ID D9VN56_9ACTN Unreviewed; 382 AA.
AC D9VN56;
DT 05-OCT-2010, integrated into UniProtKB/TrEMBL.
DT 05-OCT-2010, 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=SSNG_00814 {ECO:0000313|EMBL:EFL13562.1};
OS Streptomyces sp. C.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=253839 {ECO:0000313|EMBL:EFL13562.1, ECO:0000313|Proteomes:UP000005763};
RN [1] {ECO:0000313|EMBL:EFL13562.1, ECO:0000313|Proteomes:UP000005763}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=C {ECO:0000313|EMBL:EFL13562.1,
RC ECO:0000313|Proteomes:UP000005763};
RG The Broad Institute Genome Sequencing Platform;
RG Broad Institute Microbial Sequencing Center;
RA Fischbach M., Godfrey P., Ward D., Young S., Zeng Q., Koehrsen M.,
RA Alvarado L., Berlin A.M., Bochicchio J., Borenstein D., Chapman S.B.,
RA Chen Z., Engels R., Freedman E., Gellesch M., Goldberg J., Griggs A.,
RA Gujja S., Heilman E.R., Heiman D.I., Hepburn T.A., Howarth C., Jen D.,
RA Larson L., Lewis B., Mehta T., Park D., Pearson M., Richards J.,
RA Roberts A., Saif S., Shea T.D., Shenoy N., Sisk P., Stolte C., Sykes S.N.,
RA Thomson T., Walk T., White J., Yandava C., Straight P., Clardy J., Hung D.,
RA Kolter R., Mekalanos J., Walker S., Walsh C.T., Wieland-Brown L.C.,
RA Haas B., Nusbaum C., Birren B.;
RT "Annotation of Streptomyces sp. strain C.";
RL Submitted (FEB-2009) 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=6-carboxyhexanoyl-[ACP] + H(+) + L-alanine = (8S)-8-amino-7-
CC oxononanoate + CO2 + holo-[ACP]; Xref=Rhea:RHEA:42288, Rhea:RHEA-
CC COMP:9685, Rhea:RHEA-COMP:9955, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526,
CC ChEBI:CHEBI:57972, ChEBI:CHEBI:64479, ChEBI:CHEBI:78846,
CC ChEBI:CHEBI:149468; EC=2.3.1.47;
CC Evidence={ECO:0000256|ARBA:ARBA00034067};
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; GG657750; EFL13562.1; -; Genomic_DNA.
DR AlphaFoldDB; D9VN56; -.
DR STRING; 253839.SSNG_00814; -.
DR eggNOG; COG0156; Bacteria.
DR HOGENOM; CLU_015846_11_0_11; -.
DR UniPathway; UPA00046; UER00506.
DR Proteomes; UP000005763; Unassembled WGS sequence.
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 Ligase {ECO:0000313|EMBL:EFL13562.1};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW Rule:MF_00985}; Transferase {ECO:0000256|HAMAP-Rule:MF_00985}.
FT DOMAIN 26..370
FT /note="Aminotransferase class I/classII"
FT /evidence="ECO:0000259|Pfam:PF00155"
FT BINDING 94..95
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 119
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00985"
FT BINDING 168
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 193..196
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 224..227
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 257..258
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 351
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00985"
FT MOD_RES 227
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00985"
SQ SEQUENCE 382 AA; 40485 MW; AD42A20A1F28EAAC CRC64;
MHKPERVIGT PQNAAVAVTA GGAPGEVLNF CANNYLGLAD HPEVVAAAKD ALDRWGYGMA
SVRFICGTQE VHKELEARLS AFLGQEDTIL YSSCFDANGG VFETLLGAED AVISDALNHA
SIIDGIRLSK ARRFRYANRD MAELEARLKE ASEGGARRKL IVTDGVFSMD GYVAPLQEIC
DLADRYDAMV MVDDSHAVGF VGPGGRGTPE LHGVMDRIDI ITGTLGKALG GASGGYVAAR
AEIVELLRQR SRPYLFSNSL APVIAAASLK VLDLLESAGD LRERLAANTK LFRTKMTEAG
FEILPGDHAI APVMIGDAAE AGRMAELLLE RGVYVIGFSY PVVPLGAARI RVQLSAAHST
ADVERAVAAF VDARAALSAA QG
//
