Current Protein Identity：Q14974
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Difference tags compare only the current result set; every original PDB and assembly record remains separate.
Related-Structure Differences
Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.
| PDB Entry | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Experimental Method | Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 1F59 IMPORTIN-BETA-FXFG NUCLEOPORIN COMPLEX Deposited 2000-06-13 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–442（442 aa）
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 5.5；293 K；ammonium sulphate, ammonium acetate, dtt, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 20K
|
Resolution 2.80 Å R-free 0.262 |
| 1F59 IMPORTIN-BETA-FXFG NUCLEOPORIN COMPLEX Deposited 2000-06-13 | Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain B
1–442（442 aa）
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 5.5；293 K；ammonium sulphate, ammonium acetate, dtt, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 20K
|
Resolution 2.80 Å R-free 0.262 |
| 1IBR COMPLEX OF RAN WITH IMPORTIN BETA Deposited 1999-05-14 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain B
1–462（462 aa）
Fragment：RESIDUES 1-462
|
Not recorded | MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 6；pH 6.0
|
Resolution 2.30 Å R-free 0.272 |
| 1IBR COMPLEX OF RAN WITH IMPORTIN BETA Deposited 1999-05-14 | Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain D
1–462（462 aa）
Fragment：RESIDUES 1-462
|
Not recorded | MG MAGNESIUM ION × 1 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 6；pH 6.0
|
Resolution 2.30 Å R-free 0.272 |
| 1M5N Crystal structure of HEAT repeats (1-11) of importin b bound to the non-classical NLS(67-94) of PTHrP Deposited 2002-07-09 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain S
1–485（485 aa）
Fragment：N-terminal domain (Residues 1-485)
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 6；298 K；MES, PEG 4000, sodium chloride, Tween, pH 6, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K, pH 6.00
|
Resolution 2.90 Å R-free 0.297 |
| 1O6O Importin Beta aa1-442 bound to five FxFG repeats from yeast Nsp1p. Second crystal form Deposited 2002-10-10 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–442（442 aa）
Fragment：RESIDUES 1-442
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 5.9；1.2-1.28M AMMONIUM SULPHATE, 100MM AMMONIUM ACETATE, PH 5.9, 30MM DTT
|
Resolution 2.80 Å R-free 0.273 |
| 1O6O Importin Beta aa1-442 bound to five FxFG repeats from yeast Nsp1p. Second crystal form Deposited 2002-10-10 | Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain B
1–442（442 aa）
Fragment：RESIDUES 1-442
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 5.9；1.2-1.28M AMMONIUM SULPHATE, 100MM AMMONIUM ACETATE, PH 5.9, 30MM DTT
|
Resolution 2.80 Å R-free 0.273 |
| 1O6O Importin Beta aa1-442 bound to five FxFG repeats from yeast Nsp1p. Second crystal form Deposited 2002-10-10 | Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain C
1–442（442 aa）
Fragment：RESIDUES 1-442
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 5.9；1.2-1.28M AMMONIUM SULPHATE, 100MM AMMONIUM ACETATE, PH 5.9, 30MM DTT
|
Resolution 2.80 Å R-free 0.273 |
| 1O6P Importin Beta bound to a GLFG Nucleoporin peptide Deposited 2002-10-10 | Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count |
Chain A
1–442（442 aa）
Fragment：IMPORTIN BETA-1 SUBUNIT, RESIDUES 1-442
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 6；100MM AMMONIUM ACETATE PH6.0, 1.2M AMMONIUM SULPHATE, pH 6.00
|
Resolution 2.80 Å R-free 0.267 |
| 1O6P Importin Beta bound to a GLFG Nucleoporin peptide Deposited 2002-10-10 | Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count |
Chain B
1–442（442 aa）
Fragment：IMPORTIN BETA-1 SUBUNIT, RESIDUES 1-442
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 6；100MM AMMONIUM ACETATE PH6.0, 1.2M AMMONIUM SULPHATE, pH 6.00
|
Resolution 2.80 Å R-free 0.267 |
| 1QGK STRUCTURE OF IMPORTIN BETA BOUND TO THE IBB DOMAIN OF IMPORTIN ALPHA Deposited 1999-04-29 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 6.5；pH 6.5
|
Resolution 2.50 Å R-free 0.273 |
| 1QGR STRUCTURE OF IMPORTIN BETA BOUND TO THE IBB DOMAIN OF IMPORTIN ALPHA (II CRYSTAL FORM, GROWN AT LOW PH) Deposited 1999-05-04 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 3.9；pH 3.9
|
Resolution 2.30 Å R-free 0.285 |
| 2P8Q Crystal Structure of human Importin beta bound to the Snurportin1 IBB-domain Deposited 2007-03-22 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 6；285 K；22%PEG 8000, 0.05M Sodium Chloride, 0.1M MES, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 285K
