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BIO NMDCAT Conjugated molecules
nmdcat.online July 3, 2026

76. The molecular architecture of the selective barrier known as the nuclear pore complex is composed of proteins called nucleoporins, many of which are modified as

A. Pure non-polar lipopolysaccharides
B. O-GlcNAcylated glycoproteins
✓
C. Highly condensed nucleoprotein clusters
D. Pure unbranched structural homopolysaccharides

📝 Explanation

Many nucleoporins are modified with single O-linked N-acetylglucosamine (O-GlcNAc) residues, which are essential for pore function and transport regulation.

📖 Additional Information

  • Pure non-polar lipopolysaccharides
  • O-GlcNAcylated glycoproteins
  • Highly condensed nucleoprotein clusters
  • Pure unbranched structural homopolysaccharides

Many nucleoporins are modified with single O-linked N-acetylglucosamine (O-GlcNAc) residues, which are essential for pore function and transport regulation.

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