Interferon regulatory factor 3
Homo sapiens
State in the Current Structure
| Assembly | Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Associated Components | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|
| 1 | Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count | Chain A; UniProt 173–427 Chain B; UniProt 173–427 | Not recorded | PO4 PHOSPHATE ION × 8 | X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions | Resolution 2.10 Å R-free 0.214 |
Other States of the Same Protein in the Database
Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.
| Other PDB | Difference from Current Entry 1QWT | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 1J2F X-ray crystal structure of IRF-3 and its functional implications Deposited 2003-01-04 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
175–427(253 aa)
Fragment:residues 170-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 4.2;277 K;magnesium formate, pH 4.2, VAPOR DIFFUSION, SITTING DROP, temperature 277K
|
Resolution 2.30 Å R-free 0.242 |
| 1J2F X-ray crystal structure of IRF-3 and its functional implications Deposited 2003-01-04 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain B
175–427(253 aa)
Fragment:residues 170-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 4.2;277 K;magnesium formate, pH 4.2, VAPOR DIFFUSION, SITTING DROP, temperature 277K
|
Resolution 2.30 Å R-free 0.242 |
| 1T2K Structure Of The DNA Binding Domains Of IRF3, ATF-2 and Jun Bound To DNA Deposited 2004-04-21 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein–DNA Heteromer;Protein × 4 PDB declaration: hexameric |
Chain A
1–112(112 aa)
Fragment:N-terminal DNA binding domain
Chain B
1–112(112 aa)
Fragment:N-terminal DNA binding domain
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 6.5;295 K;100 mM NaCacodylate, pH 6.5, 12.5% (w/v) PEG 6000, 400 mM NH4OAc, VAPOR DIFFUSION, HANGING DROP, temperature 295K
|
Resolution 3.00 Å R-free 0.296 |
| 1ZOQ IRF3-CBP complex Deposited 2005-05-13 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
196–386(191 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7;298 K;0.2 M ammonium acetate, 0.15 M Mg acetate, 5% (v/v) PEG 4000, 50 mM Na HEPES, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 2.37 Å R-free 0.226 |
| 1ZOQ IRF3-CBP complex Deposited 2005-05-13 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain B
196–386(191 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7;298 K;0.2 M ammonium acetate, 0.15 M Mg acetate, 5% (v/v) PEG 4000, 50 mM Na HEPES, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 2.37 Å R-free 0.226 |
| 2O61 Crystal Structure of NFkB, IRF7, IRF3 bound to the interferon-b enhancer Deposited 2006-12-06 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Insufficient information Heteromer;Protein × 2 PDB declaration: tetrameric |
Chain A
9–111(103 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7;294 K;100 mM HEPES, pH 7.0, 15% (w/v) PEG 4000, VAPOR DIFFUSION, HANGING DROP, temperature 294K
|
Resolution 2.80 Å R-free 0.278 |
| 2O6G Crystal structure of IRF-3 bound to the interferon-b enhancer Deposited 2006-12-07 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein–DNA Homooligomer;Protein × 4 PDB declaration: hexameric |
Chain E
1–123(123 aa)
Fragment:DNA binding domain, residues 3-112
Chain F
1–123(123 aa)
Fragment:DNA binding domain, residues 3-112
Chain G
1–123(123 aa)
Fragment:DNA binding domain, residues 3-112
Chain H
1–123(123 aa)
Fragment:DNA binding domain, residues 3-112
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 8;294 K;100 mM Tris, 20% (w/v) PEG 6000, 500 mM NH4OAc, 100 mM NaCl, 5 mM MgCl2, 5% glycerol, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 294K
|
Resolution 3.10 Å R-free 0.265 |
| 2PI0 Crystal Structure of IRF-3 bound to the PRDIII-I regulatory element of the human interferon-B enhancer Deposited 2007-04-12 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein–DNA Homooligomer;Protein × 4 PDB declaration: hexameric |
Chain A
1–113(113 aa)
Fragment:IRF-3 DNA Binding Domain
