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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：Q03721 New Search
3PDB entries
3Biological assembly
3chain/assembly records
Main Difference Dimensions in This Set
Different mutation/modification Different experimental conditions

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
1B4G CONTROL OF K+ CHANNEL GATING BY PROTEIN PHOSPHORYLATION: STRUCTURAL SWITCHES OF THE INACTIVATION GATE, NMR, 22 STRUCTURES Deposited 1998-12-22 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–30（30 aa） Fragment：INACTIVATION DOMAIN
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 3.5；283 K
Resolution not provided
1B4I Control of K+ Channel Gating by protein phosphorylation: structural switches of the inactivation gate, NMR, 22 structures Deposited 1998-12-22 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–30（30 aa） Fragment：INACTIVATION GATE
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 3.4；283 K
Resolution not provided
1ZTN INACTIVATION GATE OF POTASSIUM CHANNEL RAW3, NMR, 8 STRUCTURES Deposited 1996-11-15 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–30（30 aa） Fragment：INACTIVATION GATE, N-terminal
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 3.5；283 K
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.