6BQI | pdb_00006bqi

Structure of two-domain translational regulator Yih1 reveals a possible mechanism of action

External Resource: Annotation

Domain Annotation: ECOD Classification
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	UPF0029	e6bqiA1	A: a+b two layers	X: Ribosomal protein S5 domain 2-like (From Topology)	H: Ribosomal protein S5 domain 2-like (From Topology)	T: Ribosomal protein S5 domain 2-like	F: UPF0029	ECOD (1.6)
A	RWD	e6bqiA2	A: a+b two layers	X: UBC-like	H: UBC-like (From Topology)	T: UBC-like	F: RWD	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01205	Impact N-terminal domain (Impact_N)	Impact N-terminal domain	This entry represents the N-terminal domain of the Impact proteins. The Impact protein is a translational regulator that ensures constant high levels of translation under amino acid starvation. It acts by interacting with Gcn1/Gcn1L1, thereby prevent ...	This entry represents the N-terminal domain of the Impact proteins. The Impact protein is a translational regulator that ensures constant high levels of translation under amino acid starvation. It acts by interacting with Gcn1/Gcn1L1, thereby preventing activation of Gcn2 protein kinases (EIF2AK1 to 4) and subsequent down-regulation of protein synthesis [2,3]. It is evolutionary conserved from eukaryotes to archaea [1].	Domain
A	PF05773	RWD domain (RWD)	RWD domain	This domain was identified in WD40 repeat proteins and Ring finger domain proteins [1]. The function of this domain is unknown. GCN2 is the alpha-subunit of the only translation initiation factor (eIF2 alpha) kinase that appears in all eukaryotes. It ...	This domain was identified in WD40 repeat proteins and Ring finger domain proteins [1]. The function of this domain is unknown. GCN2 is the alpha-subunit of the only translation initiation factor (eIF2 alpha) kinase that appears in all eukaryotes. Its function requires an interaction with GCN1 via the domain at its N-terminus, which is termed the RWD domain [1] after three major RWD-containing proteins: RING finger-containing proteins, WD-repeat-containing proteins, and yeast DEAD (DEXD)-like helicases. The structure forms an alpha + beta sandwich fold consisting of two layers: a four-stranded antiparallel beta-sheet, and three side-by-side alpha-helices [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Protein IMPACT homolog	enzyme regulator activity protein kinase inhibitor activity molecular function inhibitor activity molecular function regulator activity enzyme inhibitor activity protein kinase regulator activity kinase inhibitor activity kinase regulator activity ribonucleoprotein complex binding protein-containing complex binding binding ribosome binding cytoskeletal protein binding actin monomer binding enzyme regulator activity protein kinase inhibitor activity molecular function inhibitor activity molecular function regulator activity enzyme inhibitor activity protein kinase regulator activity kinase inhibitor activity kinase regulator activity ribonucleoprotein complex binding protein-containing complex binding binding ribosome binding cytoskeletal protein binding actin monomer binding actin binding protein binding	cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation integrated stress response signaling intracellular signal transduction cell communication cellular response to stress response to stress intracellular signaling cassette cellular process signal transduction cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation integrated stress response signaling intracellular signal transduction cell communication cellular response to stress response to stress intracellular signaling cassette cellular process signal transduction GCN2-mediated signaling protein biosynthetic process regulation of primary metabolic process post-transcriptional regulation of gene expression translational initiation protein metabolic process regulation of biosynthetic process regulation of translational initiation regulation of protein metabolic process primary metabolic process regulation of macromolecule metabolic process gene expression translation macromolecule biosynthetic process regulation of gene expression biosynthetic process regulation of translation regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process regulation of protein modification process regulation of protein phosphorylation negative regulation of biological process negative regulation of phosphate metabolic process phosphate-containing compound metabolic process negative regulation of protein modification process negative regulation of cellular process protein modification process phosphorus metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process protein phosphorylation phosphorylation negative regulation of metabolic process negative regulation of protein phosphorylation macromolecule modification negative regulation of phosphorus metabolic process regulation of phosphorylation regulation of phosphorus metabolic process negative regulation of phosphorylation 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 regulation of cellular component organization negative regulation of cellular component organization protein-containing complex organization regulation of cellular component biogenesis negative regulation of protein-containing complex assembly cellular component organization cellular component biogenesis regulation of protein-containing complex assembly cellular component assembly protein-containing complex assembly cellular component organization or biogenesis regulation of catalytic activity negative regulation of catalytic activity regulation of transferase activity negative regulation of kinase activity negative regulation of molecular function regulation of molecular function regulation of kinase activity	cellular anatomical structure intracellular anatomical structure cytoplasm membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036956	Impact, N-terminal domain superfamily	Homologous Superfamily
A	IPR016135	Ubiquitin-conjugating enzyme/RWD-like	Homologous Superfamily
A	IPR023582	Impact family	Family
A	IPR006575	RWD domain	Domain
A	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
A	IPR001498	Impact, N-terminal	Domain
A	IPR020569	Uncharacterised protein family UPF0029, Impact, conserved site	Conserved Site

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.