50 Replies to “Lecture – 3 Protein Structure – I”

  1. Thank you, Prof.S.Dasgupta, for this highly informative and well-articulated lecture series on amino acids and protein structure. They have been helpful in my study of Biochemistry. David, CA, USA.

  2. too detailed… for those in the states.. unless you are doing a bachelor's in biochem… this is too condensed for pre-med or introductory courses.

  3. speak for yourself there rodeo, this is the same introductory level of detail that pre med and biology students take as undergrads at any credible state university in the US…all you need to understand this is basic intro chemistry

  4. thanks for making these lectures available on the net i wish i could download them n brong them in class for teaching

  5. @youknowhow123 Apparently, the level of education is different. In US high schools, the only biochem exposure is a chapter or two in a regular biology book. But then again, here people don't generally start medical school after high school — college pre-med courses are required. Even in pre-med, biochem receives little attention unless one is taking a separate course on biochemistry.

  6. I don't recall the exact material over which I wrote the original post but it felt detailed even when compared to a biochem book used in med schools — "Lippincott's Biochemistry". I guess it's good for conceptual understanding.

  7. I am in year 11 and i dont understand any of this, when do you do this sort of work? I am a little worried that i might not be able to understand any of these once i do it…

  8. @kuhu0
    For an exam that doesn't provide one of these tables, you should be assuming that if a side chain is able to form hydrogen bonds (because it has a N or a O), it is hydrophilic and will have a negative value. If it is only constituants are C and H, it will not make hydrogen bonds and will therefore be hydrophobic, giving it a positive value on the Kyte-Doolittle scale.

  9. Thanks professor ……and IIT this lecture is very helpful to strengthen one's basics on biochemistry………

  10. i have adoubt that the disulfide linkages should be a part of secondary structure n it is a covalent bond which helps in folding please see…………………. it is also their in lecture on amino acid by dr kristina greimsin something plzzz see……… thank u mam

  11. Disulphide bridges are cardinally the part of tertiary structure. They lower the conformational entropy.actually proteins like other entities of universe are inherently inclined towards disorder(entrophy).that means it tends to unfold like everyone else towards death which is inevitable universal propensity..now these disulphides are sort of life savers which hold them intact and preclude them from attaining those unhealthy conformations.

  12. Mom, you are great,,, you used simple explanation using simple words…
    many thanks…
    keep on your teaching…
    I hope you also teach me about biophysical chemistry

  13. Her lectures are amazing!! Absolutely get everything now! I actually hope u upload more videos of her lectures about biochemistry!

  14. Wow you are really great. You should try making some videos without an accent in your speech, just to change things up a bit. Thank you so much!

  15. You have 59 minutes and 52 seconds to watch a biochemistry video on youtube, but you can't take the time to spell F-O-R. Your actions and disregard for proper spelling confuse and vex me

  16. It is your actions that are vexing,you have all the information of humanity before you, and you take time away from pursuing knowledge to nit pick trivialities…
    Are you really dim-witted enough to not understand the reason his post was written is that style?

  17. Thank you god bless you , really so clearly and so useful lecture , you make the chemistry seems easy i wish all teachers like you but there aren't any one like you ,i hope to you all the health & success .
    Is there any biology lecture
    or playlist for it ?

    great work
    don't stop 

    thanks
    thanks
    thanks
    thanks
    thanks
    thanks
    thanks
    thanks
    that's not enough
    thanks
    thanks
    thanks
    thanks
    thanks
    thanks
    thanks
    thanks
    to tomorrow ^_^

  18. Great lecture about protein. I wanted to revise protein biochemistry knowledge. I took biochemistry years back and now wanted to review.

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