Beta pleated sheet || Secondary structure of protein

This video describes the structural features of beta pleated sheet which is one type of secondary structure of protein. The beta sheet, (β-sheet) (also β-pleated sheet) is a common motif of the regular protein secondary structure. Beta sheets consist of beta strands (β-strands) connected laterally by at least two or three backbone hydrogen bonds, forming a generally twisted, pleated sheet. A β-strand is a stretch of polypeptide chain typically 3 to 10 amino acids long with backbone in an extended conformation. The supramolecular association of β-sheets has been implicated in the formation of the fibrils and protein aggregates observed in amyloidosis, notably Alzheimer's disease.

[@alexlee3511]

Hi sir, I wanna know the actual arrangement of amino acids in a polypeptide. As I see many of them in online are arranged in a form like all R groups are pointed upward, I think it may make no sense. So I wanna know if all the amino acid should be placed like R group 1 upward, R group 2 downward, R group 3 upward, etc.？

[@romanperez2814]

Excellent video Dr!
Saludos!

[@animatedbiologywitharpan]

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[@advaithar3058]

dimer formed between 2 beta pleated sheet in called as?

[@derpydogz0259]

If the beta plated sheet is formed out of a characteristic all amino acids have (backbone polarity) then why aren’t all amino acids prone to immediately take the form of a beta sheet?

[@matthew_quizon]

ot all amino acids are prone to immediately form a beta sheet because the final three-dimensional structure of a protein is determined by a combination of factors including the sequence of amino acids, the strength of hydrogen bonds, and the interactions with the surrounding environment. Additionally, the formation of beta sheets depends on the stability of the sheet relative to other possible structures, such as alpha helices or coil regions, and other biophysical forces that can drive protein folding. Thus, while beta sheet formation is a possibility for many amino acids, it is not a guarantee and will depend on the specific conditions present during protein folding.

[@biologyflavour5512]

Sir you don't have explained about antiparallel beta pleated sheet 😢

[@medicalbiochemistry_]

Good job

[@oluwatomioredein]

@3:15, is the top line supposed to say residues in beta pleated sheets as opposed to alpha helices, please?

[@naomitial2429]

my thought exactly! I'm so confused

[@ziasatti5316]

Very informative lecture
Love from pakistan❣️

[@animatedbiologywitharpan]

Thanks a lot. Please share with your friends. Love ❤ from 🇮🇳 India. Please put your suggestions in the comments. I will try to make videos on that as well.

[@asiakhatoon954]

Thank you so much this video really helped me.

[@animatedbiologywitharpan]

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[@animatedbiologywitharpan]

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[@asiakhatoon954]

@@animatedbiologywitharpan sure, why not.

[@abhinabsarma482]

Sir you didn't said anything about loops and turns as secondary structure, please make videos on this two

[@animatedbiologywitharpan]

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[@David-zi9nr]

Awesome 👍🏽

[@animatedbiologywitharpan]

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[@David-zi9nr]

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[@sanughosh6540]

Thanks for the information

[@animatedbiologywitharpan]

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[@nanhelalgupta476]

🤩🙏

[@rainbow4130]

Thank U sir 🙏

[@animatedbiologywitharpan]

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[@drranafatima7875]

Wonderful

[@animatedbiologywitharpan]

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[@animatedbiologywitharpan]

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