Annotations: 7E2R

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	GUN4-like	8104360	4001565	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	GUN4-like	8104361	3001841	SCOP2 (2022-06-29)
A	SCOP2B Superfamily	GUN4-like	8104361	3001841	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	GUN4	e7e2rB1	A: alpha arrays	X: GUN4-like (From Topology)	H: GUN4-like (From Topology)	T: GUN4-like	F: GUN4	ECOD (1.6)
A	GUN4	e7e2rA1	A: alpha arrays	X: GUN4-like (From Topology)	H: GUN4-like (From Topology)	T: GUN4-like	F: GUN4	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF05419	GUN4-like (GUN4)	GUN4-like	In Arabidopsis, GUN4 is required for the functioning of the plastid mediated repression of nuclear transcription that is involved in controlling the levels of magnesium- protoporphyrin IX. GUN4 binds the product and substrate of Mg-chelatase, an enz ...	In Arabidopsis, GUN4 is required for the functioning of the plastid mediated repression of nuclear transcription that is involved in controlling the levels of magnesium- protoporphyrin IX. GUN4 binds the product and substrate of Mg-chelatase, an enzyme that produces Mg-Proto, and activates Mg-chelatase. GUN4 is thought to participates in plastid-to-nucleus signaling by regulating magnesium-protoporphyrin IX synthesis or trafficking.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Tetrapyrrole-binding protein, chloroplastic	binding organic cyclic compound binding tetrapyrrole binding protein binding enzyme binding	cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation chloroplast-nucleus signaling pathway intracellular signal transduction cell communication cellular process signal transduction positive regulation of molecular function regulation of molecular function regulation of catalytic activity cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation chloroplast-nucleus signaling pathway intracellular signal transduction cell communication cellular process signal transduction positive regulation of molecular function regulation of molecular function regulation of catalytic activity positive regulation of catalytic activity pigment metabolic process porphyrin-containing compound biosynthetic process tetrapyrrole biosynthetic process tetrapyrrole metabolic process biosynthetic process chlorophyll metabolic process pigment biosynthetic process metabolic process porphyrin-containing compound metabolic process chlorophyll biosynthetic process	membrane-bounded organelle intracellular organelle intracellular anatomical structure plastid organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle chloroplast plastid membrane membrane chloroplast envelope organelle envelope chloroplast membrane membrane-bounded organelle intracellular organelle intracellular anatomical structure plastid organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle chloroplast plastid membrane membrane chloroplast envelope organelle envelope chloroplast membrane organelle membrane plastid envelope

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR037215	GUN4-like superfamily	Homologous Superfamily
A, B	IPR008629	GUN4-like	Domain

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.