ID I1PY57_ORYGL Unreviewed; 578 AA.
AC I1PY57;
DT 13-JUN-2012, integrated into UniProtKB/TrEMBL.
DT 13-JUN-2012, sequence version 1.
DT 24-JAN-2024, entry version 56.
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};
OS Oryza glaberrima (African rice).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC Oryzoideae; Oryzeae; Oryzinae; Oryza.
OX NCBI_TaxID=4538 {ECO:0000313|EnsemblPlants:ORGLA05G0230500.1, ECO:0000313|Proteomes:UP000007306};
RN [1] {ECO:0000313|Proteomes:UP000007306}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=IRGC 96717 {ECO:0000313|Proteomes:UP000007306};
RA Wing R.A., Yu Y., Rounsley S., Reddy-Marri P., Goicoechea J.L.,
RA Sisneros N., Lee S., Song X., Angelova A., Kudrna D.P., de Baynast K.,
RA Zuccolo A.;
RT "The complete genome of Oryza glaberrima.";
RL Submitted (JUN-2010) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EnsemblPlants:ORGLA05G0230500.1}
RP IDENTIFICATION.
RG EnsemblPlants;
RL Submitted (JUN-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 AlphaFoldDB; I1PY57; -.
DR STRING; 4538.I1PY57; -.
DR EnsemblPlants; ORGLA05G0230500.1; ORGLA05G0230500.1; ORGLA05G0230500.
DR Gramene; ORGLA05G0230500.1; ORGLA05G0230500.1; ORGLA05G0230500.
DR eggNOG; ENOG502QQBF; Eukaryota.
DR HOGENOM; CLU_033821_5_1_1; -.
DR OMA; FKNTVEC; -.
DR UniPathway; UPA00047; UER00056.
DR UniPathway; UPA00049; UER00060.
DR Proteomes; UP000007306; Unassembled WGS sequence.
DR GO; GO:0004455; F:ketol-acid reductoisomerase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:EnsemblPlants.
DR GO; GO:0070402; F:NADPH binding; IEA:EnsemblPlants.
DR GO; GO:0042803; F:protein homodimerization activity; IEA:EnsemblPlants.
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}.
FT DOMAIN 90..288
FT /note="KARI N-terminal Rossmann"
FT /evidence="ECO:0000259|PROSITE:PS51850"
FT DOMAIN 289..437
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT DOMAIN 438..574
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT ACT_SITE 208
FT /evidence="ECO:0000256|PIRSR:PIRSR000118-1"
FT BINDING 297
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 297
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 301
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 474
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 478
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 500
FT /ligand="substrate"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
SQ SEQUENCE 578 AA; 62435 MW; 186C5AD0B00C94F0 CRC64;
MAASTTLALS HPKTLAAAAA AAPKAPTAPA AVSFPASHAA CAPLAARRRA VTAMVAAPPA
VGAAMPSLDF DTSVFNKEKV SLAGHEEYIV RGGRNLFPLL PEAFKGIKQI GVIGWGSQGP
AQAQNLRDSL AEAKSDIVVK IGLRKGSKSF DEARAAGFTE ESGTLGDIWE TVSGSDLVLL
LISDAAQADN YEKIFSHMKP NSILGLSHGF LLGHLQSAGL DFPKNISVIA VCPKGMGPSV
RRLYVQGKEI NGAGINSSFA VHQDVDGRAT DVALGWSVAL GSPFTFATTL EQEYKSDIFG
ERGILLGAVH GIVEALFRRY TEQGMDEEMA YKNTVEGITG IISKTISKKG MLEVYNSLTE
EEKKEFNKAY SASFYPCMDI LYECYEDVAS GSEIRSVVLA GRRFYEKEGL PAFPMGNIDQ
TRMWKVGEKV RSTRPENDLG PLHPFTAGVY IALMMAQIEV LRKKGHSYSE IINESVIESV
DSLNPFMHAR GVAFMVDNCS TTARLGSRKW APRFDYILTQ QAFVTVDKDA PINQDLISNF
MSDPVHGAIE VCAELRPTVD ISVPANADFV RPELRQSS
//