|
Resolution 2.35 Å R-free 0.250 |
| 2Q5D Crystal Structure of Human Importin Beta bound to the Snurportin1 IBB-domain second crystal form Deposited 2007-05-31 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 6；285 K；22%PEG 8000, 0.05M SODIUM CHLORIDE 0.1M MES, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 285K
|
Resolution 3.20 Å R-free 0.328 |
| 2Q5D Crystal Structure of Human Importin Beta bound to the Snurportin1 IBB-domain second crystal form Deposited 2007-05-31 | Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain B
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 6；285 K；22%PEG 8000, 0.05M SODIUM CHLORIDE 0.1M MES, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 285K
|
Resolution 3.20 Å R-free 0.328 |
| 2QNA Crystal structure of human Importin-beta (127-876) in complex with the IBB-domain of Snurportin1 (1-65) Deposited 2007-07-18 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
127–876（750 aa）
Fragment：residues 127-876
|
Not recorded | SO4 SULFATE ION × 2 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP；pH 5.55；283 K；sodium citrate, Ammonium SO4, Ethanol, NaCl, Tris, pH 5.55, VAPOR DIFFUSION, SITTING DROP, temperature 283K
|
Resolution 2.84 Å R-free 0.282 |
| 3LWW Structure of an open and closed conformation of Human Importin Beta bound to the Snurportin1 IBB-domain trapped in the same crystallographic asymmetric unit Deposited 2010-02-24 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；18% PEG 8000, 50 mM sodium chloride, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 3.15 Å R-free 0.313 |
| 3LWW Structure of an open and closed conformation of Human Importin Beta bound to the Snurportin1 IBB-domain trapped in the same crystallographic asymmetric unit Deposited 2010-02-24 | Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain C
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；18% PEG 8000, 50 mM sodium chloride, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 3.15 Å R-free 0.313 |
| 3W5K Crystal structure of Snail1 and importin beta complex Deposited 2013-01-30 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | ZN ZINC ION × 4 | X-RAY DIFFRACTION | mmCIF provides none of the parsed conditions | Resolution 2.60 Å R-free 0.264 |
| 6N88 Cryo-EM structure of the Importin7:Importin beta:Histone H1.0 complex Deposited 2018-11-28 | Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count |
Chain B
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 7
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 6.20 Å |
| 6N89 Cryo-EM structure of the Importin beta:Histone H1.0 complex Deposited 2018-11-28 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 7
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 7.50 Å |
| 8GCN CRYO-EM STRUCTURE OF IMPORTIN ALPHA1/BETA HETERODIMER Deposited 2023-03-02 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.95 Å |
| 9B4Y Cryo-EM structure of importin alpha-1/beta bound to TDP-43 Deposited 2024-03-21 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.74 Å |
| 9BAW Cryo-EM structure of human importin beta-Ran-GTP heterodimer Deposited 2024-04-04 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.30 Å |
| 9BFC Cryo-EM structure of importin alpha-1/beta bound to FG repeats Deposited 2024-04-17 | Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: hexameric（6） Review required |
Chain H
1–876（876 aa）
|
Not recorded | PHE PHENYLALANINE × 2 GLY GLYCINE × 1 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.20 Å |
| 9N85 Cryo-EM structure of human importin beta:Ran-GTP:RanBP1 trimeric complex Deposited 2025-02-07 | Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 2.60 Å |
| 9N86 Cryo-EM structure of human importin beta:importin alpha (IBB) complex Deposited 2025-02-07 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.30 Å |
| 9N87 Cryo-EM structure of human importin beta: xIBB complex Deposited 2025-02-07 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.40 Å |
| 9QEJ Cryo-EM structure of the Importin beta:Importin7:Histone H1.0 complex Deposited 2025-03-10 | Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count |
Chain B
1–876（876 aa）
|
Not recorded | No recorded non-water small molecule | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 7
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 6.20 Å |
| 9YB5 Cryo-EM structure of human importin Beta:Ran-GDP:RanBP1 complex Deposited 2025-09-16 | Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count |
Chain B
2–459（458 aa）
|
Not recorded | MG MAGNESIUM ION × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.20 Å |