gap junction


gap junction
A junction between two cells consisting of many pores that allow the passage of molecules up to about 900 D. Each pore is formed by an hexagonal array (connexon) of six transmembrane proteins (connexins) in each plasma membrane: when mated together the pores open, allowing communication and the interchange of metabolites between cells. Electrical synapses are gap junctions, and metabolic cooperation depends upon the formation of gap junctions.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • Gap junction — Gap Junctions Gap Junctions, Zell Zell Kanäle, (lat. Nexus) sind kanalbildende Proteinkomplexe, welche die zytoplasmatischen Kompartimente benachbarter Zellen direkt miteinander verbinden und die Membrane der Zellen in einem bestimmten Abstand… …   Deutsch Wikipedia

  • gap junction — n an area of contact between adjacent cells characterized by modification of the plasma membranes for intercellular communication or transfer of low molecular weight substances gap junc·tion·al gap .jəŋk shən əl, shnəl adj * * * a type of… …   Medical dictionary

  • Gap junction — A gap junction or nexus is a specialized intercellular connection between certain animal cell types. It directly connects the cytoplasm of two cells, which allows various molecules and ions to pass freely between cells.One gap junction is… …   Wikipedia

  • Gap Junction — Übergeordnet Zell Zell Kontakt Untergeordnet Connexon Pannexon …   Deutsch Wikipedia

  • gap junction — noun : an area of contact between adjacent cells characterized by modification of the plasma membranes for intercellular communication or transfer of low molecular weight substances • gap junctional ¦ ̷ ̷ ¦ ̷ ̷  ̷ ̷  ̷ ̷ adjective * * * Cell Biol …   Useful english dictionary

  • gap junction — gap′ junc tion n. cbl Biol. a structure consisting of a series of channels extending across the gap between two cells, allowing the passage of ions, small molecules, etc …   From formal English to slang

  • gap junction — Cell Biol. a linkage of two adjacent cells consisting of a system of channels extending across a gap from one cell to the other, allowing the passage of ions and small molecules. * * * …   Universalium

  • gap junction — noun Date: 1967 an area of contact between adjacent cells characterized by modification of the plasma membranes for intercellular communication or transfer of low molecular weight substances …   New Collegiate Dictionary

  • Gap junction protein, alpha 1 — Gap junction protein, alpha 1, 43kDa PDB rendering based on 1r5s …   Wikipedia

  • Gap junction protein — Gap junction protein, beta 6, also known as GJB6, is a human gene.cite web | title = Entrez Gene: GJB6 gap junction protein, beta 6| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene Cmd=ShowDetailView TermToSearch=10804| accessdate = ] PBB… …   Wikipedia


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