The FG-nucleoporins contain multiple repeats of short hydrophobic sequences rich in
Question and options
The FG-nucleoporins contain multiple repeats of short hydrophobic sequences rich in
- Phenylalanine and glycine
- Tryptophan and histidine
- Phenylalanine and glutamine
- Proline and serine
Answer and explanation
Correct answer: A - Phenylalanine and glycine
FG-nucleoporins contain repeats rich in phenylalanine (F) and glycine (G), forming the permeability barrier of the nuclear pore. Tryptophan, histidine, glutamine or proline-serine repeats are not what defines these nucleoporins; the very name "FG" refers to the phenylalanine-glycine motif.
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