connexon

Physiology

(noun)

Related Terms

  • cytoplasm
  • nexus
  • connexin
  • intercellular
  • synapse
Biology

(noun)

An assembly of six connexins forming a bridge called a gap junction between the cytoplasms of two adjacent cells.

Related Terms

  • plasmodesma
  • occludin

Examples of connexon in the following topics:

  • Gap Junctions

    • Each of these half channels is called a connexon. 
    • Each connexon is made up of six symmetrical integral membrane protein units called connexins. 
    • The cytoplasmic end of each connexon can also be closed, if necessary.
  • Intercellular Junctions

    • Gap junctions develop when a set of six proteins (called connexins) in the plasma membrane arrange themselves in an elongated doughnut-like configuration called a connexon.
    • When the pores ("doughnut holes") of connexons in adjacent animal cells align, a channel between the two cells forms.
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