210 AA; 22839 MW; 851748182259B5D9 CRC64;
MTIEAIPFPH GSIDQVQGRA LMLRGDDIDT DRIIPARFLK CVSFEALGDQ VFEDDRLELG
GSHPFDLKVH QGASILVVND NFGCGSSREH APQALMRWGI RALIGQSFAE IFYGNCLALG
IPCATASLAQ IDALQQAVAA DPSQSWGFNL QAQQLTSAAS SWDLKIESGP REMLLSGRWD
ATSQLVAQDA ALKRTMADLP YLNDFVAPLH
//
