Krev interaction trapped protein 1
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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count | Chain A; UniProt 417–736 | Fragment:FERM domain | Ras-related protein Rap-1b × 1 (P61224) 7WO 2-hydroxynaphthalene-1-carbaldehyde × 1 MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 | X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;20-25% PEG 3,350, 100 mM Tris, pH 8.5, 100 mM KCl | Resolution 1.85 Å R-free 0.292 |
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 6OQ3 | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Method and Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 3U7D Crystal structure of the KRIT1/CCM1 FERM domain in complex with the heart of glass (HEG1) cytoplasmic tail Deposited 2011-10-13 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
417–736(320 aa)
Fragment:FERM domain, residues 417-736
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 4;293 K;10% PEG 4000 and 100mM Citrate, pH 4.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K
|
Resolution 2.49 Å R-free 0.309 |
| 3U7D Crystal structure of the KRIT1/CCM1 FERM domain in complex with the heart of glass (HEG1) cytoplasmic tail Deposited 2011-10-13 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain C
417–736(320 aa)
Fragment:FERM domain, residues 417-736
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 4;293 K;10% PEG 4000 and 100mM Citrate, pH 4.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K
|
Resolution 2.49 Å R-free 0.309 |
| 4DX8 ICAP1 in complex with KRIT1 N-terminus Deposited 2012-02-27 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain J
1–198(198 aa)
Fragment:Nudix domain
|
Not recorded | BR BROMIDE ION × 3 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;293 K;2.06M AmSO4, 0.2M Ammonium formate, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 2.54 Å R-free 0.252 |
| 4DX8 ICAP1 in complex with KRIT1 N-terminus Deposited 2012-02-27 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain H
1–198(198 aa)
Fragment:Nudix domain
|
Not recorded | BR BROMIDE ION × 6 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;293 K;2.06M AmSO4, 0.2M Ammonium formate, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 2.54 Å R-free 0.252 |
| 4DX8 ICAP1 in complex with KRIT1 N-terminus Deposited 2012-02-27 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 3 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain I
1–198(198 aa)
Fragment:Nudix domain
|
Not recorded | BR BROMIDE ION × 4 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;293 K;2.06M AmSO4, 0.2M Ammonium formate, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 2.54 Å R-free 0.252 |
| 4DX8 ICAP1 in complex with KRIT1 N-terminus Deposited 2012-02-27 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 4 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain K
1–198(198 aa)
Fragment:Nudix domain
|
Not recorded | BR BROMIDE ION × 3 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;293 K;2.06M AmSO4, 0.2M Ammonium formate, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 2.54 Å R-free 0.252 |
| 4DXA Co-crystal structure of Rap1 in complex with KRIT1 Deposited 2012-02-27 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain B
420–736(317 aa)
Fragment:FERM domain
|
Not recorded | GSP 5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE × 1 MG MAGNESIUM ION × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7;298 K;0.2M KNO3, 20% PEG3350, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 1.95 Å R-free 0.239 |
| 4HDO Crystal structure of the binary Complex of KRIT1 bound to the Rap1 GTPase Deposited 2012-10-02 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
417–736(320 aa)
Fragment:FERM domain (UNP residues 417-736)
|
Not recorded | GOL GLYCEROL × 1 MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 8.5;278 K;15% PEG2000 MME, 100 mM Tris, 100 mM potassium chloride, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 278K
|
Resolution 1.67 Å R-free 0.231 |
| 4HDQ Crystal Structure of the Ternary Complex of KRIT1 bound to both the Rap1 GTPase and the Heart of Glass (HEG1) cytoplasmic tail Deposited 2012-10-02 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 3 PDB declaration: trimeric |
Chain A
417–736(320 aa)
Fragment:FERM domain (UNP residues 417-736)
|
Not recorded | GOL GLYCEROL × 1 MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 8.5;278 K;15% PEG2000 MME, 100 mM Tris, 100 mM potassium chloride, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 278K
|
Resolution 1.95 Å R-free 0.263 |
| 4JIF Co-crystal structure of ICAP1 PTB domain in complex with a KRIT1 peptide Deposited 2013-03-05 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain B
170–198(29 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;298 K;18-20%PEG3350, 0.2M MgCl2, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 1.70 Å R-free 0.226 |
| 4JIF Co-crystal structure of ICAP1 PTB domain in complex with a KRIT1 peptide Deposited 2013-03-05 | 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 B
170–198(29 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;298 K;18-20%PEG3350, 0.2M MgCl2, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 1.70 Å R-free 0.226 |
| 4TKN Structure of the SNX17 FERM domain bound to the second NPxF motif of KRIT1 Deposited 2014-05-27 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain D
225–237(13 aa)
Fragment:UNP residues 225-237
