ID A0A0E1RXT7_COCIM Unreviewed; 406 AA.
AC A0A0E1RXT7;
DT 27-MAY-2015, integrated into UniProtKB/TrEMBL.
DT 27-MAY-2015, sequence version 1.
DT 24-JAN-2024, entry version 38.
DE RecName: Full=Ketol-acid reductoisomerase, mitochondrial {ECO:0000256|PIRNR:PIRNR000119};
DE EC=1.1.1.86 {ECO:0000256|PIRNR:PIRNR000119};
DE AltName: Full=Acetohydroxy-acid reductoisomerase {ECO:0000256|PIRNR:PIRNR000119};
DE AltName: Full=Alpha-keto-beta-hydroxylacyl reductoisomerase {ECO:0000256|PIRNR:PIRNR000119};
GN ORFNames=CIMG_05641 {ECO:0000313|EMBL:EAS34617.1};
OS Coccidioides immitis (strain RS) (Valley fever fungus).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Eurotiomycetes;
OC Eurotiomycetidae; Onygenales; Onygenaceae; Coccidioides.
OX NCBI_TaxID=246410 {ECO:0000313|EMBL:EAS34617.1, ECO:0000313|Proteomes:UP000001261};
RN [1] {ECO:0000313|Proteomes:UP000001261}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=RS {ECO:0000313|Proteomes:UP000001261};
RX PubMed=19717792; DOI=10.1101/gr.087551.108;
RA Sharpton T.J., Stajich J.E., Rounsley S.D., Gardner M.J., Wortman J.R.,
RA Jordar V.S., Maiti R., Kodira C.D., Neafsey D.E., Zeng Q., Hung C.-Y.,
RA McMahan C., Muszewska A., Grynberg M., Mandel M.A., Kellner E.M.,
RA Barker B.M., Galgiani J.N., Orbach M.J., Kirkland T.N., Cole G.T.,
RA Henn M.R., Birren B.W., Taylor J.W.;
RT "Comparative genomic analyses of the human fungal pathogens Coccidioides
RT and their relatives.";
RL Genome Res. 19:1722-1731(2009).
RN [2] {ECO:0000313|Proteomes:UP000001261}
RP GENOME REANNOTATION.
RC STRAIN=RS {ECO:0000313|Proteomes:UP000001261};
RX PubMed=20516208; DOI=10.1101/gr.103911.109;
RA Neafsey D.E., Barker B.M., Sharpton T.J., Stajich J.E., Park D.J.,
RA Whiston E., Hung C.-Y., McMahan C., White J., Sykes S., Heiman D.,
RA Young S., Zeng Q., Abouelleil A., Aftuck L., Bessette D., Brown A.,
RA FitzGerald M., Lui A., Macdonald J.P., Priest M., Orbach M.J.,
RA Galgiani J.N., Kirkland T.N., Cole G.T., Birren B.W., Henn M.R.,
RA Taylor J.W., Rounsley S.D.;
RT "Population genomic sequencing of Coccidioides fungi reveals recent
RT hybridization and transposon control.";
RL Genome Res. 20:938-946(2010).
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:PIRNR000119};
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:PIRNR000119};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|PIRNR:PIRNR000119};
CC Note=Binds 2 magnesium ions per subunit.
CC {ECO:0000256|PIRNR:PIRNR000119};
CC -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC isoleucine from 2-oxobutanoate: step 2/4.
CC {ECO:0000256|ARBA:ARBA00004885}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC pyruvate: step 2/4. {ECO:0000256|ARBA:ARBA00004864}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion {ECO:0000256|PIRNR:PIRNR000119}.
CC -!- SIMILARITY: Belongs to the ketol-acid reductoisomerase family.
CC {ECO:0000256|ARBA:ARBA00010318, ECO:0000256|PIRNR:PIRNR000119,
CC ECO:0000256|PROSITE-ProRule:PRU01198}.
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DR EMBL; GG704914; EAS34617.1; -; Genomic_DNA.
DR RefSeq; XP_001246200.1; XM_001246199.2.
DR AlphaFoldDB; A0A0E1RXT7; -.
DR STRING; 246410.A0A0E1RXT7; -.
DR GeneID; 4562925; -.
DR KEGG; cim:CIMG_05641; -.
DR VEuPathDB; FungiDB:CIMG_05641; -.
DR InParanoid; A0A0E1RXT7; -.
DR OMA; RAMFSWL; -.
DR OrthoDB; 1090117at2759; -.
DR UniPathway; UPA00047; UER00056.
DR UniPathway; UPA00049; UER00060.
DR Proteomes; UP000001261; Unassembled WGS sequence.
DR GO; GO:0005739; C:mitochondrion; IEA:UniProtKB-SubCell.
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; IPR016207; KetolA_reductoisomerase_fun.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR NCBIfam; TIGR00465; ilvC; 1.
DR PANTHER; PTHR21371; KETOL-ACID REDUCTOISOMERASE, MITOCHONDRIAL; 1.
DR PANTHER; PTHR21371:SF1; KETOL-ACID REDUCTOISOMERASE, MITOCHONDRIAL; 1.
DR Pfam; PF01450; IlvC; 1.
DR Pfam; PF07991; IlvN; 1.
DR PIRSF; PIRSF000119; Ilv5_fungal; 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; 1.
DR PROSITE; PS51850; KARI_N; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605,
KW ECO:0000256|PIRNR:PIRNR000119};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|PIRNR:PIRNR000119};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|PIRNR:PIRNR000119};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|PIRNR:PIRNR000119};
KW Mitochondrion {ECO:0000256|PIRNR:PIRNR000119};
KW NADP {ECO:0000256|PIRNR:PIRNR000119};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|PIRNR:PIRNR000119};
KW Reference proteome {ECO:0000313|Proteomes:UP000001261}.
FT DOMAIN 66..256
FT /note="KARI N-terminal Rossmann"
FT /evidence="ECO:0000259|PROSITE:PS51850"
FT DOMAIN 257..404
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT BINDING 265
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 265
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 269
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 301
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 305
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 327
FT /ligand="substrate"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
SQ SEQUENCE 406 AA; 44895 MW; DC306FE52E464E10 CRC64;
MASRPAARAL RSSFSRNLAA SASKASRRTF ISATNARPAL AAKAAPIAAP FAQQARGIKT
IDFAGTKETV YEREDWPREK LLDYFKNDTL ALIGYGSQGH GQGLNLRDNG LNVIVGVRKD
GASWKEAVQD GWVPGKNLFD VNEAINRGTI VMNLLSDAAQ SETWPAIKPL LTKGKTLYFS
HGFSPVFKDL TKVDVPKDID VILVAPKGSG RTVRSLFKEG RGINSSVAVY QDVTGKAKEK
AVALGVAVGS GYLYETTFEK EVYSDLYGER GCLMGGIHGM FLAQYEVLRE RGHSPSEAFN
ETVEEATQSL YPLIGANGMD WMYAACSTTA RRGAIDWSSK FKDTLKPLFN ELYDSVKDGS
ETKRSLDYNS QPDYRERYEK EMQDIRDLEI WRAGKAVRSL RPENQK
//
