ID A0A1I1V246_9BACT Unreviewed; 347 AA.
AC A0A1I1V246;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 24-JAN-2024, entry version 25.
DE RecName: Full=Acetohydroxy-acid isomeroreductase {ECO:0000256|ARBA:ARBA00032744};
GN ORFNames=SAMN05216167_10713 {ECO:0000313|EMBL:SFD76959.1};
OS Spirosoma endophyticum.
OC Bacteria; Bacteroidota; Cytophagia; Cytophagales; Cytophagaceae; Spirosoma.
OX NCBI_TaxID=662367 {ECO:0000313|EMBL:SFD76959.1, ECO:0000313|Proteomes:UP000198598};
RN [1] {ECO:0000313|EMBL:SFD76959.1, ECO:0000313|Proteomes:UP000198598}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 26130 {ECO:0000313|EMBL:SFD76959.1,
RC ECO:0000313|Proteomes:UP000198598};
RA de Groot N.N.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|ARBA:ARBA00001946};
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 -!- SIMILARITY: Belongs to the ketol-acid reductoisomerase family.
CC {ECO:0000256|ARBA:ARBA00010318, ECO:0000256|PROSITE-ProRule:PRU01198}.
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DR EMBL; FOLQ01000007; SFD76959.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1I1V246; -.
DR STRING; 662367.SAMN05216167_10713; -.
DR OrthoDB; 9804088at2; -.
DR UniPathway; UPA00047; UER00056.
DR UniPathway; UPA00049; UER00060.
DR Proteomes; UP000198598; Unassembled WGS sequence.
DR GO; GO:0016853; F:isomerase activity; IEA:UniProtKB-KW.
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; 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 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|PROSITE-ProRule:PRU01198};
KW Branched-chain amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023304,
KW ECO:0000256|PROSITE-ProRule:PRU01198};
KW Isomerase {ECO:0000313|EMBL:SFD76959.1};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|PROSITE-
KW ProRule:PRU01198};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|PROSITE-
KW ProRule:PRU01198};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|PROSITE-
KW ProRule:PRU01198}; Reference proteome {ECO:0000313|Proteomes:UP000198598}.
FT DOMAIN 9..198
FT /note="KARI N-terminal Rossmann"
FT /evidence="ECO:0000259|PROSITE:PS51850"
FT DOMAIN 199..346
FT /note="KARI C-terminal knotted"
FT /evidence="ECO:0000259|PROSITE:PS51851"
FT BINDING 207
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 207
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 211
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 243
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
FT BINDING 247
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="substrate"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01198"
SQ SEQUENCE 347 AA; 38207 MW; D2AE4FA76F76C8A6 CRC64;
MATINFGGVE EQVVTREEFP LEKAREELAN ETIAVIGYGV QGPGQSLNMR DNGFNVIVGQ
RKGKTYDKAV ADGWVPGETL FEIEEALEKG TIICFLLSDA AQIELWPTVK AALKPGKSLY
FSHGFGVTYK EKTGIIPPSD VDVFLVAPKG SGTSLRRLFV EGKGLNSSFA IYQDASGNAR
NKAIAMGIGV GSGYLFETDF YKEVTSDLTG ERGTLMGAIQ GIFAAQYEVL RANGHSPSEA
FNETVEELTQ SLMPLVAENG MDWMYANCST TAQRGALDWW KPFHDATKPV FEKLYNSVKS
QEQAEISITR NSQPDYREKL EVELAELRDS EMWRAGAAVR SLRPERS
//
