ID A0A0D3DU71_BRAOL Unreviewed; 581 AA.
AC A0A0D3DU71;
DT 29-APR-2015, integrated into UniProtKB/TrEMBL.
DT 29-APR-2015, sequence version 1.
DT 27-MAR-2024, entry version 39.
DE RecName: Full=Ketol-acid reductoisomerase {ECO:0000256|PIRNR:PIRNR000118};
DE EC=1.1.1.86 {ECO:0000256|PIRNR:PIRNR000118};
DE AltName: Full=Acetohydroxy-acid reductoisomerase {ECO:0000256|PIRNR:PIRNR000118};
DE AltName: Full=Alpha-keto-beta-hydroxylacyl reductoisomerase {ECO:0000256|PIRNR:PIRNR000118};
GN Name=106312314 {ECO:0000313|EnsemblPlants:Bo8g092740.1};
OS Brassica oleracea var. oleracea.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; malvids; Brassicales; Brassicaceae; Brassiceae; Brassica.
OX NCBI_TaxID=109376 {ECO:0000313|EnsemblPlants:Bo8g092740.1, ECO:0000313|Proteomes:UP000032141};
RN [1] {ECO:0000313|EnsemblPlants:Bo8g092740.1, ECO:0000313|Proteomes:UP000032141}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=cv. TO1000 {ECO:0000313|Proteomes:UP000032141};
RX PubMed=24916971; DOI=10.1186/gb-2014-15-6-r77;
RA Parkin I.A., Koh C., Tang H., Robinson S.J., Kagale S., Clarke W.E.,
RA Town C.D., Nixon J., Krishnakumar V., Bidwell S.L., Denoeud F., Belcram H.,
RA Links M.G., Just J., Clarke C., Bender T., Huebert T., Mason A.S.,
RA Pires J.C., Barker G., Moore J., Walley P.G., Manoli S., Batley J.,
RA Edwards D., Nelson M.N., Wang X., Paterson A.H., King G., Bancroft I.,
RA Chalhoub B., Sharpe A.G.;
RT "Transcriptome and methylome profiling reveals relics of genome dominance
RT in the mesopolyploid Brassica oleracea.";
RL Genome Biol. 15:R77-R77(2014).
RN [2] {ECO:0000313|EnsemblPlants:Bo8g092740.1}
RP IDENTIFICATION.
RG EnsemblPlants;
RL Submitted (MAR-2015) to UniProtKB.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2R)-2,3-dihydroxy-3-methylbutanoate + NADP(+) = (2S)-2-
CC acetolactate + H(+) + NADPH; Xref=Rhea:RHEA:22068, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:49072, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349,
CC ChEBI:CHEBI:58476; EC=1.1.1.86;
CC Evidence={ECO:0000256|PIRNR:PIRNR000118};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(2R,3R)-2,3-dihydroxy-3-methylpentanoate + NADP(+) = (S)-2-
CC ethyl-2-hydroxy-3-oxobutanoate + H(+) + NADPH; Xref=Rhea:RHEA:13493,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:49256, ChEBI:CHEBI:49258,
CC ChEBI:CHEBI:57783, ChEBI:CHEBI:58349; EC=1.1.1.86;
CC Evidence={ECO:0000256|PIRNR:PIRNR000118};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|PIRNR:PIRNR000118};
CC Note=Binds 2 magnesium ions per subunit.
CC {ECO:0000256|PIRNR:PIRNR000118};
CC -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC isoleucine from 2-oxobutanoate: step 2/4.
CC {ECO:0000256|ARBA:ARBA00004885, ECO:0000256|PIRNR:PIRNR000118}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC pyruvate: step 2/4. {ECO:0000256|ARBA:ARBA00004864,
CC ECO:0000256|PIRNR:PIRNR000118}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|PIRNR:PIRNR000118}.
CC -!- SIMILARITY: Belongs to the ketol-acid reductoisomerase family.
CC {ECO:0000256|ARBA:ARBA00010318, ECO:0000256|PIRNR:PIRNR000118,
CC ECO:0000256|PROSITE-ProRule:PRU01198}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|PROSITE-ProRule:PRU01198}.
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DR RefSeq; XP_013605245.1; XM_013749791.1.
DR AlphaFoldDB; A0A0D3DU71; -.
DR STRING; 109376.A0A0D3DU71; -.
