Annotations: 8B3Z

Chain	Domain	Class	Architecture	Topology	Provenance Source (Version)
A	1.20.120.1810	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	CATH (utative)
B	1.20.120.1810	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	CATH (utative)
C	1.20.120.1810	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	CATH (utative)
D	1.20.120.1810	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	CATH (utative)
E	1.20.120.1810	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	CATH (utative)
F	1.20.120.1810	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	CATH (utative)

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	PF04542	Sigma-70 region 2 (Sigma70_r2)	Sigma-70 region 2	Region 2 of sigma-70 is the most conserved region of the entire protein. All members of this class of sigma-factor contain region 2. The high conservation is due to region 2 containing both the -10 promoter recognition helix and the primary core RNA ...	Region 2 of sigma-70 is the most conserved region of the entire protein. All members of this class of sigma-factor contain region 2. The high conservation is due to region 2 containing both the -10 promoter recognition helix and the primary core RNA polymerase binding determinant. The core binding helix, interacts with the clamp domain of the largest polymerase subunit, beta prime [1,2]. The aromatic residues of the recognition helix, found at the C-terminus of this domain are though to mediate strand separation, thereby allowing transcription initiation [1,2].	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	RNA polymerase sigma factor	DNA binding binding nucleic acid binding transcription regulator activity DNA-binding transcription factor activity sigma factor activity	sporulation resulting in formation of a cellular spore developmental process anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development sporulation RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process DNA-templated transcription initiation nucleic acid metabolic process RNA biosynthetic process sporulation resulting in formation of a cellular spore developmental process anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development sporulation RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process DNA-templated transcription initiation nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process metabolic process cellular process macromolecule metabolic process	-

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR007627	RNA polymerase sigma-70 region 2	Domain
A, B, C, D, E A, B, C, D, E, F	IPR000943	RNA polymerase sigma-70	Domain
A, B, C, D, E A, B, C, D, E, F	IPR050813	Bacterial Sigma-70 Factor	Family
A, B, C, D, E A, B, C, D, E, F	IPR001387	Cro/C1-type, helix-turn-helix domain	Domain
A, B, C, D, E A, B, C, D, E, F	IPR013325	RNA polymerase sigma factor, region 2	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR013324	RNA polymerase sigma factor, region 3/4-like	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR014200	RNA polymerase sigma-E type	Family
A, B, C, D, E A, B, C, D, E, F	IPR007630	RNA polymerase sigma-70 region 4	Domain
A, B, C, D, E A, B, C, D, E, F	IPR014284	RNA polymerase sigma-70-like domain	Domain