Annotations: 2GRL

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2grla1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	automated matches	automated matches	(Enterococcus faecalis ) [TaxId: 1351 ],	SCOPe (2.08)
A	d2grla2	All alpha proteins	alpha-alpha superhelix	TPR-like	PrgX C-terminal domain-like	automated matches	(Enterococcus faecalis ) [TaxId: 1351 ],	SCOPe (2.08)
B	d2grlb1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	automated matches	automated matches	(Enterococcus faecalis ) [TaxId: 1351 ],	SCOPe (2.08)
B	d2grlb2	All alpha proteins	alpha-alpha superhelix	TPR-like	PrgX C-terminal domain-like	automated matches	(Enterococcus faecalis ) [TaxId: 1351 ],	SCOPe (2.08)
C	d2grlc1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	automated matches	automated matches	(Enterococcus faecalis ) [TaxId: 1351 ],	SCOPe (2.08)
C	d2grlc2	All alpha proteins	alpha-alpha superhelix	TPR-like	PrgX C-terminal domain-like	automated matches	(Enterococcus faecalis ) [TaxId: 1351 ],	SCOPe (2.08)
D	d2grld1	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	automated matches	automated matches	(Enterococcus faecalis ) [TaxId: 1351 ],	SCOPe (2.08)
D	d2grld2	All alpha proteins	alpha-alpha superhelix	TPR-like	PrgX C-terminal domain-like	automated matches	(Enterococcus faecalis ) [TaxId: 1351 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037421	3000119	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	TPR-like	8037422	3001345	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	TPR-like	8037422	3001345	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037421	3000119	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	TPR-like	8037422	3001345	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037421	3000119	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	TPR-like	8037422	3001345	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8037421	3000119	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	HTH_3_2	e2grlA1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_2	ECOD (1.6)
A	EUF08220	e2grlA2	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: EUF08220	ECOD (1.6)
B	HTH_3_2	e2grlB1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_2	ECOD (1.6)
B	EUF08220	e2grlB2	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: EUF08220	ECOD (1.6)
C	HTH_3_2	e2grlC1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_2	ECOD (1.6)
C	EUF08220	e2grlC2	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: EUF08220	ECOD (1.6)
D	HTH_3_2	e2grlD1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTH_3_2	ECOD (1.6)
D	EUF08220	e2grlD2	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: EUF08220	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
A	1.25.40.400	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat		CATH (4.3.0)
B	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
B	1.25.40.400	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat		CATH (4.3.0)
C	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
C	1.25.40.400	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat		CATH (4.3.0)
D	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
D	1.25.40.400	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF01381	Helix-turn-helix (HTH_3)	Helix-turn-helix	This large family of DNA binding helix-turn helix proteins includes Cro Swiss:P03036 and CI Swiss:P03034. Within the protein Swiss:Q5F9C2, the full protein fold incorporates a helix-turn-helix motif, but the function of this member is unlikely to be ...	This large family of DNA binding helix-turn helix proteins includes Cro Swiss:P03036 and CI Swiss:P03034. Within the protein Swiss:Q5F9C2, the full protein fold incorporates a helix-turn-helix motif, but the function of this member is unlikely to be that of a DNA-binding regulator, the function of most other members, so is not necessarily characteristic of the whole family [1].	Domain
A, B, C, D	PF21259	HTH-type transcriptional regulator Rgg, C-terminal domain (Rgg_C)	HTH-type transcriptional regulator Rgg, C-terminal domain	This domain is found at the C-terminal end of HTH-type transcriptional regulator Rgg from Streptococcus gordonii, and similar proteins predominantly found in Firmicutes. Rgg is a peptide pheromone receptor that directly binds pheromones transported t ...	This domain is found at the C-terminal end of HTH-type transcriptional regulator Rgg from Streptococcus gordonii, and similar proteins predominantly found in Firmicutes. Rgg is a peptide pheromone receptor that directly binds pheromones transported to the cytosol. The large C-terminal repeat domain contains five HTH folds and a capping helix that form a right-handed superhelical structure, resembling a TPR domain superhelix [1-5]. This domain is found associated with the N-terminal Pfam:PF01381.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	PrgX	DNA binding binding organic cyclic compound binding nucleic acid binding	regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process negative regulation of metabolic process primary metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process cellular biosynthetic process RNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process negative regulation of cellular process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process negative regulation of biosynthetic process cellular process	protein-containing complex transcription regulator complex transcription repressor complex
E	peptide	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR001387	Cro/C1-type helix-turn-helix domain	Domain
A, B, C, D	IPR010057	HTH-type transcriptional regulator Rgg, C-terminal domain	Domain
A, B, C, D	IPR011990	Tetratricopeptide-like helical domain superfamily	Homologous Superfamily
A, B, C, D	IPR010982	Lambda repressor-like, DNA-binding domain superfamily	Homologous Superfamily

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.