Inhibitor of nuclear factor kappa-B kinase subunit beta
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 2–664 Chain B; UniProt 2–664 | Non-standard monomer:Yes (specific site not provided by mmCIF) | KSA K-252A × 2 | X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions | Resolution 2.83 Å R-free 0.236 |
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 4KIK | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 3BRT NEMO/IKK association domain structure Deposited 2007-12-21 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Insufficient information Heteromer;Protein × 4 PDB declaration: tetrameric |
Chain A
701–730(30 aa)
Fragment:Fusion protein consists of UNP residues 701-730 of IKK-B and nemo-binding domain of IKK-A
Chain C
701–730(30 aa)
Fragment:Fusion protein consists of UNP residues 701-730 of IKK-B and nemo-binding domain of IKK-A
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
microbatch under oil;pH 8;298 K;35% Peg 8K, 0.1M Tris pH 8, 0.2M Ammonium Chloride, 10mM Dithiothreitol., microbatch under oil, temperature 298K
|
Resolution 2.25 Å R-free 0.282 |
| 3BRT NEMO/IKK association domain structure Deposited 2007-12-21 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Insufficient information Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
701–730(30 aa)
Fragment:Fusion protein consists of UNP residues 701-730 of IKK-B and nemo-binding domain of IKK-A
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
microbatch under oil;pH 8;298 K;35% Peg 8K, 0.1M Tris pH 8, 0.2M Ammonium Chloride, 10mM Dithiothreitol., microbatch under oil, temperature 298K
|
Resolution 2.25 Å R-free 0.282 |
| 3BRT NEMO/IKK association domain structure Deposited 2007-12-21 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 3 Insufficient information Heteromer;Protein × 2 PDB declaration: dimeric |
Chain C
701–730(30 aa)
Fragment:Fusion protein consists of UNP residues 701-730 of IKK-B and nemo-binding domain of IKK-A
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
microbatch under oil;pH 8;298 K;35% Peg 8K, 0.1M Tris pH 8, 0.2M Ammonium Chloride, 10mM Dithiothreitol., microbatch under oil, temperature 298K
|
Resolution 2.25 Å R-free 0.282 |
| 3BRT NEMO/IKK association domain structure Deposited 2007-12-21 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 4 Insufficient information Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
701–730(30 aa)
Fragment:Fusion protein consists of UNP residues 701-730 of IKK-B and nemo-binding domain of IKK-A
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
microbatch under oil;pH 8;298 K;35% Peg 8K, 0.1M Tris pH 8, 0.2M Ammonium Chloride, 10mM Dithiothreitol., microbatch under oil, temperature 298K
|
Resolution 2.25 Å R-free 0.282 |
| 3BRT NEMO/IKK association domain structure Deposited 2007-12-21 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 5 Insufficient information Heteromer;Protein × 2 PDB declaration: dimeric |
Chain C
701–730(30 aa)
Fragment:Fusion protein consists of UNP residues 701-730 of IKK-B and nemo-binding domain of IKK-A
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
microbatch under oil;pH 8;298 K;35% Peg 8K, 0.1M Tris pH 8, 0.2M Ammonium Chloride, 10mM Dithiothreitol., microbatch under oil, temperature 298K
|
Resolution 2.25 Å R-free 0.282 |
| 3BRV NEMO/IKKb association domain structure Deposited 2007-12-21 | 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
701–745(45 aa)
Fragment:NEMO-binding
Chain C
701–745(45 aa)
Fragment:NEMO-binding
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 8.5;298 K;30% Peg 4K, 0.1M Tris pH 8.5, 0.2M MgCl2, 10mM DTT, 10% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 2.20 Å R-free 0.294 |
| 3BRV NEMO/IKKb association domain structure Deposited 2007-12-21 | 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 A
701–745(45 aa)
Fragment:NEMO-binding
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 8.5;298 K;30% Peg 4K, 0.1M Tris pH 8.5, 0.2M MgCl2, 10mM DTT, 10% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 2.20 Å R-free 0.294 |
| 3BRV NEMO/IKKb association domain structure Deposited 2007-12-21 | 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 C
