Welcome to Qgrid:
Detection of charged and hydrophobic clusters in proteins
This server provides cluster tree diagrams for proteins based on the charges
on the atoms or hydrophobicity of a residue. Euclidean distances between charged
atoms (or CA atoms of hydrophobic residues) are calculated and cluster tree
diagrams are generated using hierarchical clustering method. These diagrams
can be used to visually inspect hydrophobic and charged regions in proteins quickly.
More help is available Here .
Reference: Shandar Ahmad and Akinori Sarai,
Nucl. Acid Res. 32 (2004) W104-107
To get a Qgrid plot of your protein, please upload a co-ordinate file in PDB format (Maximum file size is 1MB).