This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1htm
From Proteopedia
STRUCTURE OF INFLUENZA HAEMAGGLUTININ AT THE PH OF MEMBRANE FUSION
Overview
Low pH induces a conformational change in the influenza virus haemagglutinin, which then mediates fusion of the viral and host cell membranes. The three-dimensional structure of a fragment of the haemagglutinin in this conformation reveals a major refolding of the secondary and tertiary structure of the molecule. The apolar fusion peptide moves at least 100 A to one tip of the molecule. At the other end a helical segment unfolds, a subdomain relocates reversing the chain direction, and part of the structure becomes disordered.
About this Structure
1HTM is a Protein complex structure of sequences from Bacteria. The following page contains interesting information on the relation of 1HTM with [Hemagglutinin]. Full crystallographic information is available from OCA.
Reference
Structure of influenza haemagglutinin at the pH of membrane fusion., Bullough PA, Hughson FM, Skehel JJ, Wiley DC, Nature. 1994 Sep 1;371(6492):37-43. PMID:8072525 Page seeded by OCA on Fri May 2 19:12:58 2008
