Annotations: 2H27

Crystal Structure of Escherichia coli SigmaE Region 4 Bound to its-35 Element DNA

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
F [auth D]	d2h27d1	All alpha proteins	DNA/RNA-binding 3-helical bundle	Sigma3 and sigma4 domains of RNA polymerase sigma factors	Sigma4 domain	SigmaE factor (RpoE)	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)
E [auth A]	d2h27a1	All alpha proteins	DNA/RNA-binding 3-helical bundle	Sigma3 and sigma4 domains of RNA polymerase sigma factors	Sigma4 domain	SigmaE factor (RpoE)	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)
E [auth A]	d2h27a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
F [auth D]	SCOP2B Superfamily	Sigma factor domain-like	8034262	3000953	SCOP2B (2022-06-29)
E [auth A]	SCOP2B Superfamily	Sigma factor domain-like	8034262	3000953	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)
F [auth D]	Homeodomain	e2h27D1	A: beta barrels	X: HTH	H: HTH	T: winged helix domain	F: Homeodomain	ECOD (v294.2)
E [auth A]	Homeodomain	e2h27A1	A: beta barrels	X: HTH	H: HTH	T: winged helix domain	F: Homeodomain	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F [auth D]	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)
E [auth A]	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E [auth A], F [auth D]	PF08281	Sigma-70, region 4 (Sigma70_r4_2)	Sigma-70, region 4	Region 4 of sigma-70 like sigma-factors are involved in binding to the -35 promoter element via a helix-turn-helix motif [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth A], F [auth D]	RNA polymerase Sigma E factor	DNA binding binding nucleic acid binding transcription regulator activity DNA-binding transcription factor activity sigma factor activity	regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process regulation of DNA-templated transcription initiation DNA-templated transcription initiation cellular response to stimulus cellular response to stress response to stimulus response to stress cellular response to cell envelope stress response to osmotic stress response to abiotic stimulus cell aggregation biofilm formation aggregation of unicellular organisms submerged biofilm formation response to temperature stimulus	protein-containing complex sigma factor antagonist complex transcription regulator complex intracellular anatomical structure catalytic complex transferase complex transferase complex, transferring phosphorus-containing groups cellular anatomical structure cytosolic DNA-directed RNA polymerase complex RNA polymerase complex DNA-directed RNA polymerase complex cytoplasm cytosol intracellular protein-containing complex protein-containing complex sigma factor antagonist complex transcription regulator complex intracellular anatomical structure catalytic complex transferase complex transferase complex, transferring phosphorus-containing groups cellular anatomical structure cytosolic DNA-directed RNA polymerase complex RNA polymerase complex DNA-directed RNA polymerase complex cytoplasm cytosol intracellular protein-containing complex cell periphery plasma membrane membrane
B [auth C], D [auth F]	5'-D(CCPGPAPAPGPTPTPCPCPGPG)-3'	-	-	-
A [auth B], C [auth E]	5'-D(CPCPCPGPGPAPAPCPTPTPCPG)-3'	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth A], F [auth D]	IPR007627	RNA polymerase sigma-70 region 2	Domain
E [auth A], F [auth D]	IPR039425	RNA polymerase sigma-70-like	Family
E [auth A], F [auth D]	IPR013325	RNA polymerase sigma factor, region 2	Homologous Superfamily
E [auth A], F [auth D]	IPR013324	RNA polymerase sigma factor, region 3/4-like	Homologous Superfamily
E [auth A], F [auth D]	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
E [auth A], F [auth D]	IPR000838	RNA polymerase sigma factor 70, ECF, conserved site	Conserved Site
E [auth A], F [auth D]	IPR014284	RNA polymerase sigma-70-like domain	Domain
E [auth A], F [auth D]	IPR013249	RNA polymerase sigma factor 70, region 4 type 2	Domain
E [auth A], F [auth D]	IPR014286	RNA polymerase sigma-70 RpoE type	Family

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.