Multiple choice

The unit structure of gap junctions is named as connexin. What is not true about it?

  1. An aspect of connexins is that they have a relatively short half life of only a few hours.

  2. Connexins are also called as gap junctions.

  3. Connexins contain only single termini.

  4. The connexin gene family is diverse, with twenty-one identified members in the sequenced human genome.

  5. It is in the ER that connexins are properly folded, yielding two extracellular loops.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Connexins are four-pass transmembrane proteins with both C and N cytoplasmic termini.