Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Ribbon representation of four PDZ-domain structures. PDZ2 of PTP-BL (1gm1), second and third PDZ domains of disc large homolog 2, PSD-93 (2byg and 2he2, respectively) and β2S-PDZ (2vrf). In the foreplane are α-helix B and the protein-binding pocket. The side chains of charged residues are shown in all four structures. The amino acids in the characteristic cluster of arginine and lysine residues in β2S-PDZ are labeled.
