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: 5HLE
Structural basis of backwards motion in kinesin-14: minus-end directed nKn664 in the ADP state
Chain
A
Tyrosine-protein kinase HCK - Homo sapiens