3N98

Crystal structure of TK1436, a GH57 branching enzyme from hyperthermophilic archaeon Thermococcus kodakaraensis, in complex with glucose and additives

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	DUF1957	e3n98A1	A: alpha bundles	X: immunoglobulin/albumin-binding domain-like	H: Families 57/38 glycoside transferase middle domain (From Topology)	T: Families 57/38 glycoside transferase middle domain	F: DUF1957	ECOD (1.6)
A	Glyco_hydro_57_1st	e3n98A2	A: a/b barrels	X: TIM beta/alpha-barrel	H: Glycoside hydrolase/deacetylase (From Topology)	T: Glycoside hydrolase/deacetylase	F: Glyco_hydro_57_1st	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.110.10	Alpha Beta	Alpha-Beta Barrel	7-stranded beta/alpha barrel	Glycoside hydrolase 38, N terminal domain	CATH (4.3.0)
A	1.20.1430.10	Mainly Alpha	Up-down Bundle	immunoglobulin/albumin-binding domain-like	Families 57/38 glycoside transferase, middle domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03065	Glycosyl hydrolase family 57 (Glyco_hydro_57)	Glycosyl hydrolase family 57	This family includes alpha-amylase (EC:3.2.1.1), 4--glucanotransferase (EC:2.4.1.-) and amylopullulanase enzymes.	Domain
A	PF09210	1,4-alpha-glucan branching enzyme, C-terminal (BE_C)	1,4-alpha-glucan branching enzyme, C-terminal	This entry represents the C-terminal domain found in bacterial 1,4-alpha-glucan branching enzymes, such as TTHA1902 from Thermus thermophilus and TK1436 from Thermococcus kodakarensis, which belong to the glycoside hydrolase family 57 (GH57). These e ...	This entry represents the C-terminal domain found in bacterial 1,4-alpha-glucan branching enzymes, such as TTHA1902 from Thermus thermophilus and TK1436 from Thermococcus kodakarensis, which belong to the glycoside hydrolase family 57 (GH57). These enzymes catalyse the formation of branch points in alpha-glucans by cleavage of an alpha-1,4 glycosidic bond and subsequent transfer of the cleaved-off oligosaccharide to a new alpha-1,6 position. This is an alpha-helical domain composed of a four alpha-helical bundle. It plays a role in the formation of the active-site cleft, being essential for substrate binding and catalysis [1,2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	alpha-amylase, GH57 family	glycosyltransferase activity transferase activity 1,4-alpha-glucan branching enzyme activity (using a glucosylated glycogenin as primer for glycogen synthesis) hexosyltransferase activity catalytic activity 1,4-alpha-glucan branching enzyme activity binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding	carbohydrate metabolic process glucan biosynthetic process polysaccharide biosynthetic process cellular biosynthetic process carbohydrate biosynthetic process cellular metabolic process primary metabolic process macromolecule biosynthetic process alpha-glucan metabolic process polysaccharide metabolic process organic substance metabolic process glucan metabolic process biosynthetic process organic substance biosynthetic process carbohydrate metabolic process glucan biosynthetic process polysaccharide biosynthetic process cellular biosynthetic process carbohydrate biosynthetic process cellular metabolic process primary metabolic process macromolecule biosynthetic process alpha-glucan metabolic process polysaccharide metabolic process organic substance metabolic process glucan metabolic process biosynthetic process organic substance biosynthetic process alpha-glucan biosynthetic process metabolic process cellular process macromolecule metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR011330	Glycoside hydrolase/deacetylase, beta/alpha-barrel	Homologous Superfamily
A	IPR037090	Glycoside hydrolase families 57, central domain	Homologous Superfamily
A	IPR040042	1,4-alpha-glucan branching enzyme MT3115-like	Family
A	IPR028995	Glycoside hydrolase families 57/38, central domain superfamily	Homologous Superfamily
A	IPR015293	1,4-alpha-glucan branching enzyme, C-terminal	Domain
A	IPR004300	Glycoside hydrolase family 57, N-terminal domain	Domain
A	IPR027291	Glycoside hydrolase 38, N-terminal domain superfamily	Homologous Superfamily
A	IPR010995	DNA repair Rad51/transcription factor NusA, alpha-helical	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.