Which of the following statements best describes a signal peptide? A.A signal peptide is a short amino acid sequence present at the N-terminus of the majority of newly translated proteins destined for the endomembrane system. B.A signal peptide is a long amino acid sequence that is present at the C-terminus of a protein destined for the localization in lumen of the mitochondrial. C.A signal peptide is a glycan that is post-translational added to a protein to target that protein to the proteosome for degradation. D.A signal peptide is a postranslational modification that adds a lipid to a protein to help anchor the protein to a cellular membrane.
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.
Which of the following statements best describes a signal peptide?
A.A signal peptide is a short amino acid sequence present at the N-terminus of the majority of newly translated proteins destined for the endomembrane system.
B.A signal peptide is a long amino acid sequence that is present at the C-terminus of a protein destined for the localization in lumen of the mitochondrial.
C.A signal peptide is a glycan that is post-translational added to a protein to target that protein to the proteosome for degradation.
D.A signal peptide is a postranslational modification that adds a lipid to a protein to help anchor the protein to a cellular membrane.
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