1KU2
Crystal Structure of Thermus aquaticus RNA Polymerase Sigma Subunit Fragment Containing Regions 1.2 to 3.1
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | d1ku2a1 | All alpha proteins | DNA/RNA-binding 3-helical bundle | Sigma3 and sigma4 domains of RNA polymerase sigma factors | Sigma3 domain | Sigma factor SigA | (Thermus aquaticus ) [TaxId: 271 ], | SCOPe (2.08) |
A | d1ku2a2 | All alpha proteins | Sigma2 domain of RNA polymerase sigma factors | Sigma2 domain of RNA polymerase sigma factors | Sigma2 domain of RNA polymerase sigma factors | Sigma factor SigA | (Thermus aquaticus ) [TaxId: 271 ], | SCOPe (2.08) |
B | d1ku2b1 | All alpha proteins | DNA/RNA-binding 3-helical bundle | Sigma3 and sigma4 domains of RNA polymerase sigma factors | Sigma3 domain | Sigma factor SigA | (Thermus aquaticus ) [TaxId: 271 ], | SCOPe (2.08) |
B | d1ku2b2 | All alpha proteins | Sigma2 domain of RNA polymerase sigma factors | Sigma2 domain of RNA polymerase sigma factors | Sigma2 domain of RNA polymerase sigma factors | Sigma factor SigA | (Thermus aquaticus ) [TaxId: 271 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
---|---|---|---|---|---|
A | SCOP2 Family | Sigma2 domain of RNA polymerase sigma factors | 8032033 | 4003741 | SCOP2 (2022-06-29) |
A | SCOP2 Family | Sigma3 domain | 8032032 | 4003497 | SCOP2 (2022-06-29) |
A | SCOP2 Superfamily | Sigma2 domain of RNA polymerase sigma factors | 8044411 | 3001393 | SCOP2 (2022-06-29) |
A | SCOP2 Superfamily | Sigma factor domain-like | 8044410 | 3000953 | SCOP2 (2022-06-29) |
B | SCOP2B Superfamily | Sigma factor domain-like | 8044410 | 3000953 | SCOP2B (2022-06-29) |
B | SCOP2B Superfamily | Sigma2 domain of RNA polymerase sigma factors | 8044411 | 3001393 | 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 | PF04539 | e1ku2A1 | A: alpha arrays | X: HTH | H: HTH | T: tri-helical | F: PF04539 | ECOD (1.6) |
A | PF00140,PF04542 | e1ku2A2 | 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: PF00140,PF04542 | ECOD (1.6) |
B | PF04539 | e1ku2B1 | A: alpha arrays | X: HTH | H: HTH | T: tri-helical | F: PF04539 | ECOD (1.6) |
B | PF00140,PF04542 | e1ku2B2 | 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: PF00140,PF04542 | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
A | 1.20.120.1810 | Mainly Alpha | Up-down Bundle | Four Helix Bundle (Hemerythrin (Met), subunit 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 | 1.20.120.1810 | Mainly Alpha | Up-down Bundle | Four Helix Bundle (Hemerythrin (Met), subunit A) | CATH (4.3.0) | |
B | 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 |
---|---|---|---|---|---|
PF04539 | Sigma-70 region 3 (Sigma70_r3) | Sigma-70 region 3 | - | Family | |
PF00140 | Sigma-70 factor, region 1.2 (Sigma70_r1_2) | Sigma-70 factor, region 1.2 | - | Family | |
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 ... | Domain |
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 | |
IPR000943 | RNA polymerase sigma-70 | 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 | |
IPR012760 | RNA polymerase sigma factor RpoD, C-terminal | Domain | |
IPR014284 | RNA polymerase sigma-70 like domain | Domain | |
IPR009042 | RNA polymerase sigma-70 region 1.2 | Domain | |
IPR007630 | RNA polymerase sigma-70 region 4 | Domain | |
IPR007624 | RNA polymerase sigma-70 region 3 | Domain | |
IPR028630 | RNA polymerase sigma factor RpoD | Family |