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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：P32501 New Search
9PDB entries
9Biological assembly
17chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state 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
1PAQ CRYSTAL STRUCTURE OF THE CATALYTIC FRAGMENT OF EUKARYOTIC INITIATION FACTOR 2B EPSILON Deposited 2003-05-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 524–712（189 aa） Fragment：catalytic domain, residues (524-712)
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, SITTING DROP；pH 5.75；277 K；PEG 2000MME, ammonium acetate, Tris-HCl, pH 5.75, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 2.30 Å R-free 0.272
6I3M eIF2B:eIF2 complex, phosphorylated on eIF2 alpha serine 52. Deposited 2018-11-06 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain G 1–712（712 aa）
Chain H 1–712（712 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；Solutions for sample preparation were made fresh, filter sterilized, and degassed.
cryo-EM vitrification conditions Cryogen ETHANE；Blot for 2 seconds before plunging
Resolution 3.93 Å
6I7T eIF2B:eIF2 complex Deposited 2018-11-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain G 1–712（712 aa）
Chain H 1–712（712 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；Solutions for sample preparation were made fresh, filter sterilized, and degassed.
cryo-EM vitrification conditions Cryogen ETHANE；Blot for 1 second before plunging
Resolution 4.61 Å
6QG0 Structure of eIF2B-eIF2 (phosphorylated at Ser51) complex (model 1) Deposited 2019-01-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain I 1–712（712 aa）
Chain J 1–712（712 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.15 Å
6QG1 Structure of eIF2B-eIF2 (phosphorylated at Ser51) complex (model 2) Deposited 2019-01-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain I 1–712（712 aa）
Chain J 1–712（712 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.25 Å
6QG2 Structure of eIF2B-eIF2 (phosphorylated at Ser51) complex (model A) Deposited 2019-01-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain I 1–712（712 aa）
Chain J 1–712（712 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.55 Å
6QG3 Structure of eIF2B-eIF2 (phosphorylated at Ser51) complex (model B) Deposited 2019-01-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain I 1–712（712 aa）
Chain J 1–712（712 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 9.40 Å
6QG5 Structure of eIF2B-eIF2 (phosphorylated at Ser51) complex (model C) Deposited 2019-01-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain I 1–712（712 aa）
Chain J 1–712（712 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 10.10 Å
6QG6 Structure of eIF2B-eIF2 (phosphorylated at Ser51) complex (model D) Deposited 2019-01-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain I 1–712（712 aa）
Chain J 1–712（712 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 10.40 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.