ID Q7TV00_PROMM Unreviewed; 306 AA.
AC Q7TV00;
DT 01-OCT-2003, integrated into UniProtKB/TrEMBL.
DT 01-OCT-2003, sequence version 1.
DT 27-MAR-2024, entry version 112.
DE RecName: Full=Branched-chain-amino-acid aminotransferase {ECO:0000256|RuleBase:RU004517};
DE Short=BCAT {ECO:0000256|RuleBase:RU364094};
DE EC=2.6.1.42 {ECO:0000256|RuleBase:RU004517};
GN Name=ilvE {ECO:0000256|RuleBase:RU364094,
GN ECO:0000313|EMBL:CAE20903.1};
GN OrderedLocusNames=PMT_0728 {ECO:0000313|EMBL:CAE20903.1};
OS Prochlorococcus marinus (strain MIT 9313).
OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales;
OC Prochlorococcaceae; Prochlorococcus.
OX NCBI_TaxID=74547 {ECO:0000313|EMBL:CAE20903.1, ECO:0000313|Proteomes:UP000001423};
RN [1] {ECO:0000313|EMBL:CAE20903.1, ECO:0000313|Proteomes:UP000001423}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MIT 9313 {ECO:0000313|Proteomes:UP000001423};
RX PubMed=12917642; DOI=10.1038/nature01947;
RA Rocap G., Larimer F.W., Lamerdin J.E., Malfatti S., Chain P., Ahlgren N.A.,
RA Arellano A., Coleman M., Hauser L., Hess W.R., Johnson Z.I., Land M.L.,
RA Lindell D., Post A.F., Regala W., Shah M., Shaw S.L., Steglich C.,
RA Sullivan M.B., Ting C.S., Tolonen A., Webb E.A., Zinser E.R.,
RA Chisholm S.W.;
RT "Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche
RT differentiation.";
RL Nature 424:1042-1047(2003).
CC -!- FUNCTION: Acts on leucine, isoleucine and valine.
CC {ECO:0000256|ARBA:ARBA00003109, ECO:0000256|RuleBase:RU364094}.
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 ECO:0000256|RuleBase:RU004517};
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 ECO:0000256|RuleBase:RU004517};
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 ECO:0000256|RuleBase:RU004517};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933,
CC ECO:0000256|RuleBase:RU004516};
CC -!- PATHWAY: Amino-acid biosynthesis; L-isoleucine biosynthesis; L-
CC isoleucine from 2-oxobutanoate: step 4/4.
CC {ECO:0000256|ARBA:ARBA00004824, ECO:0000256|RuleBase:RU364094}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-leucine biosynthesis; L-leucine
CC from 3-methyl-2-oxobutanoate: step 4/4. {ECO:0000256|ARBA:ARBA00005072,
CC ECO:0000256|RuleBase:RU364094}.
CC -!- PATHWAY: Amino-acid biosynthesis; L-valine biosynthesis; L-valine from
CC pyruvate: step 4/4. {ECO:0000256|ARBA:ARBA00004931,
CC ECO:0000256|RuleBase:RU364094}.
CC -!- SIMILARITY: Belongs to the class-IV pyridoxal-phosphate-dependent
CC aminotransferase family. {ECO:0000256|ARBA:ARBA00009320,
CC ECO:0000256|RuleBase:RU004106}.
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DR EMBL; BX548175; CAE20903.1; -; Genomic_DNA.
DR RefSeq; WP_011130106.1; NC_005071.1.
DR AlphaFoldDB; Q7TV00; -.
DR KEGG; pmt:PMT_0728; -.
DR eggNOG; COG0115; Bacteria.
DR HOGENOM; CLU_020844_3_1_3; -.
DR OrthoDB; 9805628at2; -.
DR UniPathway; UPA00047; UER00058.
DR UniPathway; UPA00048; UER00073.
DR UniPathway; UPA00049; UER00062.
DR Proteomes; UP000001423; Chromosome.
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:0050048; F:L-leucine:2-oxoglutarate aminotransferase activity; IEA:RHEA.
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; IPR018300; Aminotrans_IV_CS.
DR InterPro; IPR036038; Aminotransferase-like.
DR InterPro; IPR005785; B_amino_transI.
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; TIGR01122; ilvE_I; 1.
DR PANTHER; PTHR42825; AMINO ACID AMINOTRANSFERASE; 1.
DR PANTHER; PTHR42825:SF7; BRANCHED-CHAIN-AMINO-ACID AMINOTRANSFERASE; 1.
DR Pfam; PF01063; Aminotran_4; 1.
DR SUPFAM; SSF56752; D-aminoacid aminotransferase-like PLP-dependent enzymes; 1.
DR PROSITE; PS00770; AA_TRANSFER_CLASS_4; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|RuleBase:RU004517};
KW Aminotransferase {ECO:0000256|ARBA:ARBA00022576,
KW ECO:0000256|RuleBase:RU004517};
KW Branched-chain amino acid biosynthesis {ECO:0000256|RuleBase:RU004517};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898,
KW ECO:0000256|RuleBase:RU004516};
KW Reference proteome {ECO:0000313|Proteomes:UP000001423};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|RuleBase:RU004517}.
SQ SEQUENCE 306 AA; 34031 MW; D75F1DCF557BFC2A CRC64;
MHQFLPYAWF QGACVPFEEA KISVATHALH YGTGAFGGMR AIPDPQNSNT MLLFRADRHA
KRLSQSARLL LTELSETRIL SALEAMLQAN RPTTPIYLRP FVYTSDLGIA PRLHNIETDF
LIYGLELGDY LSPEGVSCRI SSFTRQEDRS LPLRGKISGA YITSSLAKTE AVLSGFGEAL
LLNSRGKISE ASGMNLFLVR DGQLITPGVD QDILEGITRS SVLELARVMG LSVIERPVDK
TELFIADEVF LTGTAAKITP IRQIESTILA TERPIMNALR DRLIEITQGR DKDYEHWITR
ICMTND
//
