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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：Q04491 New Search
20PDB entries
27Biological assembly
48chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics

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
2PM6 Crystal Structure of yeast Sec13/31 edge element of the COPII vesicular coat, native version Deposited 2007-04-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 1–297（297 aa）
Chain D 1–297（297 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；277 K；15% PEG 4000, 10% DMSO, 6% dioxanie, 0.1M Tris-HCl, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.45 Å R-free 0.301
2PM7 Crystal structure of yeast Sec13/31 edge element of the COPII vesicular coat, selenomethionine version Deposited 2007-04-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 1–297（297 aa）
Chain D 1–297（297 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 7.5；277 K；15% PEG 4000, 10% DMSO, 6% dioxane, 0.1M Tris-HCl, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.35 Å R-free 0.298
2PM9 Crystal structure of yeast Sec13/31 vertex element of the COPII vesicular coat Deposited 2007-04-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–297（297 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.2；295 K；8% PEG 3350, 0.1M tri-sodium citrate, 10mM manganese chloride, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 3.30 Å R-free 0.305
3IKO Crystal structure of the heterotrimeric Sec13-Nup145C-Nup84 nucleoporin complex Deposited 2009-08-06 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–297（297 aa） Fragment：UNP residues 1-297
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；PEG 20000, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.20 Å R-free 0.273
3IKO Crystal structure of the heterotrimeric Sec13-Nup145C-Nup84 nucleoporin complex Deposited 2009-08-06 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain D 1–297（297 aa） Fragment：UNP residues 1-297
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；PEG 20000, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.20 Å R-free 0.273
3IKO Crystal structure of the heterotrimeric Sec13-Nup145C-Nup84 nucleoporin complex Deposited 2009-08-06 Assembly 3 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain G 1–297（297 aa） Fragment：UNP residues 1-297
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；PEG 20000, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.20 Å R-free 0.273
3JRO NUP84-NUP145C-SEC13 edge element of the NPC lattice Deposited 2009-09-08 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–297（297 aa）
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 5.7；295 K；1.15M sodium malonate, pH 5.7, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 4.00 Å R-free 0.329
3JRP SEC13 with NUP145C (AA109-179) insertion blade Deposited 2009-09-08 Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–297（297 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.3；289 K；0.1M Tris, 22% PEG 4000, 0.25 M LiCl, pH 8.3, VAPOR DIFFUSION, HANGING DROP, temperature 289K
Resolution 2.60 Å R-free 0.254
3MZK Sec13/Sec16 complex, S.cerevisiae Deposited 2010-05-12 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–297（297 aa）
Chain D 1–297（297 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；289 K；0.1mM bis-Tris propane, 0.2M NaBr, 12% polyethylene glycol 3350, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 289K
Resolution 2.69 Å R-free 0.243
3MZL Sec13/Sec31 edge element, loop deletion mutant Deposited 2010-05-12 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–297（297 aa）
Chain C 1–297（297 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.9；289 K；0.1mM bis-Tris propane, 0.2M sodium citrate, 16% polyethylene glycol 3350, pH 6.9, VAPOR DIFFUSION, HANGING DROP, temperature 289K
Resolution 2.80 Å R-free 0.300
3MZL Sec13/Sec31 edge element, loop deletion mutant Deposited 2010-05-12 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 1–297（297 aa）
Chain G 1–297（297 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.9；289 K；0.1mM bis-Tris propane, 0.2M sodium citrate, 16% polyethylene glycol 3350, pH 6.9, VAPOR DIFFUSION, HANGING DROP, temperature 289K
Resolution 2.80 Å R-free 0.300
4BZJ The structure of the COPII coat assembled on membranes Deposited 2013-07-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 2–292（291 aa）
Chain F 2–292（291 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer HEPES, 50 MM KOAC, 1.2 MM MGCL2；pH 6.8；HEPES, 50 MM KOAC, 1.2 MM MGCL2
cryo-EM vitrification conditions Cryogen ETHANE；ETHANE; HOMEMADE PLUNGER
Resolution 40.00 Å
4BZK The structure of the COPII coat assembled on membranes Deposited 2013-07-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 1–297（297 aa）
