WebGL does not seem to be available.

This can be caused by an outdated browser, graphics card driver issue, or bad weather. Sometimes, just restarting the browser helps. Also, make sure hardware acceleration is enabled in your browser.

For a list of supported browsers, refer to http://caniuse.com/#feat=webgl.

Sequence Annotations in 3D: 4Q0N
Crystal Structure of the fifth bromodomain of Human Poly-bromodomain containing protein 1 (PB1) in complex with a hydroxyphenyl-propenone ligand
Chain
D
Protein polybromo-1 - Homo sapiens