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To be able to read the literature and interpret protein sequence data, you should be very familiar with the one- and three- letter amino acid abbreviations, as well as their structures. This question tests your knowledge of the one-letter abbreviations.

Identify ALL of the following which correctly identify the amino acids corresponding to the given one-letter abbreviations.

Select ALL that apply.


GSFMHNR = glycine, serine, phenylalanine, methionine, histidine, asparagine, arginine.


APWQDGH = alanine, phenylalanine, threonine, glutamine, aspartic acid, glutamic acid, histidine.


APWQDGH = asparagine, proline, threonine, glutamine, aspartic acid, glycine, histidine.


KVEYCLP = tryptophan, valine, glutamic acid, threonine, cysteine, leucine, proline.


PLMCKYR = proline, leucine, methionine, cysteine, lysine, tyrosine, arginine.


CDEFGHI = cysteine, glutamic acid, aspartic acid, phenylalanine, glycine, histidine, isoleucine.

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