ID A0A1G9YNR3_9FIRM Unreviewed; 341 AA.
AC A0A1G9YNR3;
DT 22-NOV-2017, integrated into UniProtKB/TrEMBL.
DT 22-NOV-2017, sequence version 1.
DT 24-JAN-2024, entry version 17.
DE RecName: Full=branched-chain-amino-acid transaminase {ECO:0000256|ARBA:ARBA00013053};
DE EC=2.6.1.42 {ECO:0000256|ARBA:ARBA00013053};
GN ORFNames=SAMN05660299_02106 {ECO:0000313|EMBL:SDN10113.1};
OS Megasphaera paucivorans.
OC Bacteria; Bacillota; Negativicutes; Veillonellales; Veillonellaceae;
OC Megasphaera.
OX NCBI_TaxID=349095 {ECO:0000313|EMBL:SDN10113.1, ECO:0000313|Proteomes:UP000199309};
RN [1] {ECO:0000313|EMBL:SDN10113.1, ECO:0000313|Proteomes:UP000199309}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16981 {ECO:0000313|EMBL:SDN10113.1,
RC ECO:0000313|Proteomes:UP000199309};
RA de Groot N.N.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-oxoglutarate + L-isoleucine = (S)-3-methyl-2-oxopentanoate +
CC L-glutamate; Xref=Rhea:RHEA:24801, ChEBI:CHEBI:16810,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:35146, ChEBI:CHEBI:58045; EC=2.6.1.42;
CC Evidence={ECO:0000256|ARBA:ARBA00000627};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-oxoglutarate + L-leucine = 4-methyl-2-oxopentanoate + L-
CC glutamate; Xref=Rhea:RHEA:18321, ChEBI:CHEBI:16810,
CC ChEBI:CHEBI:17865, ChEBI:CHEBI:29985, ChEBI:CHEBI:57427; EC=2.6.1.42;
CC Evidence={ECO:0000256|ARBA:ARBA00000995};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2-oxoglutarate + L-valine = 3-methyl-2-oxobutanoate + L-
CC glutamate; Xref=Rhea:RHEA:24813, ChEBI:CHEBI:11851,
CC ChEBI:CHEBI:16810, ChEBI:CHEBI:29985, ChEBI:CHEBI:57762; EC=2.6.1.42;
CC Evidence={ECO:0000256|ARBA:ARBA00001745};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933};
CC -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC isoleucine from 2-oxobutanoate: step 4/4.
CC {ECO:0000256|ARBA:ARBA00004824}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC from 3-methyl-2-oxobutanoate: step 4/4.
CC {ECO:0000256|ARBA:ARBA00005072}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC pyruvate: step 4/4. {ECO:0000256|ARBA:ARBA00004931}.
CC -!- SIMILARITY: Belongs to the class-IV pyridoxal-phosphate-dependent
CC aminotransferase family. {ECO:0000256|ARBA:ARBA00009320}.
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DR EMBL; FNHQ01000024; SDN10113.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1G9YNR3; -.
DR STRING; 349095.SAMN05660299_02106; -.
DR OrthoDB; 9804984at2; -.
DR UniPathway; UPA00047; UER00058.
DR UniPathway; UPA00048; UER00073.
DR UniPathway; UPA00049; UER00062.
DR Proteomes; UP000199309; Unassembled WGS sequence.
DR GO; GO:0052656; F:L-isoleucine transaminase activity; IEA:UniProtKB-EC.
DR GO; GO:0052654; F:L-leucine transaminase activity; IEA:UniProtKB-EC.
DR GO; GO:0052655; F:L-valine transaminase activity; IEA:UniProtKB-EC.
DR GO; GO:0009097; P:isoleucine biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0009098; P:leucine biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0009099; P:valine biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd01557; BCAT_beta_family; 1.
DR Gene3D; 3.30.470.10; -; 1.
DR Gene3D; 3.20.10.10; D-amino Acid Aminotransferase, subunit A, domain 2; 1.
DR InterPro; IPR001544; Aminotrans_IV.
DR InterPro; IPR036038; Aminotransferase-like.
DR InterPro; IPR005786; B_amino_transII.
DR InterPro; IPR043132; BCAT-like_C.
DR InterPro; IPR043131; BCAT-like_N.
DR InterPro; IPR033939; BCAT_family.
DR NCBIfam; TIGR01123; ilvE_II; 1.
DR PANTHER; PTHR42825; AMINO ACID AMINOTRANSFERASE; 1.
DR PANTHER; PTHR42825:SF2; BRANCHED-CHAIN-AMINO-ACID AMINOTRANSFERASE 3, CHLOROPLASTIC-RELATED; 1.
DR Pfam; PF01063; Aminotran_4; 1.
DR PIRSF; PIRSF006468; BCAT1; 1.
DR SUPFAM; SSF56752; D-aminoacid aminotransferase-like PLP-dependent enzymes; 1.
PE 3: Inferred from homology;
KW Aminotransferase {ECO:0000256|ARBA:ARBA00022576,
KW ECO:0000313|EMBL:SDN10113.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000199309};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000313|EMBL:SDN10113.1}.
FT MOD_RES 184
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR006468-1"
SQ SEQUENCE 341 AA; 37771 MW; 49362BC664CE3EFF CRC64;
MEKVNLDWAS IGFNYRKTPQ RYVANYRNGK WENGYLTTDE TVVLHESAGI LQYCQEVFEG
LKAYTTQDGH IVAFRPDLNA ERMIDSAKRL EMPPYSKEMF LQAVVAVVKA NAAWVPPYGT
GASLYLRPYM FASGPVIGVK PSDEYQFRVF GTPVGPYFKG GAKPLTLCVS DFDRAAPKGT
GNVKAGLNYA MSLYPYVLAH QNGFDENIFL DSATRTYVEE TGGANILFVT KDNELVTPKS
DSILPSITRR SMLYIAEHYL GLKVTQRPVK LTEVEEFAEC GLCGTAAVIS PVGKVVDHGK
EICFPSGMEK MGPITQKLYD TLTGIQQGLI EAPKGWIKII D
//
