Nucleic Acids and the Genetic Material Problem Set 1
Problem 12: mRNA and protein coding
Under conditions where methionine must be the first amino acid, what protein would be coded
for by the following mRNA?
5'-CCUCAUAUGCGCCAUUAUAAGUGACACACA-3'
A.
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pro his met arg his tyr lys cys his thr
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B.
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met arg his tyr lys cys his thr
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C.
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met arg his tyr lys
Initiation starts with the methionine codon, 5'-AUG. Reading in groups of three gives CGC for arginine, CAU for histidine, UAU for tyrosine, AAG for lysine, and UGA a stop codon that releases the peptide.
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D.
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met pro his met arg his tyr lys cys his thr
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E.
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arg his ser glu tyr tyr arg leu tyr ser
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Sunday, September 29, 1996
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