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;1.9 M Ammonium Sulfate, 0.1 M HEPES pH 7.5, 5% PEG 400
|
Resolution 3.00 Å R-free 0.268 |
| 4TKN Structure of the SNX17 FERM domain bound to the second NPxF motif of KRIT1 Deposited 2014-05-27 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain E
225–237(13 aa)
Fragment:UNP residues 225-237
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;1.9 M Ammonium Sulfate, 0.1 M HEPES pH 7.5, 5% PEG 400
|
Resolution 3.00 Å R-free 0.268 |
| 4TKN Structure of the SNX17 FERM domain bound to the second NPxF motif of KRIT1 Deposited 2014-05-27 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 3 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain F
225–237(13 aa)
Fragment:UNP residues 225-237
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;1.9 M Ammonium Sulfate, 0.1 M HEPES pH 7.5, 5% PEG 400
|
Resolution 3.00 Å R-free 0.268 |
| 5D68 Crystal structure of KRIT1 ARD-FERM Deposited 2015-08-11 | Different construct 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
52–529(478 aa)
Fragment:ARD-FERM domain (UNP residues 52-529)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7.3;298 K;0.05 M HEPES, pH 7.3, 8% ethylene glycol, 8% PEG8000
|
Resolution 2.91 Å R-free 0.246 |
| 5D68 Crystal structure of KRIT1 ARD-FERM Deposited 2015-08-11 | Different construct 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
52–529(478 aa)
Fragment:ARD-FERM domain (UNP residues 52-529)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7.3;298 K;0.05 M HEPES, pH 7.3, 8% ethylene glycol, 8% PEG8000
|
Resolution 2.91 Å R-free 0.246 |
| 5D68 Crystal structure of KRIT1 ARD-FERM Deposited 2015-08-11 | Different construct 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
52–529(478 aa)
Fragment:ARD-FERM domain (UNP residues 52-529)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;pH 7.3;298 K;0.05 M HEPES, pH 7.3, 8% ethylene glycol, 8% PEG8000
|
Resolution 2.91 Å R-free 0.246 |
| 6OQ4 Crystal Structure of the Ternary Complex of KRIT1 bound to both the Rap1 GTPase and HKi1 Deposited 2019-04-25 | Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
417–736(320 aa)
Fragment:FERM domain
|
Not recorded | N0G 2-{(Z)-[(2-hydroxynaphthalen-1-yl)methylidene]amino}-N-[(1S)-1-phenylethyl]benzamide × 1 MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 8.5;293 K;20-25% PEG 3,350, 100 mM Tris, pH 8.5, 100 mM KCl
|
Resolution 1.75 Å R-free 0.264 |
| 6UZK Crystal Structure of the Ternary Complex of KRIT1 bound to both the Rap1 GTPase and HKi6 Deposited 2019-11-15 | Different construct Different ligand/ion Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
417–736(320 aa)
|
Not recorded | QMA 2-hydroxy-6-methoxynaphthalene-1-carbaldehyde × 1 MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;293 K;20-25% PEG 3,350, 100 mM Tris, pH 8.5, 100 mM KCl
|
Resolution 1.92 Å R-free 0.286 |
| 8SU8 Co-crystal structure of KRIT1 with a 1-hydroxy 2-naphthaldehyde derivative (6-(furan-2-yl)-2-hydroxy-1-naphthaldehyde). Deposited 2023-05-11 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
419–736(318 aa)
Fragment:FERM domain
|
Not recorded | XE2 (6P)-6-(furan-2-yl)-2-hydroxynaphthalene-1-carbaldehyde × 1 MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;pH 8.5;293 K;20% PEG 3350, 100 mM Tris, pH 8.5, 100 mM KCl
|
Resolution 2.01 Å R-free 0.238 |
| 8T09 Co-crystal structure of KRIT1 with a 1-hydroxy 2-naphthaldehyde derivative (6-ethynyl-2-hydroxy-1-naphthaldehyde) Deposited 2023-05-31 | Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
419–736(318 aa)
Fragment:FERM domain
|
Not recorded | XHZ 6-ethynyl-2-hydroxynaphthalene-1-carbaldehyde × 1 MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP;293 K;20% PEG 3350, 100mM Tris, pH 8.5, 100 mM KCl
|
Resolution 2.15 Å R-free 0.247 |
| 8T7V Co-crystal structure of KRIT1 with a 1-hydroxy 2-naphthaldehyde derivative (6-(furan-2-yl)-2-hydroxy-1-naphthaldehyde) Deposited 2023-06-21 | Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 2 PDB declaration: dimeric |
Chain A
417–736(320 aa)
Fragment:FERM domain
|
Not recorded | ZTA (7M)-7-(furan-2-yl)-2-hydroxynaphthalene-1-carbaldehyde × 1 MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION;293 K;20% PEG 3350, 100mM Tris, pH 8.5, 100mM KCl
|
Resolution 2.25 Å R-free 0.250 |
| 9PVG Co-crystal structure of two CCM2 PTB domains bound to a KRIT1 peptide encompassing NPxF2 and NPxF3 Deposited 2025-08-01 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 1 Protein heterocomplex Heteromer;Protein × 3 PDB declaration: trimeric |
Chain E
227–255(29 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;293 K;0.1 M TrisHCl pH 7, 20% PEG3350
|
Resolution 3.00 Å R-free 0.297 |
| 9PVG Co-crystal structure of two CCM2 PTB domains bound to a KRIT1 peptide encompassing NPxF2 and NPxF3 Deposited 2025-08-01 | Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics | Assembly 2 Protein heterocomplex Heteromer;Protein × 3 PDB declaration: trimeric |
Chain F
227–255(29 aa)
|
Not recorded | No recorded non-water small molecule |
X-RAY DIFFRACTION
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP;293 K;0.1 M TrisHCl pH 7, 20% PEG3350
|
Resolution 3.00 Å R-free 0.297 |
14 other PDB entries and 24 assemblies. Open the comparison page and filter oligomeric states
View Construct and Data Evidence
| UniProt name | KRIT1_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A; PDBConstruct 3–322; UniProt 417–736 |