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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：P50984 New Search
3PDB entries
3Biological assembly
7chain/assembly records
Main Difference Dimensions in This Set
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
1PEN ALPHA-CONOTOXIN PNI1 Deposited 1996-01-29 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–16（16 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；pH 8.0
Resolution 1.10 Å R-free 0.152
2BR8 Crystal Structure of Acetylcholine-binding Protein (AChBP) from Aplysia californica in complex with an alpha-conotoxin PnIA variant Deposited 2005-05-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric（10） Consistent with protein count
Chain F 1–16（16 aa）
Chain G 1–16（16 aa）
Chain H 1–16（16 aa）
Chain I 1–16（16 aa）
Chain J 1–16（16 aa）
Mutation：YES Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：YES Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：YES Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：YES Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：YES Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 5 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；18 % PEG 3350, 180 MM NA2SO4, 100 MM BIS-TRIS PROPANE PH 7.5
Resolution 2.40 Å R-free 0.250
7N1Z NMR structure of native PnIA Deposited 2021-05-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–16（16 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6；298 K；Ionic strength (raw mmCIF value) 5；Pressure ambient
NMR sample composition 1.0 mg/mL Alpha-conotoxin PnIA, 10 uM [U-99% 2H] DSS, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided

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.