1ND9

Solution Structure of the N-terminal Subdomain of Translation Initiation Factor IF2

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
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)
A	d1nd9a_	All alpha proteins	Putative DNA-binding domain	Putative DNA-binding domain	N-terminal subdomain of bacterial translation initiation factor IF2	N-terminal subdomain of bacterial translation initiation factor IF2	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	N-terminal subdomain of bacterial translation initiation factor IF2	8020864	4003693	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Putative DNA-binding domain	8033244	3000158	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)
A	IF2_N	e1nd9A1	A: alpha arrays	X: HTH	H: HTH	T: Putative DNA-binding domain	F: IF2_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.56.50	Alpha Beta	2-Layer Sandwich	Phenylalanyl-tRNA Synthetase	Chain B, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF04760	Translation initiation factor IF-2, N-terminal region (IF2_N)	Translation initiation factor IF-2, N-terminal region	This conserved feature at the N-terminus of bacterial translation initiation factor IF2 has recently had its structure solved. It shows structural similarity to the tRNA anticodon Stem Contact Fold domains of the methionyl-tRNA and glutaminyl-tRNA s ...	This conserved feature at the N-terminus of bacterial translation initiation factor IF2 has recently had its structure solved. It shows structural similarity to the tRNA anticodon Stem Contact Fold domains of the methionyl-tRNA and glutaminyl-tRNA synthetases, and a similar fold is also found in the B5 domain of the phenylalanine-tRNA synthetase.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Translation initiation factor IF-2	translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding nucleic acid binding translation initiation factor activity translation factor activity, RNA binding guanosine tetraphosphate binding guanyl nucleotide binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding nucleic acid binding translation initiation factor activity translation factor activity, RNA binding guanosine tetraphosphate binding guanyl nucleotide binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding GTP binding purine ribonucleoside triphosphate binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ribonucleoprotein complex binding protein-containing complex binding ribosomal small subunit binding ribosome binding	organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process translation gene expression macromolecule biosynthetic process organic substance metabolic process biosynthetic process organic substance biosynthetic process translational initiation metabolic process cellular process organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process translation gene expression macromolecule biosynthetic process organic substance metabolic process biosynthetic process organic substance biosynthetic process translational initiation metabolic process cellular process protein metabolic process macromolecule metabolic process response to stimulus response to stress response to abiotic stimulus response to cold response to temperature stimulus chaperone-mediated protein folding protein maturation protein folding	membrane cellular anatomical entity intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR009061	Putative DNA-binding domain superfamily	Homologous Superfamily
A	IPR000178	Translation initiation factor IF-2, bacterial-like	Family
A	IPR000795	Translational (tr)-type GTP-binding domain	Domain
A	IPR013575	Initiation factor 2 associated domain, bacterial	Domain
A	IPR004161	Translation elongation factor EFTu-like, domain 2	Domain
A	IPR006847	Translation initiation factor IF-2, N-terminal	Domain
A	IPR044145	Translation initiation factor IF-2, domain II	Domain
A	IPR009000	Translation protein, beta-barrel domain superfamily	Homologous Superfamily
A	IPR005225	Small GTP-binding protein domain	Domain
A	IPR015760	Translation initiation factor IF- 2	Family
A	IPR036925	Translation initiation factor IF-2, domain 3 superfamily	Homologous Superfamily
A	IPR023115	Translation initiation factor IF- 2, domain 3	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	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.