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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：Q9XSW6 New Search
1PDB entries
3Biological assembly
6chain/assembly records
Main Difference Dimensions in This Set
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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
1R9N Crystal Structure of human dipeptidyl peptidase IV in complex with a decapeptide (tNPY) at 2.3 Ang. Resolution Deposited 2003-10-30 Assembly 1 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 29–38（10 aa）
Chain F 29–38（10 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 11 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.25；298 K；PEG 2000, Bicine, pH 8.25, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Resolution 2.30 Å R-free 0.251
1R9N Crystal Structure of human dipeptidyl peptidase IV in complex with a decapeptide (tNPY) at 2.3 Ang. Resolution Deposited 2003-10-30 Assembly 2 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain G 29–38（10 aa）
Chain H 29–38（10 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.25；298 K；PEG 2000, Bicine, pH 8.25, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Resolution 2.30 Å R-free 0.251
1R9N Crystal Structure of human dipeptidyl peptidase IV in complex with a decapeptide (tNPY) at 2.3 Ang. Resolution Deposited 2003-10-30 Assembly 3 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain G 29–38（10 aa）
Chain H 29–38（10 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.25；298 K；PEG 2000, Bicine, pH 8.25, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Resolution 2.30 Å R-free 0.251

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.