Consider the following DNA mRNA sequence: 5’-ACTGATCCATGCCAGGGGTTTTCAACTAAAATGAAA-3’ a) What is the template sequence this mRNA was transcribed from? Include 5’ and 3’ labels. b) Based on this sequence, what you predict would be the resulting peptide sequence from it. c) In examining this sequence what is the proper reading frame of the open reading frame? (+1, +2, +3, -1, -2, or -3). d) What would you predict the peptide sequence to be if there was the following mutation that led to a base change: 5’-ACTGATGCATGCCAGGGGTTTTCAACTAAAATGAAA-3’
Proteins
We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.
Protein Expression
The method by which living organisms synthesize proteins and further modify and regulate them is called protein expression. Protein expression plays a significant role in several types of research and is highly utilized in molecular biology, biochemistry, and protein research laboratories.
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