Annotations: 3LQ4

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3lq4a1	Alpha and beta proteins (a/b)	Thiamin diphosphate-binding fold (THDP-binding)	Thiamin diphosphate-binding fold (THDP-binding)	TK-like PP module	automated matches	(Escherichia coli O157:H7 ) [TaxId: 83334 ],	SCOPe (2.08)
A	d3lq4a2	Alpha and beta proteins (a/b)	Thiamin diphosphate-binding fold (THDP-binding)	Thiamin diphosphate-binding fold (THDP-binding)	automated matches	automated matches	(Escherichia coli O157:H7 ) [TaxId: 83334 ],	SCOPe (2.08)
A	d3lq4a3	Alpha and beta proteins (a/b)	TK C-terminal domain-like	TK C-terminal domain-like	automated matches	automated matches	(Escherichia coli O157:H7 ) [TaxId: 83334 ],	SCOPe (2.08)
B	d3lq4b1	Alpha and beta proteins (a/b)	Thiamin diphosphate-binding fold (THDP-binding)	Thiamin diphosphate-binding fold (THDP-binding)	TK-like PP module	automated matches	(Escherichia coli O157:H7 ) [TaxId: 83334 ],	SCOPe (2.08)
B	d3lq4b2	Alpha and beta proteins (a/b)	Thiamin diphosphate-binding fold (THDP-binding)	Thiamin diphosphate-binding fold (THDP-binding)	automated matches	automated matches	(Escherichia coli O157:H7 ) [TaxId: 83334 ],	SCOPe (2.08)
B	d3lq4b3	Alpha and beta proteins (a/b)	TK C-terminal domain-like	TK C-terminal domain-like	automated matches	automated matches	(Escherichia coli O157:H7 ) [TaxId: 83334 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Transketolase_C_1	e3lq4A3	A: a/b three-layered sandwiches	X: TK C-terminal domain-like (From Topology)	H: TK C-terminal domain-like (From Topology)	T: TK C-terminal domain-like	F: Transketolase_C_1	ECOD (1.6)
A	Transketolase_N	e3lq4A4	A: a/b three-layered sandwiches	X: Thiamin diphosphate-binding fold (THDP-binding) (From Topology)	H: Thiamin diphosphate-binding fold (THDP-binding) (From Topology)	T: Thiamin diphosphate-binding fold (THDP-binding)	F: Transketolase_N	ECOD (1.6)
A	aceE	e3lq4A2	A: a/b three-layered sandwiches	X: Thiamin diphosphate-binding fold (THDP-binding) (From Topology)	H: Thiamin diphosphate-binding fold (THDP-binding) (From Topology)	T: Thiamin diphosphate-binding fold (THDP-binding)	F: aceE	ECOD (1.6)
B	Transketolase_C_1	e3lq4B3	A: a/b three-layered sandwiches	X: TK C-terminal domain-like (From Topology)	H: TK C-terminal domain-like (From Topology)	T: TK C-terminal domain-like	F: Transketolase_C_1	ECOD (1.6)
B	Transketolase_N	e3lq4B4	A: a/b three-layered sandwiches	X: Thiamin diphosphate-binding fold (THDP-binding) (From Topology)	H: Thiamin diphosphate-binding fold (THDP-binding) (From Topology)	T: Thiamin diphosphate-binding fold (THDP-binding)	F: Transketolase_N	ECOD (1.6)
B	aceE	e3lq4B1	A: a/b three-layered sandwiches	X: Thiamin diphosphate-binding fold (THDP-binding) (From Topology)	H: Thiamin diphosphate-binding fold (THDP-binding) (From Topology)	T: Thiamin diphosphate-binding fold (THDP-binding)	F: aceE	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.970	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains	CATH (4.3.0)
A	3.40.50.920	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
B	3.40.50.970	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains	CATH (4.3.0)
B	3.40.50.920	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF17831	Pyruvate dehydrogenase E1 component middle domain (PDH_E1_M)	Pyruvate dehydrogenase E1 component middle domain	This entry represents one of the thiamin diphosphate-binding domains found in pyruvate dehydrogenase E1 component [1].	Domain
A, B	PF00456	Transketolase, thiamine diphosphate binding domain (Transketolase_N)	Transketolase, thiamine diphosphate binding domain	This family includes transketolase enzymes EC:2.2.1.1. and also partially matches to 2-oxoisovalerate dehydrogenase beta subunit Swiss:P37941 EC:1.2.4.4. Both these enzymes utilise thiamine pyrophosphate as a cofactor, suggesting there may be common ...	This family includes transketolase enzymes EC:2.2.1.1. and also partially matches to 2-oxoisovalerate dehydrogenase beta subunit Swiss:P37941 EC:1.2.4.4. Both these enzymes utilise thiamine pyrophosphate as a cofactor, suggesting there may be common aspects in their mechanism of catalysis.	Domain
A, B	PF22613	Transketolase-like TK C-terminal domain (Transketolase_C_1)	Transketolase-like TK C-terminal domain	This entry represents the C-terminal domain found in transketolase and transketolase-like enzymes [1-5], such as pyruvate dehydrogenase E1 component (OPD1) [4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Pyruvate dehydrogenase E1 component	oxidoreductase activity, acting on the aldehyde or oxo group of donors, disulfide as acceptor oxidoreductase activity pyruvate dehydrogenase (acetyl-transferring) activity oxidoreductase activity, acting on the aldehyde or oxo group of donors pyruvate dehydrogenase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR005474	Transketolase, N-terminal	Domain
A, B	IPR004660	Pyruvate dehydrogenase E1 component	Family
A, B	IPR051157	Pyruvate Dehydrogenase/Transketolase	Family
A, B	IPR035807	Pyruvate dehydrogenase E1 component, N-terminal	Domain
A, B	IPR029061	Thiamin diphosphate-binding fold	Homologous Superfamily
A, B	IPR009014	Transketolase C-terminal/Pyruvate-ferredoxin oxidoreductase domain II	Homologous Superfamily
A, B	IPR041621	Pyruvate dehydrogenase E1 component, middle domain	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 R01GM133198.