Annotations: 8QZZ

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	eIF-2-alpha, C-terminal domain	8038509	3001618	SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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
A	PF09173	Initiation factor eIF2 gamma, C terminal (eIF2_C)	Initiation factor eIF2 gamma, C terminal	Members of this family, which are found in the initiation factors eIF2 and EF-Tu, adopt a structure consisting of a beta barrel with Greek key topology. They are required for formation of the ternary complex with GTP and initiator tRNA [1].	Domain
A	PF03144	Elongation factor Tu domain 2 (GTP_EFTU_D2)	Elongation factor Tu domain 2	Elongation factor Tu consists of three structural domains, this is the second domain. This domain adopts a beta barrel structure. This the second domain is involved in binding to charged tRNA [1]. This domain is also found in other proteins such as e ...	Elongation factor Tu consists of three structural domains, this is the second domain. This domain adopts a beta barrel structure. This the second domain is involved in binding to charged tRNA [1]. This domain is also found in other proteins such as elongation factor G and translation initiation factor IF-2. This domain is structurally related to Pfam:PF03143, and in fact has weak sequence matches to this domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Eukaryotic translation initiation factor 2 subunit 3	RNA binding binding organic cyclic compound binding tRNA binding nucleic acid binding methionyl-initiator methionine tRNA binding translation regulator activity translation regulator activity, nucleic acid binding translation initiation factor activity translation factor activity, RNA binding cell adhesion molecule binding cadherin binding protein binding guanyl nucleotide binding RNA binding binding organic cyclic compound binding tRNA binding nucleic acid binding methionyl-initiator methionine tRNA binding translation regulator activity translation regulator activity, nucleic acid binding translation initiation factor activity translation factor activity, RNA binding cell adhesion molecule binding cadherin binding protein 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	cellular biosynthetic process cellular metabolic process primary metabolic process translation gene expression macromolecule biosynthetic process biosynthetic process translational initiation metabolic process cellular process protein metabolic process macromolecule metabolic process ribonucleoprotein complex biogenesis protein-RNA complex assembly cellular biosynthetic process cellular metabolic process primary metabolic process translation gene expression macromolecule biosynthetic process biosynthetic process translational initiation metabolic process cellular process protein metabolic process macromolecule metabolic process ribonucleoprotein complex biogenesis protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis formation of translation preinitiation complex protein-containing complex organization cytoplasmic translation cytoplasmic translational initiation	extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol protein-containing complex extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space cellular anatomical entity vesicle extracellular membrane-bounded organelle intracellular anatomical structure cytoplasm cytosol protein-containing complex eukaryotic translation initiation factor 2 complex
B	Eukaryotic translation initiation factor 2 subunit 1	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 RNA binding ribonucleoprotein complex binding protein-containing complex binding ribosome binding	cellular response to stimulus cellular response to metal ion response to manganese-induced endoplasmic reticulum stress response to stimulus cellular response to manganese ion cellular response to chemical stress cellular response to chemical stimulus cellular response to stress response to metal ion response to stress response to chemical cellular process response to manganese ion response to endoplasmic reticulum stress cellular response to stimulus cellular response to metal ion response to manganese-induced endoplasmic reticulum stress response to stimulus cellular response to manganese ion cellular response to chemical stress cellular response to chemical stimulus cellular response to stress response to metal ion response to stress response to chemical cellular process response to manganese ion response to endoplasmic reticulum stress cellular biosynthetic process cellular metabolic process primary metabolic process translation gene expression macromolecule biosynthetic process biosynthetic process translational initiation metabolic process protein metabolic process macromolecule metabolic process regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process post-transcriptional regulation of gene expression negative regulation of translation negative regulation of cellular process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process negative regulation of translational initiation in response to stress regulation of biosynthetic process regulation of biological process regulation of translational initiation regulation of protein metabolic process negative regulation of metabolic process biological regulation negative regulation of translational initiation regulation of cellular metabolic process regulation of macromolecule metabolic process negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression negative regulation of gene expression negative regulation of biosynthetic process regulation of translation negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process regulation of metabolic process cellular response to heat response