tertiary structure of protien

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tertiary structure of protien

Post by aqudsi » Wed Oct 21, 2009 7:40 pm

first of all i would like to apologize if this is the incorrect place for this post
second of all this is a great website you rock

my question is regarding the tertiary structure of a protien i dont understand exaxtly what its composed of, im studying from the campbel reece book and i find the details a bit confusing.
what exactly are the components of the tertiary structure if im not mistaken i beileve it has one polypeptide chain and an alpha helix but does it or does it not contain a pleated sheet structure??? :?: :?: :?:
thnx in advance

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Post by JackBean » Thu Oct 22, 2009 8:50 am

The tertiary structure is 3D structure of one polypeptide chain. Whether it has helix or sheet, that depends on the concrete protein ;) But most of them have a little of both ;)

Cis or trans? That's what matters.

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Post by CellSpecific » Mon Oct 26, 2009 4:15 pm

Perhaps one way to explain this is that a Tertiary structure arises/occurs when two or more secondary structures (helix or sheet) are present in one polypeptide chain.

Jay Dela Cruz, Ph.D.


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