What is a KDEL motif? A The KDEL motif functions as a stop-transfer sequence in Type I membrane proteins. B The KDEL motif is a four amino acid sequence (Lysine-Aspartic acid-Glutamic acid-Leucine) that functions as an ER retention signal to keep proteins localized to the ER. C The KDEL motif is a sequence of four amino acids that targets proteins to the nucleus. D The KDEL motif is a sequence of four amino acids with positive charges that functions to bind RNA.
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.
What is a KDEL motif?
| A |
The KDEL motif functions as a stop-transfer sequence in Type I membrane proteins. |
|
| B |
The KDEL motif is a four amino acid sequence (Lysine-Aspartic acid-Glutamic acid-Leucine) that functions as an ER retention signal to keep proteins localized to the ER. |
|
| C |
The KDEL motif is a sequence of four amino acids that targets proteins to the nucleus. |
|
| D |
The KDEL motif is a sequence of four amino acids with positive charges that functions to bind RNA. |
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