Chain B
1–113(113 aa)
Fragment:IRF-3 DNA Binding Domain
Chain C
1–113(113 aa)
Fragment:IRF-3 DNA Binding Domain
Chain D
1–113(113 aa)
Fragment:IRF-3 DNA Binding Domain
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7;293 K;12%PEG 400,200mM NaCl, pH 7., VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 2.31 Å R-free 0.264 |
| 3A77 The crystal structure of phosphorylated IRF-3 Deposited 2009-09-17 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain A
189–427(239 aa)
Fragment:UNP residues 189-427
|
Non-standard monomer:Yes (specific site not provided by mmCIF) | ACY ACETIC ACID × 1 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 5;277 K;10% MPD, 50mM sodium acetate pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 277K
|
Resolution 1.80 Å R-free 0.221 |
| 3A77 The crystal structure of phosphorylated IRF-3 Deposited 2009-09-17 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain B
189–427(239 aa)
Fragment:UNP residues 189-427
|
Non-standard monomer:Yes (specific site not provided by mmCIF) | MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 5;277 K;10% MPD, 50mM sodium acetate pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 277K
|
Resolution 1.80 Å R-free 0.221 |
| 3A77 The crystal structure of phosphorylated IRF-3 Deposited 2009-09-17 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 3 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain C
189–427(239 aa)
Fragment:UNP residues 189-427
|
Non-standard monomer:Yes (specific site not provided by mmCIF) | ACY ACETIC ACID × 1 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 5;277 K;10% MPD, 50mM sodium acetate pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 277K
|
Resolution 1.80 Å R-free 0.221 |
| 3A77 The crystal structure of phosphorylated IRF-3 Deposited 2009-09-17 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 4 Protein monomer Monomer;Protein × 1 PDB declaration: monomeric |
Chain D
189–427(239 aa)
Fragment:UNP residues 189-427
|
Non-standard monomer:Yes (specific site not provided by mmCIF) | MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 5;277 K;10% MPD, 50mM sodium acetate pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 277K
|
Resolution 1.80 Å R-free 0.221 |
| 5JEJ Phosphorylated STING in complex with IRF-3 CTD Deposited 2016-04-18 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 5 PDB declaration: pentameric |
Chain A
189–427(239 aa)
Fragment:UNP residues 189-427
Chain B
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M Bis-Tris, pH 5.5, 200 mM MgCl2, 20% PEG 3350
|
Resolution 2.00 Å R-free 0.237 |
| 5JEK Phosphorylated MAVS in complex with IRF-3 Deposited 2016-04-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M Bis-Tris pH 5.5, 80 mM MgCl2, 20% PEG 3350
|
Resolution 2.40 Å R-free 0.251 |
| 5JEK Phosphorylated MAVS in complex with IRF-3 Deposited 2016-04-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain B
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M Bis-Tris pH 5.5, 80 mM MgCl2, 20% PEG 3350
|
Resolution 2.40 Å R-free 0.251 |
| 5JEL Phosphorylated TRIF in complex with IRF-3 Deposited 2016-04-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1M NaAc pH 4.6, 2.0M NaCl
|
Resolution 1.60 Å R-free 0.187 |
| 5JEL Phosphorylated TRIF in complex with IRF-3 Deposited 2016-04-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1M NaAc pH 4.6, 2.0M NaCl
|
Resolution 1.60 Å R-free 0.187 |
| 5JEM Complex of IRF-3 with CBP Deposited 2016-04-18 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
189–398(210 aa)
Fragment:UNP residues 189-398
Chain B
189–398(210 aa)
Fragment:UNP residues 189-398
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M HEPES pH 7.5, 25% PEG 3350
|
Resolution 2.50 Å R-free 0.242 |
| 5JEM Complex of IRF-3 with CBP Deposited 2016-04-18 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain E
189–398(210 aa)
Fragment:UNP residues 189-398
Chain G
189–398(210 aa)
Fragment:UNP residues 189-398
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M HEPES pH 7.5, 25% PEG 3350
|
