pdbU • Universal PDB Query Machine • PDB Terminator • General PDB Parameter Search
PDB Cell Parameter Search • PDB Percent Solvet Search • Matthews Coefficient Search

This server provides a method of searching the PDB (189,412 in our database, last updated May 18, 2022) for structures matching the selected criteria below. You may filter by Matthew's Coefficient, percent solvent, space group, cell volume, submission date, and cell parameters. You must check the parameter in order to make it an active filter. After your selection has been made, you may pick which parameter you would like to use to order the results.

• Only enter a value for a parameter if you want it included in the search.
Example: Enter 2.5 in the Matthews Coefficient field and click any where to see the number of hits. Then out >= 60% solvent to get the intersection of the 2. Scroll down to push the button to collect the structure information

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Matthews Coefficient

Disregard 26775 PDB records with no Vm (14.136%)
← To Start: try entering 2.5 here, then click anywhere

Percent solvent

Disregard 26664 PDB records with no SP (14.077%)

molecular weight


cell volume


Space Group

Cell parameters
± ± ± ± ± ±

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