Overview

Tcontacts (Tcons: Tertiary Contacts) allows for a fast and accurate analysis internal protein interactions. Given a PDB file to upload your own file (specifying PDB functionality under construction) and the chain of interest, TCons will provide a graphical representation of the residues in tertiary contact. The contact map will not only indicate the internal contacts present, 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 the internal packing between proteins.

Execute Tcons

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

Reference:

Tsai, J., and Levitt, M.
(2002) Evidence of turn and salt bridge contributions to beta-hairpin stability: MD simulations of C-terminal fragment from the B1 domain of protein G.
Biophys Chem 101-102, 187-201.