Resolution 2.50 Å R-free 0.242 |
| 5JEO Phosphorylated Rotavirus NSP1 in complex with IRF-3 Deposited 2016-04-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | PO4 PHOSPHATE ION × 3 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M HEPES sodium pH7.5, 0.8 M NaH2PO4, 0.8 M KH2PO4
|
Resolution 1.72 Å R-free 0.183 |
| 5JEO Phosphorylated Rotavirus NSP1 in complex with IRF-3 Deposited 2016-04-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | PO4 PHOSPHATE ION × 6 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M HEPES sodium pH7.5, 0.8 M NaH2PO4, 0.8 M KH2PO4
|
Resolution 1.72 Å R-free 0.183 |
| 5JER Structure of Rotavirus NSP1 bound to IRF-3 Deposited 2016-04-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M Bis-Tris pH 5.5, 200 mM MgCl2, 23% PEG 3350
|
Resolution 2.91 Å R-free 0.250 |
| 5JER Structure of Rotavirus NSP1 bound to IRF-3 Deposited 2016-04-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain C
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M Bis-Tris pH 5.5, 200 mM MgCl2, 23% PEG 3350
|
Resolution 2.91 Å R-free 0.250 |
| 5JER Structure of Rotavirus NSP1 bound to IRF-3 Deposited 2016-04-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 3 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain E
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M Bis-Tris pH 5.5, 200 mM MgCl2, 23% PEG 3350
|
Resolution 2.91 Å R-free 0.250 |
| 5JER Structure of Rotavirus NSP1 bound to IRF-3 Deposited 2016-04-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 4 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain G
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M Bis-Tris pH 5.5, 200 mM MgCl2, 23% PEG 3350
|
Resolution 2.91 Å R-free 0.250 |
| 5JER Structure of Rotavirus NSP1 bound to IRF-3 Deposited 2016-04-18 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 5 Protein heterocomplex Heteromer;Protein × 8 PDB declaration: octameric |
Chain A
189–427(239 aa)
Fragment:UNP residues 189-427
Chain C
189–427(239 aa)
Fragment:UNP residues 189-427
Chain E
189–427(239 aa)
Fragment:UNP residues 189-427
Chain G
189–427(239 aa)
Fragment:UNP residues 189-427
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;277 K;0.1 M Bis-Tris pH 5.5, 200 mM MgCl2, 23% PEG 3350
|
Resolution 2.91 Å R-free 0.250 |
| 6SIV Structure of HPV16 E6 oncoprotein in complex with mutant IRF3 LxxLL motif Deposited 2019-08-12 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Insufficient information Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
137–148(12 aa)
|
Mutation:;K84A,K240A,E360A,K363A,D364A,N2146E,M2147E,V2148R,K84A,K240A,E360A,K363A,D364A,N2146E,M2147E,V2148R,K84A,K240A,E360A,K363A,D364A,N2146E,M2147E,V2148R,K84A,K240A,E360A,K363A,D364A,N2146E,M2147E,V2148R ; | ZN ZINC ION × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
EVAPORATION;298 K;PEG 1500 30%
|
Resolution 1.75 Å R-free 0.220 |
| 6SJA Structure of HPV16 E6 oncoprotein in complex with IRF3 LxxLL motif Deposited 2019-08-13 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Insufficient information Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
137–148(12 aa)
|
Mutation:E360A,K363A,D364A,K84A,K240A | ZN ZINC ION × 2 |
X-RAY DIFFRACTION
X-ray crystallization conditions
EVAPORATION;pH 6.8;298 K;PEG 1500 30%
|
Resolution 1.50 Å R-free 0.191 |
| 7JFL Crystal structure of human phosphorylated IRF-3 bound to CBP Deposited 2020-07-17 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
189–398(210 aa)
Chain B
189–398(210 aa)
|
Non-standard monomer:Yes (specific site not provided by mmCIF) Non-standard monomer:Yes (specific site not provided by mmCIF) | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 5;277 K;0.1 M sodium acetate pH 5.0, 0.2 M MgCl2, 5% PEG 3350
|
Resolution 1.68 Å R-free 0.223 |
16 other PDB entries and 29 assemblies. Open the comparison page and filter oligomeric states
View Construct and Data Evidence
| UniProt name | IRF3_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A; PDBConstruct 1–255; UniProt 173–427 Author chain B; PDBConstruct 1–255; UniProt 173–427 |