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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：A3EXD6 New Search
3PDB entries
4Biological assembly
8chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion 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
7Y96 Crystal structure of the carboxy-terminal domain of a coronavirus M protein fused with a split GFP Deposited 2022-06-24 Assembly 1 Insufficient information Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 116–203（88 aa） Fragment：carboxy-terminal domain
Chain B 116–203（88 aa） Fragment：carboxy-terminal domain
Mutation：R30S,Y39N,M153T,V163A,I171A,A206V Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：R30S,Y39N,M153T,V163A,I171A,A206V 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 5.3；293 K；0.4 M ammonium sulfate, 0.1 M Bis-Tris pH 5.3, PEG 3350 27%, 0.5% ethyl acetate
Resolution 3.42 Å R-free 0.265
7Y9B Crystal structure of the membrane (M) protein of a SARS-COV-2-related coronavirus Deposited 2022-06-24 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–220（220 aa）
Chain B 1–220（220 aa）
Not recorded N8E 3,6,9,12,15-PENTAOXATRICOSAN-1-OL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions LIPIDIC CUBIC PHASE；pH 8.8；293 K；300 mM ammonium formate, 50 mM Tris-HCl pH 8.8, 35% PEG 500 MME, 7.1 mM pentaethylene glycol monooctyl ether
Resolution 3.21 Å R-free 0.293
7Y9B Crystal structure of the membrane (M) protein of a SARS-COV-2-related coronavirus Deposited 2022-06-24 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–220（220 aa）
Chain D 1–220（220 aa）
Not recorded N8E 3,6,9,12,15-PENTAOXATRICOSAN-1-OL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions LIPIDIC CUBIC PHASE；pH 8.8；293 K；300 mM ammonium formate, 50 mM Tris-HCl pH 8.8, 35% PEG 500 MME, 7.1 mM pentaethylene glycol monooctyl ether
Resolution 3.21 Å R-free 0.293
9L9T Crystal structure of a coronaviral M protein in complex with a C-terminal peptide of the N protein Deposited 2024-12-31 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–220（220 aa）
Chain B 1–220（220 aa）
Not recorded N8E 3,6,9,12,15-PENTAOXATRICOSAN-1-OL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions LIPIDIC CUBIC PHASE；pH 8.8；293.15 K；300 mM ammonium formate, 50 mM Tris-HCl pH 8.8, 35% PEG 500 MME, 7.1 mM pentaethylene glycol monooctyl ether, soaked with 1 mM VPSFEDVVDA peptide
Resolution 3.14 Å R-free 0.291

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.