Question

To which organelle does a C-terminal signal peptide sequence of the four amino acids KDELdirect peptides?

A.Endoplasmic reticulum
B.Nucleus
C.Lysosomes
D.Peroxisomes
E.Mitochondria

Answer 1

Endoplasmic reticulum.

Step-by-step explanation:

Protein synthesis, sorting and transport is the important mechanism for the synthesis of protein in the body and the transport of the protein to its specific site or organ. The protein must reaches to its final destination for its proper functioning.

KDEL ( K- leucine, D is aspartic acid, E is glutamic acid and L is lysine ) is the stretch of a specific amino acid that are responsible for the protein molecule to target at its specific site. KDEL is specific for the transport of peptides to the endoplasmic reticulum.

Thus, the correct answer is option (A).