Valine (Val)
The 3-letter code for the amino acid asparagine is Asn.
The 3-letter code for the amino acid serine is Ser.
The single-letter code for the amino acid tryptophan is "W."
The three-letter code for the amino acid alanine is Ala.
The three-letter code for the amino acid arginine is Arg.
No, the change from GUA to GUU will not affect the resulting protein because both codons code for the amino acid Valine. This is an example of redundancy in the genetic code, where different codons can code for the same amino acid.
If the mutant codon still codes for the same amino acid (a silent mutation). For example: GUU, GUC, GUA and GUG all code for the amino acid Valine. So if the mutation changed the codon from GUU to GUA - Valine would still be produced and therefore the polypeptide will be identical.
GUU, GUC, GUA, GUG
The amino acid code for tryptophan is "Trp."
The amino acid code for the mRNA codon GAG corresponds to the amino acid Glutamic acid (Glu). In the genetic code, GAG is one of the codons that specifies this particular amino acid.
GUC
From a nucleic acid code to an amino acid code
One codon specifies a specific amino acid. However, more than one codon can code for the same amino acid. For example, the codon GUU codes for the specific amino acid valine; and the codons GUC, GUA, and GUG also code for valine.
The 3-letter code for the amino acid asparagine is Asn.
The 3-letter code for the amino acid serine is Ser.
The single-letter code for the amino acid tryptophan is "W."
The three-letter code for the amino acid alanine is Ala.