to heat response to abiotic stimulus response to temperature stimulus regulation of translation in response to stress regulation of translational initiation in response to stress regulation of translation in response to endoplasmic reticulum stress positive regulation of epithelial cell apoptotic process positive regulation of programmed cell death regulation of epithelial cell apoptotic process regulation of type B pancreatic cell apoptotic process regulation of apoptotic process positive regulation of biological process regulation of programmed cell death cell death positive regulation of apoptotic process epithelial cell apoptotic process positive regulation of type B pancreatic cell apoptotic process type B pancreatic cell apoptotic process apoptotic process programmed cell death positive regulation of cellular process response to oxidative stress cellular response to oxidative stress cellular response to topologically incorrect protein signaling PERK-mediated unfolded protein response endoplasmic reticulum unfolded protein response cellular response to unfolded protein response to unfolded protein intracellular signal transduction integrated stress response signaling cell communication response to topologically incorrect protein intracellular signaling cassette ER-nucleus signaling pathway signal transduction response to light stimulus cellular response to radiation response to UV cellular response to environmental stimulus cellular response to light stimulus response to radiation cellular response to abiotic stimulus cellular response to UV response to acid chemical response to kainic acid response to oxygen-containing compound response to nitrogen compound response to amino acid response to organic cyclic compound cellular component biogenesis cellular component organization organelle organization cellular component assembly stress granule assembly organelle assembly non-membrane-bounded organelle assembly cellular component organization or biogenesis response to nutrient levels cellular response to amino acid starvation cellular response to starvation cellular response to nutrient levels response to amino acid starvation response to starvation cellular catabolic process mitophagy catabolic process macroautophagy autophagy autophagy of mitochondrion process utilizing autophagic mechanism HRI-mediated signaling	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle cytoplasmic ribonucleoprotein granule ribonucleoprotein granule intracellular non-membrane-bounded organelle supramolecular complex non-membrane-bounded organelle cytoplasmic stress granule membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle cytoplasmic ribonucleoprotein granule ribonucleoprotein granule intracellular non-membrane-bounded organelle supramolecular complex non-membrane-bounded organelle cytoplasmic stress granule membrane extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle cytosol protein-containing complex eukaryotic translation initiation factor 2 complex ribonucleoprotein complex translation initiation ternary complex glial cell projection cell projection glial limiting end-foot plasma membrane bounded cell projection astrocyte end-foot astrocyte projection synapse cell junction translation preinitiation complex eukaryotic 48S preinitiation complex nucleus
C	Protein phosphatase 1 regulatory subunit 15A	enzyme regulator activity protein phosphatase activator activity enzyme activator activity phosphatase activator activity molecular function activator activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity protein phosphatase binding phosphatase binding protein phosphatase 1 binding protein binding binding enzyme binding enzyme regulator activity protein phosphatase activator activity enzyme activator activity phosphatase activator activity molecular function activator activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity protein phosphatase binding phosphatase binding protein phosphatase 1 binding protein binding binding enzyme binding kinase binding protein kinase binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process apoptotic process cell death programmed cell death regulation of cellular process cellular biosynthetic process positive regulation of protein metabolic process positive regulation of biological process positive regulation of translation cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process apoptotic process cell death programmed cell death regulation of cellular process cellular biosynthetic process positive regulation of protein metabolic process positive regulation of biological process positive regulation of translation positive regulation of cellular metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process positive regulation of translational initiation in response to stress post-transcriptional regulation of gene expression positive regulation of metabolic process positive regulation of biosynthetic process positive regulation of macromolecule metabolic process translational initiation protein metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of biological process regulation of translational initiation cellular metabolic process regulation of protein metabolic process biological regulation regulation of cellular metabolic process primary metabolic process regulation of macromolecule metabolic process gene expression translation macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression regulation of translation regulation of macromolecule biosynthetic process metabolic process positive regulation of translational initiation macromolecule metabolic process regulation of metabolic process positive regulation of cellular biosynthetic process protein localization localization