Cell membrane and hydrophilic component of proteins

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Orpheus
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Cell membrane and hydrophilic component of proteins

Post by Orpheus » Wed Sep 15, 2010 2:13 am

At http://library.thinkquest.org/C004535/c ... ranes.html it states that "Many of the membrane-associated proteins have hydrophilic and hydrophobic regions. The hydrophilic regions are used to help anchor the protein inside of the cell membrane."

I am new to this subject (and a senior, not doing homework) but the second sentence sounds counter-intuitive to me because the interior of the lipid membrane contains the hydrophobic tails of the lipids. So why - or how could they - would "membrane-associated proteins" utilize "hydrophilic regions" to anchor themselves in a hydrophobic environment?

Orpheus
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Re: Cell membrane and hydrophilic component of proteins

Post by Orpheus » Wed Sep 15, 2010 10:14 pm

I found my answer here:

http://www.ncbi.nlm.nih.gov/bookshelf/b ... 1890#A1891

I'll refrain from cutting and pasting to honor the likely limited permissions...

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Re: Cell membrane and hydrophilic component of proteins

Post by Orpheus » Wed Sep 15, 2010 10:20 pm


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JackBean
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Post by JackBean » Sat Sep 18, 2010 8:53 pm

I would guess it's mistake and should be hydrophobic ;)
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.

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