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Gap junctions

Gap junctions

connections between cells which allow passage of small molecules and electric current. Gap junctions were first described anatomically as regions of close apposition between cells with a narrow (1-2 nm) gap between cell membranes. The variety in the properties of gap junctions is reflected in the number of connexins, the family of proteins which form the junctions.


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plasmodesm and gap junction

Both of plasmodesm (in plant cells) and gap juction (in animal cells) pass the micromolecules & ions and connect the ... Why do all plant cells have plasmodesmata but only some animal cells have gap junctions?

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by mnatashgaran
Sun Mar 31, 2013 7:42 pm
 
Forum: Cell Biology
Topic: plasmodesm and gap junction
Replies: 1
Views: 1839

Re: connexins & pannexins

... summarize what is known about the properties of the three families of gap junction proteins, connexins, innexins and pannexins, emphasizing their ... pathway. We discuss that two distinct groups of proteins form gap junctions in deuterostomes (connexins) and protostomes (innexins), and that ...

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by brad000123
Sat Oct 20, 2012 11:54 am
 
Forum: Molecular Biology
Topic: connexins & pannexins
Replies: 6
Views: 5765

Propagation of Action Potential

The action potential propagates from one myocyte to another through gap junctions. The electric currents produced by the exchange of ions through the cell membrane ...

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by TATAbox
Mon Jul 25, 2011 6:23 pm
 
Forum: Human Biology
Topic: Propagation of Action Potential
Replies: 6
Views: 4762

Re: 5 questions about cell biology

1.Which cell junctions doesn't have cytoskeleton filament? A.Gap junction B.Tight junction I think this is gap junction but the answer said it is tight junction 2.Destruction ...

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by ATPenergy
Sat Feb 20, 2010 2:14 am
 
Forum: Cell Biology
Topic: 5 questions about cell biology
Replies: 6
Views: 5222

5 questions about cell biology

1.Which cell junctions doesn't have cytoskeleton filament? A.Gap junction B.Tight junction 2.Destruction of stress fiber is most adversly effect? A.Cell division B.Cell contraction ...

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by ATPenergy
Fri Feb 19, 2010 4:19 am
 
Forum: Cell Biology
Topic: 5 questions about cell biology
Replies: 6
Views: 5222
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