2IHW | pdb_00002ihw

Crystal structure of a cubic core of the dihydrolipoamide acyltransferase (E2b) component in the branched-chain alpha-ketoacid dehydrogenase complex (BCKDC), apo form

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d2ihwb_	Alpha and beta proteins (a/b)	CoA-dependent acyltransferases	CoA-dependent acyltransferases	automated matches	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
C	d2ihwc_	Alpha and beta proteins (a/b)	CoA-dependent acyltransferases	CoA-dependent acyltransferases	automated matches	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
E	d2ihwe_	Alpha and beta proteins (a/b)	CoA-dependent acyltransferases	CoA-dependent acyltransferases	automated matches	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
F	d2ihwf_	Alpha and beta proteins (a/b)	CoA-dependent acyltransferases	CoA-dependent acyltransferases	automated matches	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
H	d2ihwh_	Alpha and beta proteins (a/b)	CoA-dependent acyltransferases	CoA-dependent acyltransferases	automated matches	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
G	d2ihwg_	Alpha and beta proteins (a/b)	CoA-dependent acyltransferases	CoA-dependent acyltransferases	automated matches	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
D	d2ihwd_	Alpha and beta proteins (a/b)	CoA-dependent acyltransferases	CoA-dependent acyltransferases	automated matches	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
A	d2ihwa_	Alpha and beta proteins (a/b)	CoA-dependent acyltransferases	CoA-dependent acyltransferases	automated matches	automated matches	cattle (Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	CoA-dependent acyltransferases	8076201	3000272	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	CoA-dependent acyltransferases	8076201	3000272	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	CoA-dependent acyltransferases	8076201	3000272	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	CoA-dependent acyltransferases	8076201	3000272	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	CoA-dependent acyltransferases	8076201	3000272	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	CoA-dependent acyltransferases	8076201	3000272	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	CoA-dependent acyltransferases	8076201	3000272	SCOP2B (2022-06-29)
A	SCOP2 Family	CAT-like	8076200	4000430	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	CoA-dependent acyltransferases	8076201	3000272	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B		e2ihwB1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: Sigma70_r4_2	F:	ECOD (20:10:01)
C		e2ihwC1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: Sigma70_r4_2	F:	ECOD (20:10:01)
E		e2ihwE1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: Sigma70_r4_2	F:	ECOD (20:10:01)
F		e2ihwF1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: Sigma70_r4_2	F:	ECOD (20:10:01)
H		e2ihwH1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: Sigma70_r4_2	F:	ECOD (20:10:01)
G		e2ihwG1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: Sigma70_r4_2	F:	ECOD (20:10:01)
D		e2ihwD1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: Sigma70_r4_2	F:	ECOD (20:10:01)
A		e2ihwA1	A: Profilin-like	X: Immunoglobulin-related	H: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	T: Transketolase_C	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.559.10	Alpha Beta	2-Layer Sandwich	Chloramphenicol Acetyltransferase	Chloramphenicol acetyltransferase-like domain	CATH (4.3.0)
C	3.30.559.10	Alpha Beta	2-Layer Sandwich	Chloramphenicol Acetyltransferase	Chloramphenicol acetyltransferase-like domain	CATH (4.3.0)
E	3.30.559.10	Alpha Beta	2-Layer Sandwich	Chloramphenicol Acetyltransferase	Chloramphenicol acetyltransferase-like domain	CATH (4.3.0)
F	3.30.559.10	Alpha Beta	2-Layer Sandwich	Chloramphenicol Acetyltransferase	Chloramphenicol acetyltransferase-like domain	CATH (4.3.0)
H	3.30.559.10	Alpha Beta	2-Layer Sandwich	Chloramphenicol Acetyltransferase	Chloramphenicol acetyltransferase-like domain	CATH (4.3.0)
G	3.30.559.10	Alpha Beta	2-Layer Sandwich	Chloramphenicol Acetyltransferase	Chloramphenicol acetyltransferase-like domain	CATH (4.3.0)
D	3.30.559.10	Alpha Beta	2-Layer Sandwich	Chloramphenicol Acetyltransferase	Chloramphenicol acetyltransferase-like domain	CATH (4.3.0)
A	3.30.559.10	Alpha Beta	2-Layer Sandwich	Chloramphenicol Acetyltransferase	Chloramphenicol acetyltransferase-like domain	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, G, H	Lipoamide acyltransferase component of branched-chain alpha-keto acid dehydrogenase complex	dihydrolipoamide branched chain acyltransferase activity acyltransferase activity acyltransferase activity, transferring groups other than amino-acyl groups transferase activity catalytic activity	catabolic process oxoacid metabolic process amino acid metabolic process organic acid catabolic process organic acid metabolic process branched-chain amino acid catabolic process nucleobase-containing compound metabolic process acyl-CoA metabolic process carboxylic acid catabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process small molecule metabolic process branched-chain amino acid metabolic process sulfur compound metabolic process catabolic process oxoacid metabolic process amino acid metabolic process organic acid catabolic process organic acid metabolic process branched-chain amino acid catabolic process nucleobase-containing compound metabolic process acyl-CoA metabolic process carboxylic acid catabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process small molecule metabolic process branched-chain amino acid metabolic process sulfur compound metabolic process fatty-acyl-CoA metabolic process phosphorus metabolic process amino acid catabolic process branched-chain alpha-keto acid decarboxylation to branched-chain acyl-CoA nucleoside phosphate metabolic process carboxylic acid metabolic process primary metabolic process purine-containing compound metabolic process fatty acid derivative metabolic process organophosphate metabolic process metabolic process cellular process small molecule catabolic process lipid metabolic process	protein-containing complex catalytic complex branched-chain alpha-ketoacid dehydrogenase complex oxidoreductase complex transferase complex alpha-ketoacid dehydrogenase complex membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle protein-containing complex catalytic complex branched-chain alpha-ketoacid dehydrogenase complex oxidoreductase complex transferase complex alpha-ketoacid dehydrogenase complex membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle cytosol membrane-enclosed lumen mitochondrial matrix intracellular organelle lumen organelle lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H	IPR001078	2-oxoacid dehydrogenase acyltransferase, catalytic domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	IPR023213	Chloramphenicol acetyltransferase-like domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H	IPR036625	E3-binding domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H	IPR050743	2-oxoacid dehydrogenase family, E2 component	Family
A, B, C, D, E A, B, C, D, E, F, G, H	IPR004167	Peripheral subunit-binding domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	IPR011053	Single hybrid motif	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H	IPR003016	2-oxo acid dehydrogenase, lipoyl-binding site	Binding Site
A, B, C, D, E A, B, C, D, E, F, G, H	IPR000089	Biotin/lipoyl attachment	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.