Multiprotein complex that forms a point of contact or adhesion in animal cells
Cell junction
Tight junction between two cells
Details
Identifiers
Latin
junctiones cellulares
TH
H1.00.01.0.00012
FMA
67394
Anatomical terminology
[edit on Wikidata]
Cell junctions[1] or junctional complexes are a class of cellular structures consisting of multiprotein complexes that provide contact or adhesion between neighboring cells or between a cell and the extracellular matrix in animals.[2] They also maintain the paracellular barrier of epithelia and control paracellular transport. Cell junctions are especially abundant in epithelial tissues. Combined with cell adhesion molecules and extracellular matrix, cell junctions help hold animal cells together.
Cell junctions are also especially important in enabling communication between neighboring cells via specialized protein complexes called communicating (gap) junctions. Cell junctions are also important in reducing stress placed upon cells.
In plants, similar communication channels are known as plasmodesmata, and in fungi they are called septal pores.[3]
^Mitchell, Richard Sheppard; Kumar, Vinay; Abbas, Abul K.; Fausto, Nelson (2007). "Ch. 13: Box on morphology of squamous cell carcinoma". Robbins Basic Pathology (8th ed.). Philadelphia: Saunders. ISBN 978-1-4160-2973-1.
^Fu, Rong; Jiang, Xiaowan; Li, Gang; Zhu, Yi; Zhang, Huimin (December 2022). "Junctional complexes in epithelial cells: sentinels for extracellular insults and intracellular homeostasis". The FEBS Journal. 289 (23): 7314–7333. doi:10.1111/febs.16174. PMID 34453866. S2CID 237347708. Retrieved 23 January 2023.
^Bloemendal, S; Kück, U (January 2013). "Cell-to-cell communication in plants, animals, and fungi: a comparative review". Die Naturwissenschaften. 100 (1): 3–19. Bibcode:2013NW....100....3B. doi:10.1007/s00114-012-0988-z. PMID 23128987. S2CID 11991859.
Celljunctions or junctional complexes are a class of cellular structures consisting of multiprotein complexes that provide contact or adhesion between...
Gap junctions are one of three broad categories of intercellular connections that form between several animal cell types. They were first imaged using...
either through direct contact between cell surfaces such as celljunctions or indirect interaction, where cells attach to surrounding extracellular matrix...
In cell biology, adherens junctions (or zonula adherens, intermediate junction, or "belt desmosome") are protein complexes that occur at cell–cell junctions...
common single-junction silicon solar cell can produce a maximum open-circuit voltage of approximately 0.5 to 0.6 volts. Photovoltaic cells may operate under...
surface of intercellular tight junctions. The encoded protein may be involved in signal transduction at cell–celljunctions. Two transcript variants encoding...
of celljunction which can be identified at the ultrastructural level: Gap junctions Desmosomes Adherens junctions Tight junctions Gap junctions bring...
In a basic Schottky-junction (Schottky-barrier) solar cell, an interface between a metal and a semiconductor provides the band bending necessary for charge...
Epidermal cells are tightly interconnected to serve as a tight barrier against the exterior environment. The junctions between the epidermal cells are of...
membrane of each epithelial cell. Adherens junctions (zonula adherens) connect bundles of actin filaments from cell to cell to form a continuous adhesion...
game), 1990 Junction Theatre Company, in South Australia (1984–2002) Junction system, a feature of video game Final Fantasy VIII Celljunction, a class of...
neuromuscular junction presynaptic motor axons terminate 30 nanometers from the cell membrane or sarcolemma of a muscle fiber. The sarcolemma at the junction has...
the epithelial cells. They also play a critical role maintaining the structure and permeability of endothelial cells. Tight junctions may also serve as...
silicon-based tandem cells, to 29.8%, exceeding the maximum efficiency achieved in single-junction silicon solar cells. Perovskite solar cells have therefore...
electrochemical cell is a device that generates electrical energy from chemical reactions. Electrical energy can also be applied to these cells to cause chemical...
cellulose for the cell wall in plants or collagen in animals. When the membranes of two cells are close they may form special types of celljunction which come...
C-terminus of proteins, to form tight junctions in both epithelial and endothelial cells as polarity is gained in the cell. JAMs are usually around 40 kDa in...
was first identified in epithelial cells as a 65 kDa integral plasma-membrane protein localized at the tight junctions. Together with Claudins, and zonula...
invadopodia, focal adhesion, and different types of celljunctions. These structures are usually responsible for cell adhesion, communication, endocytosis and exocytosis...
A muscle cell, also known as a myocyte, is a mature contractile cell in the muscle of an animal. In humans and other vertebrates there are three types:...
Global Information