secondary structure of proteins alpha helix

[@muhammadneanaa1611]

I study abroad at a Japanese university. All lectures are in Japanese. I had an assignment on helical wheels where the professor did not even explain enough. You saved me. I would not be exaggerating that you are doing something noble by publishing this material for everyone.

[@FeraleHubbard]

OMG you just explained in a few minutes what my professor couldn't do in 20 min. Thank you!!

[@lisamueller6817]

Thank you! Your lessons are pretty cool and easy to understand. You are doing a better job than my teacher to be honest! Hope you update something new soon :)

[@nyfc31]

Thank you so much ! this is my exact homework problem, its well explained.

[@ReparentingDiary]

Hi there,
Thanks for making this video. But why every 100 degree you need to put one amino acid? Thank you in advance!

[@Lwilight]

PAY Hello,
The reason for 100° is very simple. We have 3.6 amino acids per turn (360°). 360°/3.6aa gives us 100°.

[@marcushendriksen8415]

I wish I had seen this video before taking my biochemistry test, would have made it much easier. One question though: why are the residues placed 100 degrees apart?

[@ranjitsbioconcept6264]

Per turn we have 3.6 residue ,,hence ,,, 360/3.6=100

[@afraashtiani]

Thank you so much your video is so useful, could you please talk about Anti-Parallel B-strands and parallel B-strands and how to draw them as well? thank you again

[@InfiniteUniverse88]

Lysine often breaks convention. It can form two hydrogen bonds with its nearest neighbor on the polypeptide chain. It can also form a hydrogen bond outside of the alpha helix, even when deep inside the helix. When at the end of the helix, Lysine can even form 3 hydrogen bonds.

[@M_M-wb]

So helpful!!! Thanks!

[@vincekumar4601]

If its i+4, doesn't the first residue hydrogen bond with the fifth( you said fourth)?

[@TheSacknasty]

is that part of a leucine zipper?

[@HieuNguyen-wc9bq]

thank you! I find this really helpful

[@nutanpreety]

@mofatteh
its said as 'i+4' where "i" defines any interaction between the atoms and here, it is hydrogen bonding

[@ranjitsbioconcept6264]

Thanks ,,sir , it's really very helpful ,, thanks

[@heyitsezra]

great video, very informative

[@iDRUM211]

You are awesome, thank you!

[@JohnHavenEmerson]

Thank you, you made my day

[@Jenrafoxfairy]

i think your correct my teacher taught it like tht too :)

[@mofatteh]

12:38, amphipathic, not amphoteric, u mixed up...

[@Huda-qr6mq]

Cysteine is hydrophobic not hydrophilic

[@mkudaibe]

@mofatteh
lmao it is i+4 not 1+4 aahhhaahaa

[@0hbe]

Dat Thumb

[@mofatteh]

that's not ' i+4' it's 1+4 ------ 00:40