4YNL

Crystal structure of the hood domain of Anabaena HetR in complex with the hexapeptide ERGSGR derived from PatS

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth B]	SCOP2B Superfamily	HetR C-terminal hood domain	8055700	3002297	SCOP2B (2022-06-29)
B [auth A]	SCOP2B Superfamily	HetR C-terminal hood domain	8055700	3002297	SCOP2B (2022-06-29)
E [auth N]	SCOP2B Superfamily	HetR C-terminal hood domain	8055700	3002297	SCOP2B (2022-06-29)
F [auth M]	SCOP2B Superfamily	HetR C-terminal hood domain	8055700	3002297	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 [auth B]	hetR	e4ynlB1	A: a+b duplicates or obligate multimers	X: Dimerization domain of heterocyst differentiation protein HetR (From Topology)	H: Dimerization domain of heterocyst differentiation protein HetR (From Topology)	T: Dimerization domain of heterocyst differentiation protein HetR	F: hetR	ECOD (1.6)
B [auth A]	hetR	e4ynlA1	A: a+b duplicates or obligate multimers	X: Dimerization domain of heterocyst differentiation protein HetR (From Topology)	H: Dimerization domain of heterocyst differentiation protein HetR (From Topology)	T: Dimerization domain of heterocyst differentiation protein HetR	F: hetR	ECOD (1.6)
E [auth N]	hetR	e4ynlN1	A: a+b duplicates or obligate multimers	X: Dimerization domain of heterocyst differentiation protein HetR (From Topology)	H: Dimerization domain of heterocyst differentiation protein HetR (From Topology)	T: Dimerization domain of heterocyst differentiation protein HetR	F: hetR	ECOD (1.6)
F [auth M]	hetR	e4ynlM1	A: a+b duplicates or obligate multimers	X: Dimerization domain of heterocyst differentiation protein HetR (From Topology)	H: Dimerization domain of heterocyst differentiation protein HetR (From Topology)	T: Dimerization domain of heterocyst differentiation protein HetR	F: hetR	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B], B [auth A], E [auth N], F [auth M]	PF18460	Heterocyst differentiation regulator C-terminal Hood domain (HetR_C)	Heterocyst differentiation regulator C-terminal Hood domain	This is the C-terminal hood domain found in Heterocyst differentiation control protein (HetR). HetR-C binds to PatS peptide. Two PatS6 peptides bind to the lateral clefts of HetR-Hood domain, and trigger significant conformational changes of the flap ...	This is the C-terminal hood domain found in Heterocyst differentiation control protein (HetR). HetR-C binds to PatS peptide. Two PatS6 peptides bind to the lateral clefts of HetR-Hood domain, and trigger significant conformational changes of the flap domain, resulting in dissociation of the auxiliary alpha-helix and eventually release of HetR from the DNA major grove and termination of transcription [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth A], E [auth N], F [auth M]	Heterocyst differentiation control protein	DNA binding binding organic cyclic compound binding nucleic acid binding peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity identical protein binding protein binding	developmental process heterocyst development cellular developmental process cellular process organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	-
C [auth D], D [auth C], G [auth P], H [auth R]	Heterocyst inhibition-signaling peptide	-	developmental process heterocyst development cellular developmental process cellular process	periplasmic space cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth A], E [auth N], F [auth M]	IPR041935	HetR, flap domain	Homologous Superfamily
A [auth B], B [auth A], E [auth N], F [auth M]	IPR041936	HetR, N-terminal DNA-binding domain	Homologous Superfamily
A [auth B], B [auth A], E [auth N], F [auth M]	IPR005319	Peptidase S48, DNA-binding transcriptional activator HetR	Family
A [auth B], B [auth A], E [auth N], F [auth M]	IPR040949	HetR, C-terminal Hood domain	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.