DR EnsemblPlants; Bo8g092740.1; Bo8g092740.1; Bo8g092740.
DR GeneID; 106312314; -.
DR Gramene; Bo8g092740.1; Bo8g092740.1; Bo8g092740.
DR KEGG; boe:106312314; -.
DR eggNOG; ENOG502QQBF; Eukaryota.
DR HOGENOM; CLU_033821_5_1_1; -.
DR OMA; MLAVYNY; -.
DR OrthoDB; 1090117at2759; -.
DR UniPathway; UPA00047; UER00056.
DR UniPathway; UPA00049; UER00060.
DR Proteomes; UP000032141; Chromosome C8.
DR GO; GO:0004455; F:ketol-acid reductoisomerase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009097; P:isoleucine biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0009099; P:valine biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1.
DR InterPro; IPR008927; 6-PGluconate_DH-like_C_sf.
DR InterPro; IPR013328; 6PGD_dom2.
DR InterPro; IPR013023; KARI.
DR InterPro; IPR000506; KARI_C.
DR InterPro; IPR013116; KARI_N.
DR InterPro; IPR016206; KetolA_reductoisomerase_plant.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR PANTHER; PTHR21371; KETOL-ACID REDUCTOISOMERASE, MITOCHONDRIAL; 1.
DR PANTHER; PTHR21371:SF1; KETOL-ACID REDUCTOISOMERASE, MITOCHONDRIAL; 1.
DR Pfam; PF01450; IlvC; 2.
DR Pfam; PF07991; IlvN; 1.
DR PIRSF; PIRSF000118; Ilv5_plant; 1.
DR SUPFAM; SSF48179; 6-phosphogluconate dehydrogenase C-terminal domain-like; 1.
DR SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 1.
DR PROSITE; PS51851; KARI_C; 2.
DR PROSITE; PS51850; KARI_N; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605,
KW ECO:0000256|PIRNR:PIRNR000118};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|PIRNR:PIRNR000118};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|PIRNR:PIRNR000118};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|PIRNR:PIRNR000118}; NADP {ECO:0000256|PIRNR:PIRNR000118};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|PIRNR:PIRNR000118};
KW Reference proteome {ECO:0000313|Proteomes:UP000032141}.
FT DOMAIN 93..291
FT /note="KARI N-terminal Rossmann"
FT /evidence="ECO:0000259|PROSITE:PS51850"
FT DOMAIN 292..440
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT DOMAIN 441..577
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT ACT_SITE 211
FT /evidence="ECO:0000256|PIRSR:PIRSR000118-1"
FT BINDING 300
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PIRSR:PIRSR000118-2,
FT ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 300
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000118-2,
FT ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 304
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PIRSR:PIRSR000118-2,
FT ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 362
FT /ligand="substrate"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 477
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 481
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 503
FT /ligand="substrate"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
SQ SEQUENCE 581 AA; 62903 MW; ECF112AA427FCD60 CRC64;
MAAATSSIAP PLSCPSKALR TSKATSLAFG FVSSTSKSLR SLTATVPGNG TGSSLSARMV
ASSAVRAPVS LDFETSVFKK EKVSLAGYDE YIVRGGRDLF KHLPDAFKGI KQIGVIGWGS
QGPAQAQNLR DSLVEAKSDI VVKIGLRKGS KSFEEARAVG FTEESGTLGD IWETISGSDL
VLLLISDAAQ ADNYEKIFSH MKPNSILGLS HGFLLGHLQS MGLDFPKNIS VVAVCPKGMG
PSVRRLYVQG KEINGAGINA SFAVHQDVDG RAADVALGWS VALGSPFTFA TTLEQEYKSD
IFGERGILLG AVHGIVESLF RRYTENGMSE DLAYKNTVEC ITGTISRTIS TQGMLAVYNY
LSEEGKKDFE TAYSASFYPC MEILYECYED VAAGSEIRSV VLAGRRFYDK EGLPAFPMGK
IDQTRMWKVG ERVRKSRPAG DLGPLYPFTA GVYVALMMAQ IEILRKKGHS YSEIINESVI
ESVDSLNPFM HARGVSFMVD NCSTTARLGS RKWAPRFDYN LTQQALVAVD SGAPINKDLI
SNFFADPVHG AIEVCAQLRP TVDISVPEDA DFVRPELRQS S
//
