4NQW
Structure of Mycobacterium tuberculosis extracytoplasmic function sigma factor SigK in complex with the cytosolic domain of its cognate anti-sigma factor RskA
Domain Annotation: ECOD Classification ECOD Database Homepage
Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | PF04545 | e4nqwA1 | A: alpha arrays | X: HTH | H: HTH | T: tri-helical | F: PF04545 | ECOD (1.6) |
A | PF04542 | e4nqwA2 | A: alpha complex topology | X: Sigma2 domain-like | H: Sigma2 domain of RNA polymerase sigma factors (From Topology) | T: Sigma2 domain of RNA polymerase sigma factors | F: PF04542 | ECOD (1.6) |
B | PF22618 | e4nqwB1 | A: alpha arrays | X: N-terminal, cytoplasmic domain of anti-sigma factors (From Topology) | H: N-terminal, cytoplasmic domain of anti-sigma factors (From Topology) | T: N-terminal, cytoplasmic domain of anti-sigma factors | F: PF22618 | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
A | 1.10.1740.10 | Mainly Alpha | Orthogonal Bundle | Rna Polymerase Sigma Factor | Chain: A | CATH (4.3.0) |
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) |
B | 1.10.10.1320 | Mainly Alpha | Orthogonal Bundle | Arc Repressor Mutant, subunit A | Anti-sigma factor, zinc-finger domain | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF04545 | Sigma-70, region 4 (Sigma70_r4) | 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]. Due to the way Pfam works, the threshold has been set artificially high to prevent overlaps with other helix-turn-helix fami ... | Domain | |
PF10099 | Anti-sigma-K factor rskA (RskA) | Anti-sigma-K factor rskA | - | Family |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
IPR007627 | RNA polymerase sigma-70 region 2 | Domain | |
IPR013325 | RNA polymerase sigma factor, region 2 | Homologous Superfamily | |
IPR013324 | RNA polymerase sigma factor, region 3/4-like | Homologous Superfamily | |
IPR036388 | Winged helix-like DNA-binding domain superfamily | Homologous Superfamily | |
IPR014284 | RNA polymerase sigma-70 like domain | Domain | |
IPR039425 | RNA polymerase sigma-70 like | Family | |
IPR007630 | RNA polymerase sigma-70 region 4 | Domain | |
IPR041916 | Anti-sigma factor, zinc-finger domain superfamily | Homologous Superfamily | |
IPR018764 | Anti-sigma K factor RskA | Family |