Published in Hepatitis Weekly, March 31st, 1997
"The three-dimensional map reveals the complete fold of the polypeptide chain, which is quite unlike the previously solved viral capsid proteins and is largely (alpha)-helical," researcher B. Bottcher and colleagues wrote ("Determination of the Folds of the Core Protein of HBV by Electron Cryomicroscopy," Nature, March 6, 1997;386:88-94).
The dimer clustering of subunits produces spikes on the surface of the shell which consist of radical bundles of four long (alpha)-helices.
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