Protein x

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Ally1788
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Protein x

Post by Ally1788 » Mon Sep 18, 2006 3:43 pm

You are given a solution of protein "x". Protein x consists of 240 amino acid residues. 38% are valine, 24% are alanine, 20% are glycine, and 18% are isoleucine.
What is the molecular wieght of protein x?
whats the best way to solve this??

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canalon
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Post by canalon » Mon Sep 18, 2006 7:36 pm

Calculate the number of each AA, and multiply by their molecular weight. Hard, I think I sparained a neurone here...
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victor
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Post by victor » Tue Sep 19, 2006 5:33 am

I think I'll call it hard if the question is asking you to sequence that x protein....:wink:
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baikuza
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Post by baikuza » Tue Sep 19, 2006 10:59 am

hei, just sum all the MR of those amino acids...
... after you know the MR each of the amino acid and....
hmm...
you know the answer, do not you??
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zami'87.
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Re: Protein x

Post by zami'87. » Tue Sep 19, 2006 7:50 pm

Ally1788 wrote:You are given a solution of protein "x". Protein x consists of 240 amino acid residues. 38% are valine, 24% are alanine, 20% are glycine, and 18% are isoleucine.
What is the molecular wieght of protein x?
whats the best way to solve this??


U need Mr for each amino acid...eg. 240 is 100% and Mr(val) is 38% then u find amount of val....same for others ..after all that u make a sum but keep on mind that u must subtract water molecules that are lost in making polypeptide chain
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