Annotations: 7E2S

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	GUN4-like	8034128	3001841	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	ARM repeat-like	8034126	3000116	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)
A	GUN4	e7e2sA1	A: alpha arrays	X: GUN4-like (From Topology)	H: GUN4-like (From Topology)	T: GUN4-like	F: GUN4	ECOD (1.6)
A	GUN4_N	e7e2sA2	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: GUN4_N	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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
A	PF16416	ARM-like repeat domain, GUN4-N terminal (GUN4_N)	ARM-like repeat domain, GUN4-N terminal	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Ycf53-like protein	binding organic cyclic compound binding tetrapyrrole binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR032192	GUN4, N-terminal ARM-like repeat domain	Domain
A	IPR037215	GUN4-like superfamily	Homologous Superfamily
A	IPR016024	Armadillo-type fold	Homologous Superfamily
A	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.