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Codon Chart: U C A G U

This document contains a codon chart that shows the correspondence between mRNA codons and the amino acids they encode. It lists the 64 possible mRNA codons formed from combinations of the bases A, U, C and G in the first, second and third positions. The chart can be used to determine the amino acid for a given mRNA codon. It also provides examples of codon-anticodon-amino acid correspondences for a sample DNA sequence.

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312 views3 pages

Codon Chart: U C A G U

This document contains a codon chart that shows the correspondence between mRNA codons and the amino acids they encode. It lists the 64 possible mRNA codons formed from combinations of the bases A, U, C and G in the first, second and third positions. The chart can be used to determine the amino acid for a given mRNA codon. It also provides examples of codon-anticodon-amino acid correspondences for a sample DNA sequence.

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Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Codon Chart

These charts allow you to use an mRNA sequence and determine the proper amino acid that
corresponds to the codon. Always use the mRNA codon, it you have a DNA sequence you will have
to transcribe it into an mRNA codon first

First Base Second Base of the Codon Third Base


in the in the
Codon U C A G Codon

U Phenylalanine Serine Tyrosine Cysteine U


Phenylalanine Serine Tyrosine Cysteine C
Leucine Serine STOP tt A
Leucine Serine STOP Tryptophan G

C Leucine Proline Histidine Arginine U


Leucine Proline Histidine Arginine C
Leucine Proline Glutamine Arginine A
Leucine Proline Glutamine Arginine G

A Isoleucine Threonine Asparagine Serine U


Isoleucine Threonine Asparagine Serine C
Isoleucine Threonine Lysine Arginine A
Methionine Threonine Lysine Arginine G

G Valine Alanine Aspartic Acid Glycine U


Valine Alanine Aspartic Acid Glycine C
Valine Alanine Glutamic Glycine A
Valine Alanine Acid Glycine G
Glutamic
Acid

DNA triplet mRNA codon Amino Acid

TTC AAG Lysine

GGC CCG Proline


GUC CAG Glutamine

AAA UUU Phenylalanine

GTA CAU Histidine

TGT ACA Threonine

TAT AUA Isoleucine

TCG AGC Serine

CCA GGU Glycine

Questions:
1. What 3 codons act as termination signals?

UAA, UAG, UGA

2. What codon means start?

AUG ( Methionine )

3. List ALL of the codons for leucine.

UUA, UUG, CUU, CUC, CUA, CUG

Name ALL the codons for these amino acids:

4. Phenylalanine – UUU, UUC


5. Serine – UCU, UCC, UCA, UCG, AGU, AGC

6. Isoleucine – AUU, AUC, AUA

7. Valine – GUU, GUC, GUA, GUG

9. Glycine – GUU, GUC, GUA, GUG

10. Alanine – GCU, GCC, GCA, GCG

11. If the DNA sequence is --- AAA TAT CCG TAG CAA ATG, write the mRNA
sequence, tRNA anticodon sequence, and the six amino acids for this.

DNA: AAA TAT CCG TAG CAA ATG

mRNA: UUU AUA GGC AUC GUU UAC

Amino acids: Phenylalanine, Isoleucine, Glycine, Isoleucine, Valine, Tyrosine

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