cellular localization protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to endoplasmic reticulum signaling intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress intracellular signal transduction cell communication apoptotic signaling pathway signal transduction intrinsic apoptotic signaling pathway response to endoplasmic reticulum stress negative regulation of signaling negative regulation of intracellular signal transduction regulation of cellular response to stress negative regulation of biological process PERK-mediated unfolded protein response endoplasmic reticulum unfolded protein response regulation of response to endoplasmic reticulum stress regulation of signal transduction integrated stress response signaling negative regulation of cell communication regulation of endoplasmic reticulum unfolded protein response regulation of intracellular signal transduction regulation of response to stress intracellular signaling cassette ER-nucleus signaling pathway negative regulation of cellular process negative regulation of endoplasmic reticulum unfolded protein response negative regulation of response to endoplasmic reticulum stress regulation of signaling cellular response to topologically incorrect protein regulation of PERK-mediated unfolded protein response negative regulation of response to stimulus cellular response to unfolded protein response to unfolded protein negative regulation of signal transduction negative regulation of PERK-mediated unfolded protein response regulation of response to stimulus response to topologically incorrect protein regulation of cell communication cell cycle regulation of cell cycle protein dephosphorylation regulation of cellular component size cellular component organization regulation of translation in response to stress phosphate-containing compound metabolic process cellular component organization or biogenesis regulation of biological quality protein modification process phosphorus metabolic process dephosphorylation regulation of translational initiation by eIF2 alpha dephosphorylation macromolecule modification regulation of translational initiation in response to stress regulation of anatomical structure size	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle membrane phosphatase complex protein-containing complex protein phosphatase type 1 complex catalytic complex protein serine/threonine phosphatase complex membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle membrane phosphatase complex protein-containing complex protein phosphatase type 1 complex catalytic complex protein serine/threonine phosphatase complex cytosol organelle subcompartment endomembrane system endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane endoplasmic reticulum membrane Golgi apparatus mitochondrial membrane organelle outer membrane organelle envelope bounding membrane of organelle mitochondrial envelope mitochondrial outer membrane outer membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000795	Translational (tr)-type GTP-binding domain	Domain
A	IPR009001	Translation elongation factor EF1A/initiation factor IF2gamma, C-terminal	Homologous Superfamily
A	IPR004161	Translation elongation factor EFTu-like, domain 2	Domain
A	IPR050543	Eukaryotic Initiation Factor 2 Gamma Subunit	Family
A	IPR044128	Initiation factor eIF2 gamma, GTP-binding domain	Domain
A	IPR015256	Initiation factor eIF2 gamma, C-terminal	Domain
A	IPR009000	Translation protein, beta-barrel domain superfamily	Homologous Superfamily
A	IPR044127	Initiation factor eIF2 gamma, domain 2	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
B	IPR044126	IF2a, S1-like domain	Domain
B	IPR024054	Translation initiation factor 2, alpha subunit, middle domain superfamily	Homologous Superfamily
B	IPR024055	Translation initiation factor 2, alpha subunit, C-terminal	Homologous Superfamily
B	IPR003029	S1 domain	Domain
B	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
B	IPR011488	Translation initiation factor 2, alpha subunit	Family
C	IPR051254	Protein Phosphatase 1 Regulatory Subunit 15	Family
C	IPR019523	Protein phosphatase 1, regulatory subunit 15A/B, C-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P41091	MEHMO syndrome intellectual disability arthrogryposis Epileptic encephalopathy juvenile dermatomyositis microcephaly osteosarcoma Duchenne muscular dystrophy facioscapulohumeral muscular dystrophy medulloblastoma myopathy ovarian cancer epilepsy obesity disorder
B	Pharos: P05198	osteosarcoma status epilepticus Alzheimer disease Cognition Disorders ovarian cancer lung cancer psoriasis gastric cancer hepatocellular carcinoma malignant pancreatic neoplasm plasma cell myeloma schizophrenia breast cancer exocrine pancreatic carcinoma gastric carcinoma osteosarcoma status epilepticus Alzheimer disease Cognition Disorders ovarian cancer lung cancer psoriasis gastric cancer hepatocellular carcinoma malignant pancreatic neoplasm plasma cell myeloma schizophrenia breast cancer exocrine pancreatic carcinoma gastric carcinoma IgA glomerulonephritis
C	Pharos: O75807	acute myeloid leukemia chronic obstructive pulmonary disease gastric carcinoma lung cancer non-small cell lung carcinoma psoriasis adenoma Crohn disease invasive ductal breast carcinoma lung carcinoma pituitary cancer tuberculosis bipolar disorder diabetes mellitus lung adenocarcinoma acute myeloid leukemia chronic obstructive pulmonary disease gastric carcinoma lung cancer non-small cell lung carcinoma psoriasis adenoma Crohn disease invasive ductal breast carcinoma lung carcinoma pituitary cancer tuberculosis bipolar disorder diabetes mellitus lung adenocarcinoma malignant pancreatic neoplasm plasma cell myeloma

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.