hydrogen bonds rupture in failure of beta-sheet assembly

The video shows the failure of a beta-sheet model system under shear loading. As the middle strand is pulled with a constant speed, the rupture of hydrogen bonds in clusters leads to failure of the beta-sheet assembly. VIDEO / SINAN KETEN

the structure of a beta-sheet protein, Z1-Z2 telethonin complex, in the giant muscle protein titin. The inset shows the orientation of the protein backbone of three beta strands (in purple) with hydrogen bonds (yellow) holding the assembly together. Buehler and Keten found that hydrogen bonds in beta-sheet structures break in clusters of three or four, even in the presence of many more bonds. FULL TEXT http://nanotechnologytoday.blogspot.com/2008/02/proteins-strength-lies-in-h-b...

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Science & Technology

Tags:

• MIT
• hydrogen
• bonds
• Environmental
• Engineering
• nanotechnology
• biological
• supercomputers
• spider
• silk
• brain
• tissue

[sookietex]

@SandroDaBE4ST Hi, it was a while ago when the visual for the video was uploaded. Originally it had no sound. When we brought it to YouTube there were several options offered on the upload page for the music. The song's default title "The Pepper" was given by YouTube. Luckily for us because while we did like the tune we weren't as diligent then as we are now [live and learn :D] about noting tunes titles. Thanks for stopping by :D

[SandroDaBE4ST]

Very interesting video indeed. I just read the full text in the description yet there is still one thing missing... What is the name of the song? It's so soothing. I do not think that "The Pepper," or "The Peeper," is correct.

[sookietex]

@asat555 Hi, it was so long ago that we matched the music to the vid, we'll have to do some research to retrieve. Will get back to you when we can. Thanks for stopping by.

[asat555]

What's the name of this song and who's playing, I really like it :)

[sookietex]

Thank you, high praise indeed from a Python fan :-)

[crackerlevi]

haha love it