Annotations: 3IZY

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth P]	F_UNCLASSIFIED	e3izyP7	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: F_UNCLASSIFIED	ECOD (1.6)
B [auth P]	PF22042	e3izyP2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: PF22042	ECOD (1.6)
B [auth P]	PF00009	e3izyP6	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00009	ECOD (1.6)
B [auth P]	PF11987	e3izyP4	A: a/b three-layered sandwiches	X: Initiation factor IF2/eIF5b, domain 3 (From Topology)	H: Initiation factor IF2/eIF5b, domain 3 (From Topology)	T: Initiation factor IF2/eIF5b, domain 3	F: PF11987	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth P]	PF00009	Elongation factor Tu GTP binding domain (GTP_EFTU)	Elongation factor Tu GTP binding domain	This domain contains a P-loop motif, also found in several other families such as Pfam:PF00071, Pfam:PF00025 and Pfam:PF00063. Elongation factor Tu consists of three structural domains, this plus two C-terminal beta barrel domains.	Domain
B [auth P]	PF11987	Translation-initiation factor 2 (IF-2)	Translation-initiation factor 2	IF-2 is a translation initiator in each of the three main phylogenetic domains (Eukaryotes [1], Bacteria [2] and Archaea [3]). IF2 interacts with formylmethionine-tRNA, GTP, IF1, IF3 and both ribosomal subunits [2]. Through these interactions, IF2 pr ...	IF-2 is a translation initiator in each of the three main phylogenetic domains (Eukaryotes [1], Bacteria [2] and Archaea [3]). IF2 interacts with formylmethionine-tRNA, GTP, IF1, IF3 and both ribosomal subunits [2]. Through these interactions, IF2 promotes the binding of the initiator tRNA to the A site in the smaller ribosomal subunit and catalyses the hydrolysis of GTP following initiation-complex formation [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth N]	tRNA-Phe	-	-	-
B [auth P]	Translation initiation factor IF-2, mitochondrial	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 guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate 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 guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule 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 mitochondrial translation cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process mitochondrial translational initiation mitochondrial gene expression gene expression translation macromolecule biosynthetic process organic substance metabolic process biosynthetic process organic substance biosynthetic process organonitrogen compound metabolic process mitochondrial translation cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process mitochondrial translational initiation mitochondrial gene expression gene expression translation macromolecule biosynthetic process organic substance metabolic process biosynthetic process organic substance biosynthetic process metabolic process cellular process translational initiation macromolecule metabolic process protein metabolic process cellular component organization cellular component disassembly organelle organization organelle disassembly ribosome disassembly cellular component organization or biogenesis	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen mitochondrial matrix

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth P]	IPR000178	Translation initiation factor IF-2, bacterial-like	Family
B [auth P]	IPR000795	Translational (tr)-type GTP-binding domain	Domain
B [auth P]	IPR044145	Translation initiation factor IF-2, domain II	Domain
B [auth P]	IPR009000	Translation protein, beta-barrel domain superfamily	Homologous Superfamily
B [auth P]	IPR005225	Small GTP-binding protein domain	Domain
B [auth P]	IPR015760	Translation initiation factor IF- 2	Family
B [auth P]	IPR036925	Translation initiation factor IF-2, domain 3 superfamily	Homologous Superfamily
B [auth P]	IPR023115	Translation initiation factor IF- 2, domain 3	Domain
B [auth P]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

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.