4ZEM | pdb_00004zem

Crystal structure of eIF2B beta from Chaetomium thermophilum

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)
B	IF-2B	e4zemB1	A: a/b three-layered sandwiches	X: Hsp90 co-chaperone CDC37 middle domain	H: Nucleoplasmin-like/VP (viral coat and capsid proteins)	T: Nucleoplasmin-like/VP (viral coat and capsid proteins)	F: IF-2B	ECOD (v294.1)
A	Aldedh	e4zemA1	A: a/b three-layered sandwiches	X: HAD domain-like	H: Class I glutamine amidotransferase-like	T: CheY-like	F: Aldedh	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.10470	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Translation initiation factor eif-2b	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01008	Initiation factor 2 subunit family (IF-2B)	Initiation factor 2 subunit family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Translation initiation factor eIF2b-like protein,Translation initiation factor eIF2b-like protein	translation factor activity translation initiation factor activity GTPase regulator activity enzyme regulator activity guanyl-nucleotide exchange factor activity nucleoside-triphosphatase regulator activity molecular function regulator activity	-	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex eukaryotic translation initiation factor 2B complex guanyl-nucleotide exchange factor complex intracellular protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR051855	Eukaryotic initiation factor 2B subunit beta	Family
A, B	IPR042529	Initiation factor 2B-like, C-terminal	Homologous Superfamily
A, B	IPR037171	NagB/RpiA transferase-like	Homologous Superfamily
A, B	IPR000649	Initiation factor 2B-related	Family

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.