Overview

QContacts allows for a fast and accurate analysis of protein binding interfaces. Given a PDB file to upload your own file (specifying PDB functionality under construction) and the interacting chains of interest, QContacts will provide a graphical representation of the residues in contact. The contact mapwill not only indicate the contacts present between the two proteins, but will also indicate whether the contact is a packing interaction, hydrogen bond, ion pair or salt bridge (hydrogen-bonded ion pair). Contact maps allow for easy visualization and comparison of protein-protein interactions.

Execute Qcons

1.	Upload a local PDB file.          (2M max, non-compressed, PDB files only please.)
2.	Enter chain identifiers: & .
3.	Get results...   or

Reference:

Fischer, T. B., Holmes, J. B., Miller, I. R., Parsons, J. R., Tung, L., Hu, J. C., and Tsai, J. (2006)
Assessing methods for identifying pair-wise atomic contacts across binding interfaces.
J Struct Biol 153, 103-112.

Support:

For questions or comments on improving the program or website please contact Jerry Tsai
QContacts only supports the 20 standard amino acids. Please remove modified amino acids from the PDB file.