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• #5736
Ally1788
Participant

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??

• #55002
canalon
Participant

Calculate the number of each AA, and multiply by their molecular weight. Hard, I think I sparained a neurone here…

• #55016
victor
Participant

I think I’ll call it hard if the question is asking you to sequence that x protein….:wink:

• #55029
baikuza
Participant

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??
ðŸ™„ ðŸ™„ ðŸ™„

• #55053
zami’87.
Participant
quote Ally1788:

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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