701–745(45 aa)
Fragment:NEMO-binding
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 8.5;298 K;30% Peg 4K, 0.1M Tris pH 8.5, 0.2M MgCl2, 10mM DTT, 10% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 2.20 Å R-free 0.294 |
| 3BRV NEMO/IKKb association domain structure Deposited 2007-12-21 | 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 A
701–745(45 aa)
Fragment:NEMO-binding
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 8.5;298 K;30% Peg 4K, 0.1M Tris pH 8.5, 0.2M MgCl2, 10mM DTT, 10% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 2.20 Å R-free 0.294 |
| 3BRV NEMO/IKKb association domain structure Deposited 2007-12-21 | Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 5 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain C
701–745(45 aa)
Fragment:NEMO-binding
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 8.5;298 K;30% Peg 4K, 0.1M Tris pH 8.5, 0.2M MgCl2, 10mM DTT, 10% glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 2.20 Å R-free 0.294 |
| 4E3C X-ray crystal structure of human IKK2 in an active conformation Deposited 2012-03-09 | Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
11–669(659 aa)
Fragment:UNP Residues 11-669
Chain F
11–669(659 aa)
Fragment:UNP Residues 11-669
|
Mutation:S177E, S181E Mutation:S177E, S181E | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 6.5;291 K;1.2M sodium malonate, 250mM ammonium acetate, 10mM DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K
|
Resolution 3.98 Å R-free 0.299 |
| 4E3C X-ray crystal structure of human IKK2 in an active conformation Deposited 2012-03-09 | Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain B
11–669(659 aa)
Fragment:UNP Residues 11-669
Chain C
11–669(659 aa)
Fragment:UNP Residues 11-669
|
Mutation:S177E, S181E Mutation:S177E, S181E | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 6.5;291 K;1.2M sodium malonate, 250mM ammonium acetate, 10mM DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K
|
Resolution 3.98 Å R-free 0.299 |
| 4E3C X-ray crystal structure of human IKK2 in an active conformation Deposited 2012-03-09 | Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 3 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain D
11–669(659 aa)
Fragment:UNP Residues 11-669
Chain E
11–669(659 aa)
Fragment:UNP Residues 11-669
|
Mutation:S177E, S181E Mutation:S177E, S181E | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 6.5;291 K;1.2M sodium malonate, 250mM ammonium acetate, 10mM DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K
|
Resolution 3.98 Å R-free 0.299 |
| 8OMV Crystal structure of the constitutively active S117E/S181E mutant of human IKK2 Deposited 2023-03-31 | Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain A
1–669(669 aa)
Chain B
1–669(669 aa)
|
Mutation:S177E, S181E Mutation:S177E, S181E | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 6.5;277 K;1.6M (NH4)2SO4, 0.1M Bis-Tris HCl pH 6.5, 10% 2-propanol
|
Resolution 4.16 Å R-free 0.299 |
| 8OMV Crystal structure of the constitutively active S117E/S181E mutant of human IKK2 Deposited 2023-03-31 | Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain C
1–669(669 aa)
Chain D
1–669(669 aa)
|
Mutation:S177E, S181E Mutation:S177E, S181E | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 6.5;277 K;1.6M (NH4)2SO4, 0.1M Bis-Tris HCl pH 6.5, 10% 2-propanol
|
Resolution 4.16 Å R-free 0.299 |
| 8OMV Crystal structure of the constitutively active S117E/S181E mutant of human IKK2 Deposited 2023-03-31 | Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 3 Protein homooligomer Homooligomer;Protein × 2 PDB declaration: dimeric |
Chain E
1–669(669 aa)
|
Mutation:S177E, S181E | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 6.5;277 K;1.6M (NH4)2SO4, 0.1M Bis-Tris HCl pH 6.5, 10% 2-propanol
|
Resolution 4.16 Å R-free 0.299 |
4 other PDB entries and 16 assemblies. Open the comparison page and filter oligomeric states
View Construct and Data Evidence
| UniProt name | IKKB_HUMAN |
| Isoform | — |
| PDB entities | 1, 2 |
| Chains and sequence ranges | Author chain A; PDBConstruct 8–670; UniProt 2–664 Author chain B; PDBConstruct 8–670; UniProt 2–664 |