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ECTB_VIBPA
ID   ECTB_VIBPA              Reviewed;         421 AA.
AC   Q87NZ7;
DT   01-FEB-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   25-MAY-2022, entry version 106.
DE   RecName: Full=Diaminobutyrate--2-oxoglutarate transaminase;
DE            EC=2.6.1.76;
DE   AltName: Full=DABA aminotransferase;
DE   AltName: Full=Diaminobutyrate--2-oxoglutarate aminotransferase;
DE   AltName: Full=L-2,4-diaminobutyric acid transaminase;
GN   Name=ectB; OrderedLocusNames=VP1721;
OS   Vibrio parahaemolyticus serotype O3:K6 (strain RIMD 2210633).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Vibrio.
OX   NCBI_TaxID=223926;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RIMD 2210633;
RX   PubMed=12620739; DOI=10.1016/s0140-6736(03)12659-1;
RA   Makino K., Oshima K., Kurokawa K., Yokoyama K., Uda T., Tagomori K.,
RA   Iijima Y., Najima M., Nakano M., Yamashita A., Kubota Y., Kimura S.,
RA   Yasunaga T., Honda T., Shinagawa H., Hattori M., Iida T.;
RT   "Genome sequence of Vibrio parahaemolyticus: a pathogenic mechanism
RT   distinct from that of V. cholerae.";
RL   Lancet 361:743-749(2003).
CC   -!- FUNCTION: Catalyzes reversively the conversion of L-aspartate beta-
CC       semialdehyde (ASA) to L-2,4-diaminobutyrate (DABA) by transamination
CC       with L-glutamate. {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2-oxoglutarate + L-2,4-diaminobutanoate = L-aspartate 4-
CC         semialdehyde + L-glutamate; Xref=Rhea:RHEA:11160, ChEBI:CHEBI:16810,
CC         ChEBI:CHEBI:29985, ChEBI:CHEBI:58761, ChEBI:CHEBI:537519;
CC         EC=2.6.1.76;
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000250};
CC   -!- PATHWAY: Amine and polyamine biosynthesis; ectoine biosynthesis; L-
CC       ectoine from L-aspartate 4-semialdehyde: step 1/3.
CC   -!- SIMILARITY: Belongs to the class-III pyridoxal-phosphate-dependent
CC       aminotransferase family. {ECO:0000305}.
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DR   EMBL; BA000031; BAC59984.1; -; Genomic_DNA.
DR   RefSeq; NP_798100.1; NC_004603.1.
DR   RefSeq; WP_005464458.1; NC_004603.1.
DR   AlphaFoldDB; Q87NZ7; -.
DR   SMR; Q87NZ7; -.
DR   STRING; 223926.28806713; -.
DR   EnsemblBacteria; BAC59984; BAC59984; BAC59984.
DR   GeneID; 1189228; -.
DR   KEGG; vpa:VP1721; -.
DR   PATRIC; fig|223926.6.peg.1641; -.
DR   eggNOG; COG0160; Bacteria.
DR   HOGENOM; CLU_016922_10_0_6; -.
DR   OMA; ELDQWKP; -.
DR   UniPathway; UPA00067; UER00121.
DR   Proteomes; UP000002493; Chromosome 1.
DR   GO; GO:0045303; F:diaminobutyrate-2-oxoglutarate transaminase activity; IEA:UniProtKB-EC.
DR   GO; GO:0047307; F:diaminobutyrate-pyruvate transaminase activity; IEA:InterPro.
DR   GO; GO:0030170; F:pyridoxal phosphate binding; IEA:InterPro.
DR   GO; GO:0019491; P:ectoine biosynthetic process; IEA:UniProtKB-UniPathway.
DR   CDD; cd00610; OAT_like; 1.
DR   Gene3D; 3.40.640.10; -; 1.
DR   Gene3D; 3.90.1150.10; -; 1.
DR   InterPro; IPR005814; Aminotrans_3.
DR   InterPro; IPR004637; Dat.
DR   InterPro; IPR012773; Ectoine_EctB.
DR   InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR   InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR   InterPro; IPR015422; PyrdxlP-dep_Trfase_small.
DR   PANTHER; PTHR43552; PTHR43552; 1.
DR   PANTHER; PTHR43552:SF2; PTHR43552:SF2; 1.
DR   Pfam; PF00202; Aminotran_3; 1.
DR   PIRSF; PIRSF000521; Transaminase_4ab_Lys_Orn; 1.
DR   SUPFAM; SSF53383; SSF53383; 1.
DR   TIGRFAMs; TIGR00709; dat; 1.
DR   TIGRFAMs; TIGR02407; ectoine_ectB; 1.
DR   PROSITE; PS00600; AA_TRANSFER_CLASS_3; 1.
PE   3: Inferred from homology;
KW   Aminotransferase; Pyridoxal phosphate; Reference proteome; Transferase.
FT   CHAIN           1..421
FT                   /note="Diaminobutyrate--2-oxoglutarate transaminase"
FT                   /id="PRO_0000120531"
FT   MOD_RES         262
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   421 AA;  45926 MW;  BEA9B5AD1D193770 CRC64;
     MDIFKKQESN VRSYSNNFPV VFRKAKGCWL ETEQGERYLD FLAGAGSLNY GHNNPVLKQA
     LLEYIEMDGI THGLDMHSEA KAGFLAALDN YILKPRKLDY KVQFTGPTGT NAVEAALKLA
     KKVKGRSSVV AFTNGFHGCT AGALAATGNQ HHRQGNGSSL TNVTRIPFEG YAGVDGLALF
     ETMLNDNSAG MDKPAAVLLE TVQGEGGLNA ASNEWLQRLS KICKANDILL IVDDIQAGCG
     RTGTFFSFEP SGIEPDIVTL SKSIGGYGLP MAVVLLKPEL DQWKPGEHNG TFRGNNHAFI
     TAAKALEIYW SNDDFETHIK QCSQNVSEVI DRCVRRFPQM FVQKKGRGMM IGIECIHGDL
     AAEIAKACFD DGMVIETAGP DDEVVKFFCP LTISESELNQ GLSIFERAVE TIAAKHFKQA
     S
 
 
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