4YKB

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	GUN4-like	8097185	4001565	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	GUN4-like	8097186	3001841	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	GUN4-like	8097186	3001841	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	GUN4-like	8097186	3001841	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	GUN4-like	8097186	3001841	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	GUN4-like	8097186	3001841	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	GUN4-like	8097186	3001841	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF05419	e4ykbA1	A: alpha arrays	X: GUN4-like (From Topology)	H: GUN4-like (From Topology)	T: GUN4-like	F: PF05419	ECOD (1.6)
B	PF05419	e4ykbB1	A: alpha arrays	X: GUN4-like (From Topology)	H: GUN4-like (From Topology)	T: GUN4-like	F: PF05419	ECOD (1.6)
C	PF05419	e4ykbC1	A: alpha arrays	X: GUN4-like (From Topology)	H: GUN4-like (From Topology)	T: GUN4-like	F: PF05419	ECOD (1.6)
D	PF05419	e4ykbD1	A: alpha arrays	X: GUN4-like (From Topology)	H: GUN4-like (From Topology)	T: GUN4-like	F: PF05419	ECOD (1.6)
E	PF05419	e4ykbE1	A: alpha arrays	X: GUN4-like (From Topology)	H: GUN4-like (From Topology)	T: GUN4-like	F: PF05419	ECOD (1.6)
F	PF05419	e4ykbF1	A: alpha arrays	X: GUN4-like (From Topology)	H: GUN4-like (From Topology)	T: GUN4-like	F: PF05419	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	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

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	Tetrapyrrole-binding protein	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 cellular process signal transduction chloroplast-nucleus signaling pathway cell communication	membrane-bounded organelle intracellular organelle intracellular anatomical structure plastid organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle chloroplast