Chain F 1–297（297 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer HEPES, 50 MM KOAC, 1.2 MM MGCL2；pH 6.8；HEPES, 50 MM KOAC, 1.2 MM MGCL2
cryo-EM vitrification conditions Cryogen ETHANE；ETHANE; HOMEMADE PLUNGER
Resolution 40.00 Å
4XMM Structure of the yeast coat nucleoporin complex, space group C2 Deposited 2015-01-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain A 1–297（297 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；294 K；PEG 20000, ethanol, MES
Resolution 7.38 Å R-free 0.353
4XMN Structure of the yeast coat nucleoporin complex, space group P212121 Deposited 2015-01-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
Chain A 2–297（296 aa）
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；294 K；PEG 20000, ethanol, MES
Resolution 7.60 Å R-free 0.347
6ZG5 COPII on membranes, outer coat right-handed rod, class1 Deposited 2020-06-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 1–297（297 aa）
Chain F 1–297（297 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 6.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 40.00 Å
6ZG6 COPII on membranes, outer coat vertex Deposited 2020-06-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain B 1–297（297 aa）
Chain D 1–297（297 aa）
Chain F 1–297（297 aa）
Chain H 1–297（297 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 6.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 12.00 Å
6ZL0 COPII on membranes, outer coat left-handed rod Deposited 2020-06-30 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 1–297（297 aa）
Chain D 1–297（297 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 6.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 40.00 Å
7N84 Double nuclear outer ring from the isolated yeast NPC Deposited 2021-06-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 136 PDB declaration: 136-meric（136） Consistent with protein count
Chain d 1–297（297 aa）
Chain o 1–297（297 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 11.60 Å
7N84 Double nuclear outer ring from the isolated yeast NPC Deposited 2021-06-13 Assembly 2 Protein heterocomplex Heteromer；Protein × 17 PDB declaration: heptadecameric（17） Consistent with protein count
Chain d 1–297（297 aa）
Chain o 1–297（297 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 11.60 Å
7N84 Double nuclear outer ring from the isolated yeast NPC Deposited 2021-06-13 Assembly 3 Protein heterocomplex Heteromer；Protein × 17 PDB declaration: heptadecameric（17） Consistent with protein count
Chain d 1–297（297 aa）
Chain o 1–297（297 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 11.60 Å
7N9F Structure of the in situ yeast NPC Deposited 2021-06-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 448 PDB declaration: 448-meric（448） Consistent with protein count
Chain d 1–297（297 aa）
Chain k 1–297（297 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；A custom-built vitrification device (Max Planck Institute for Biochemistry, Munich)
Resolution 37.00 Å
7N9F Structure of the in situ yeast NPC Deposited 2021-06-17 Assembly 2 Protein heterocomplex Heteromer；Protein × 56 PDB declaration: 56-meric（56） Consistent with protein count
Chain d 1–297（297 aa）
Chain k 1–297（297 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；A custom-built vitrification device (Max Planck Institute for Biochemistry, Munich)
Resolution 37.00 Å
7N9F Structure of the in situ yeast NPC Deposited 2021-06-17 Assembly 3 Protein heterocomplex Heteromer；Protein × 56 PDB declaration: 56-meric（56） Consistent with protein count
Chain d 1–297（297 aa）
Chain k 1–297（297 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE；A custom-built vitrification device (Max Planck Institute for Biochemistry, Munich)
Resolution 37.00 Å
8ADL Cryo-EM structure of the SEA complex Deposited 2022-07-08 Assembly 1 Protein heterocomplex Heteromer；Protein × 22 PDB declaration: 22-meric（22） Consistent with protein count
Chain H 1–297（297 aa）
Chain P 1–297（297 aa）
Not recorded ZN ZINC ION × 28 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.95 Å
8TIE Double nuclear outer ring of Nup84-complexes from the yeast NPC Deposited 2023-07-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: tetradecameric（14） Consistent with protein count
Chain d 1–297（297 aa）
Chain o 1–297（297 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；20mM HEPES,50mM Potassium acetate,20mM NaCl,2mM MgCl2,1mM DTT
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.10 Å
9H5K Cryo-EM structure of the SEAC-EGOC supercomplex Deposited 2024-10-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 32 PDB declaration: 32-meric（32） Consistent with protein count
Chain H 1–297（297 aa）
Chain P 1–297（297 aa）
Not recorded ZN ZINC ION × 28 MG MAGNESIUM ION × 2 AF3 ALUMINUM FLUORIDE × 2 GDP GUANOSINE-5'-DIPHOSPHATE × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.