ID M4U6S3_9GAMM Unreviewed; 397 AA.
AC M4U6S3;
DT 29-MAY-2013, integrated into UniProtKB/TrEMBL.
DT 29-MAY-2013, sequence version 1.
DT 27-MAR-2024, entry version 56.
DE RecName: Full=2-amino-3-ketobutyrate coenzyme A ligase {ECO:0000256|HAMAP-Rule:MF_00985};
DE Short=AKB ligase {ECO:0000256|HAMAP-Rule:MF_00985};
DE EC=2.3.1.29 {ECO:0000256|HAMAP-Rule:MF_00985};
DE AltName: Full=Glycine acetyltransferase {ECO:0000256|HAMAP-Rule:MF_00985};
GN Name=kbl {ECO:0000256|HAMAP-Rule:MF_00985};
GN ORFNames=PCNPT3_06890 {ECO:0000313|EMBL:AGH81316.1};
OS Psychromonas sp. CNPT3.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC Psychromonadaceae; Psychromonas.
OX NCBI_TaxID=314282 {ECO:0000313|EMBL:AGH81316.1, ECO:0000313|Proteomes:UP000010320};
RN [1] {ECO:0000313|EMBL:AGH81316.1, ECO:0000313|Proteomes:UP000010320}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CNPT3 {ECO:0000313|EMBL:AGH81316.1,
RC ECO:0000313|Proteomes:UP000010320};
RA Lauro F.M., Chastain R.A., Stratton T.K., Ferriera S., Johnson J.,
RA Yayanos A.A., Bartlett D.H.;
RT "The complete genome sequence of the deep-sea bacterium Psychromonas
RT CNPT2.";
RL Submitted (MAR-2013) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalyzes the cleavage of 2-amino-3-ketobutyrate to glycine
CC and acetyl-CoA. {ECO:0000256|HAMAP-Rule:MF_00985}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=acetyl-CoA + glycine = (2S)-2-amino-3-oxobutanoate + CoA;
CC Xref=Rhea:RHEA:20736, ChEBI:CHEBI:57287, ChEBI:CHEBI:57288,
CC ChEBI:CHEBI:57305, ChEBI:CHEBI:78948; EC=2.3.1.29;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00985};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00985};
CC Note=Binds 1 pyridoxal phosphate per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_00985};
CC -!- PATHWAY: Amino-acid degradation; L-threonine degradation via oxydo-
CC reductase pathway; glycine from L-threonine: step 2/2.
CC {ECO:0000256|HAMAP-Rule:MF_00985}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00985}.
CC -!- SIMILARITY: Belongs to the class-II pyridoxal-phosphate-dependent
CC aminotransferase family. {ECO:0000256|HAMAP-Rule:MF_00985}.
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DR EMBL; CP004404; AGH81316.1; -; Genomic_DNA.
DR RefSeq; WP_015465195.1; NC_020802.1.
DR AlphaFoldDB; M4U6S3; -.
DR STRING; 314282.PCNPT3_06890; -.
DR KEGG; psy:PCNPT3_06890; -.
DR eggNOG; COG0156; Bacteria.
DR HOGENOM; CLU_015846_11_0_6; -.
DR OrthoDB; 9807157at2; -.
DR UniPathway; UPA00046; UER00506.
DR Proteomes; UP000010320; Chromosome.
DR GO; GO:0008890; F:glycine C-acetyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0016874; F:ligase activity; IEA:UniProtKB-KW.
DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:UniProtKB-UniRule.
DR GO; GO:0009058; P:biosynthetic process; IEA:InterPro.
DR GO; GO:0019518; P:L-threonine catabolic process to glycine; IEA:UniProtKB-UniRule.
DR CDD; cd06454; KBL_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 HAMAP; MF_00985; 2am3keto_CoA_ligase; 1.
DR InterPro; IPR011282; 2am3keto_CoA_ligase.
DR InterPro; IPR001917; Aminotrans_II_pyridoxalP_BS.
DR InterPro; IPR004839; Aminotransferase_I/II.
DR InterPro; IPR015424; PyrdxlP-dep_Trfase.
DR InterPro; IPR015421; PyrdxlP-dep_Trfase_major.
DR InterPro; IPR015422; PyrdxlP-dep_Trfase_small.
DR NCBIfam; TIGR01822; 2am3keto_CoA; 1.
DR PANTHER; PTHR13693:SF103; 2-AMINO-3-KETOBUTYRATE COENZYME A LIGASE; 1.
DR PANTHER; PTHR13693; CLASS II AMINOTRANSFERASE/8-AMINO-7-OXONONANOATE SYNTHASE; 1.
DR Pfam; PF00155; Aminotran_1_2; 1.
DR SUPFAM; SSF53383; PLP-dependent transferases; 1.
DR PROSITE; PS00599; AA_TRANSFER_CLASS_2; 1.
PE 3: Inferred from homology;
KW Acyltransferase {ECO:0000256|HAMAP-Rule:MF_00985,
KW ECO:0000313|EMBL:AGH81316.1}; Ligase {ECO:0000313|EMBL:AGH81316.1};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW Rule:MF_00985}; Reference proteome {ECO:0000313|Proteomes:UP000010320};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_00985, ECO:0000313|EMBL:AGH81316.1}.
FT DOMAIN 43..386
FT /note="Aminotransferase class I/classII"
FT /evidence="ECO:0000259|Pfam:PF00155"
FT BINDING 111..112
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00985"
FT BINDING 136
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00985"
FT BINDING 185
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00985"
FT BINDING 210..213
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00985"
FT BINDING 241..244
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /ligand_note="ligand shared between dimeric partners"
FT /note="in other chain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00985"
FT BINDING 274..275
FT /ligand="pyridoxal 5'-phosphate"
FT /ligand_id="ChEBI:CHEBI:597326"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00985"
FT BINDING 368
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00985"
FT MOD_RES 244
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00985"
SQ SEQUENCE 397 AA; 43154 MW; 4BDC86C6EC091A72 CRC64;
MSQKFYQQMK DQLAQVRAEG LYKSERLISS AQNASVTLEG GAKVVNFCAN NYLGLANHPT
LIEAAKQGLD NQGFGMASVR FICGTQDKHK ELEAKLATFL GKEDTILYTS CFDANAGLFE
TLLNAEDAII SDALNHASII DGVRLCKAQR FRYANNDMDA LEVQLKAADA AGVRHKLIVT
DGVFSMDGIV ANLPAICDLA DKYDALVMVD DSHAVGFMGE NGRGTHEFHN VMQRVDIITG
TLGKAMGGAS GGYTVAKKEV VDWLRQRSRP YLFSNSLAPC IVSASIAVID LLAQSGGLRE
QLWENSRQFR ERMSVAGFTL AGQDHAIIPI MLGDAKVAAE FAQRALEKGI FVVAFSFPVV
PKGQARIRTQ MSAAHTQAQL DKAINVFIEV GKEMNLI
//
