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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：P18527 New Search
3PDB entries
5Biological assembly
5chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification 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
1UB5 Crystal structure of Antibody 19G2 with hapten at 100K Deposited 2003-03-30 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain H 1–97（97 aa）
Not recorded SPB 4-(4-STYRYL-PHENYLCARBAMOYL)-BUTYRIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；277 K；PEG2000, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.00 Å R-free 0.267
1UB5 Crystal structure of Antibody 19G2 with hapten at 100K Deposited 2003-03-30 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–97（97 aa）
Not recorded SPB 4-(4-STYRYL-PHENYLCARBAMOYL)-BUTYRIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；277 K；PEG2000, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.00 Å R-free 0.267
1UB6 Crystal structure of Antibody 19G2 with sera ligand Deposited 2003-03-30 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain H 4–97（94 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；277 K；PEG4000, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.12 Å R-free 0.292
1UB6 Crystal structure of Antibody 19G2 with sera ligand Deposited 2003-03-30 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 4–97（94 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；277 K；PEG4000, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 2.12 Å R-free 0.292
2DTM Thermodynamic and structural analyses of hydrolytic mechanism by catalytic antibodies Deposited 2006-07-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain H 1–97（97 aa） Fragment：FAB FRAGMENT
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.7；293 K；50mM Tris-HCl(pH 8.7), 16%(w/v) PEG4000, 0.1mM EDTA, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.25 Å R-free 0.278

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.