ID   GABT_MYCBO              Reviewed;         449 AA.
AC   P63505; A0A1R3Y220; Q50632; X2BL48;
DT   11-OCT-2004, integrated into UniProtKB/Swiss-Prot.
DT   11-OCT-2004, sequence version 1.
DT   27-MAR-2024, entry version 103.
DE   RecName: Full=4-aminobutyrate aminotransferase;
DE            EC=2.6.1.19;
DE   AltName: Full=(S)-3-amino-2-methylpropionate transaminase;
DE            EC=2.6.1.22;
DE   AltName: Full=GABA aminotransferase;
DE            Short=GABA-AT;
DE   AltName: Full=Gamma-amino-N-butyrate transaminase;
DE            Short=GABA transaminase;
DE   AltName: Full=Glutamate:succinic semialdehyde transaminase;
DE   AltName: Full=L-AIBAT;
GN   Name=gabT; OrderedLocusNames=BQ2027_MB2620;
OS   Mycobacterium bovis (strain ATCC BAA-935 / AF2122/97).
OC   Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Mycobacteriaceae;
OC   Mycobacterium; Mycobacterium tuberculosis complex.
OX   NCBI_TaxID=233413;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-935 / AF2122/97;
RX   PubMed=12788972; DOI=10.1073/pnas.1130426100;
RA   Garnier T., Eiglmeier K., Camus J.-C., Medina N., Mansoor H., Pryor M.,
RA   Duthoy S., Grondin S., Lacroix C., Monsempe C., Simon S., Harris B.,
RA   Atkin R., Doggett J., Mayes R., Keating L., Wheeler P.R., Parkhill J.,
RA   Barrell B.G., Cole S.T., Gordon S.V., Hewinson R.G.;
RT   "The complete genome sequence of Mycobacterium bovis.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:7877-7882(2003).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND GENOME REANNOTATION.
RC   STRAIN=ATCC BAA-935 / AF2122/97;
RX   PubMed=28385856; DOI=10.1128/genomea.00157-17;
RA   Malone K.M., Farrell D., Stuber T.P., Schubert O.T., Aebersold R.,
RA   Robbe-Austerman S., Gordon S.V.;
RT   "Updated reference genome sequence and annotation of Mycobacterium bovis
RT   AF2122/97.";
RL   Genome Announc. 5:E00157-E00157(2017).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2-oxoglutarate + 4-aminobutanoate = L-glutamate + succinate
CC         semialdehyde; Xref=Rhea:RHEA:23352, ChEBI:CHEBI:16810,
CC         ChEBI:CHEBI:29985, ChEBI:CHEBI:57706, ChEBI:CHEBI:59888; EC=2.6.1.19;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-3-amino-2-methylpropanoate + 2-oxoglutarate = 2-methyl-3-
CC         oxopropanoate + L-glutamate; Xref=Rhea:RHEA:13993, ChEBI:CHEBI:16810,
CC         ChEBI:CHEBI:29985, ChEBI:CHEBI:57700, ChEBI:CHEBI:58655; EC=2.6.1.22;
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC   -!- PATHWAY: Amino-acid degradation; 4-aminobutanoate degradation.
CC   -!- SIMILARITY: Belongs to the class-III pyridoxal-phosphate-dependent
CC       aminotransferase family. {ECO:0000305}.
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DR   EMBL; LT708304; SIU01238.1; -; Genomic_DNA.
DR   RefSeq; NP_856266.1; NC_002945.3.
DR   RefSeq; WP_003413395.1; NC_002945.4.
DR   AlphaFoldDB; P63505; -.
DR   SMR; P63505; -.
DR   GeneID; 45426591; -.
DR   PATRIC; fig|233413.5.peg.2881; -.
DR   UniPathway; UPA00733; -.
DR   Proteomes; UP000001419; Chromosome.
DR   GO; GO:0047298; F:(S)-3-amino-2-methylpropionate transaminase activity; IEA:UniProtKB-EC.
DR   GO; GO:0034386; F:4-aminobutyrate:2-oxoglutarate transaminase activity; IEA:UniProtKB-EC.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IEA:InterPro.
DR   GO; GO:0009450; P:gamma-aminobutyric acid catabolic process; IEA:UniProtKB-UniPathway.
DR   CDD; cd00610; OAT_like; 1.
DR   Gene3D; 3.90.1150.10; Aspartate Aminotransferase, domain 1; 1.
DR   Gene3D; 3.40.640.10; Type I PLP-dependent aspartate aminotransferase-like (Major domain); 1.
DR   InterPro; IPR004632; 4NH2But_aminotransferase_bac.
DR   InterPro; IPR005814; Aminotrans_3.
DR   InterPro; IPR049704; Aminotrans_3_PPA_site.
DR   InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR   InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR   InterPro; IPR015422; PyrdxlP-dep_Trfase_small.
DR   NCBIfam; TIGR00700; GABAtrnsam; 1.
DR   PANTHER; PTHR11986; AMINOTRANSFERASE CLASS III; 1.
DR   PANTHER; PTHR11986:SF58; LEUCINE_METHIONINE RACEMASE; 1.
DR   Pfam; PF00202; Aminotran_3; 1.
DR   PIRSF; PIRSF000521; Transaminase_4ab_Lys_Orn; 1.
DR   SUPFAM; SSF53383; PLP-dependent transferases; 1.
DR   PROSITE; PS00600; AA_TRANSFER_CLASS_3; 1.
PE   3: Inferred from homology;
KW   Aminotransferase; Pyridoxal phosphate; Reference proteome; Transferase.
FT   CHAIN           1..449
FT                   /note="4-aminobutyrate aminotransferase"
FT                   /id="PRO_0000120387"
FT   MOD_RES         294
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   449 AA;  46813 MW;  9EB88A968B3D8719 CRC64;
     MASLQQSRRL VTEIPGPASQ ALTHRRAAAV SSGVGVTLPV FVARAGGGIV EDVDGNRLID
     LGSGIAVTTI GNSSPRVVDA VRTQVAEFTH TCFMVTPYEG YVAVAEQLNR ITPGSGPKRS
     VLFNSGAEAV ENAVKIARSY TGKPAVVAFD HAYHGRTNLT MALTAKSMPY KSGFGPFAPE
     IYRAPLSYPY RDGLLDKQLA TNGELAAARA IGVIDKQVGA NNLAALVIEP IQGEGGFIVP
     AEGFLPALLD WCRKNHVVFI ADEVQTGFAR TGAMFACEHE GPDGLEPDLI CTAKGIADGL
     PLSAVTGRAE IMNAPHVGGL GGTFGGNPVA CAAALATIAT IESDGLIERA RQIERLVTDR
     LTTLQAVDDR IGDVRGRGAM IAVELVKSGT TEPDAGLTER LATAAHAAGV IILTCGMFGN
     IIRLLPPLTI GDELLSEGLD IVCAILADL
//