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ProteinQ3392203· pop 9· linked from 340 articles

Also known as Plectin-1, hemidesmosomal protein 1, PLEC, plectin 1, intermediate filament binding protein 500kDa, HD1

Plectin is a giant protein found in nearly all mammalian cells which acts as a link between the three main components of the cytoskeleton: actin microfilaments, microtubules and intermediate filaments. In addition, plectin links the cytoskeleton to junctions found in the plasma membrane that structurally connect different cells. By holding these different networks together, plectin plays an important role in maintaining the mechanical integrity and viscoelastic properties of tissues.

Protein · UniProt

Plectin

Gene
PLEC
Organism
Homo sapiens (Human)
Length
4,684 aa
Molecular mass
531,791 Da
Evidence
1: Evidence at protein level

Interlinks intermediate filaments with microtubules and microfilaments and anchors intermediate filaments to desmosomes or hemidesmosomes. Could also bind muscle proteins such as actin to membrane complexes in muscle. May be involved not only in the filaments network, but also in the regulation of their dynamics. Structural component of muscle. Isoform 9 plays a major role in the maintenance of myofiber integrity

3D-structureAcetylationActin-bindingAlternative splicingCell junctionCell projectionCoiled coilCytoplasm
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~4 min read

Article

7 sections
Contents
  • Structure
  • Function
  • Clinical significance
  • See also
  • References
  • Further reading
  • External links

Plectin is a giant protein found in nearly all mammalian cells which acts as a link between the three main components of the cytoskeleton: actin microfilaments, microtubules and intermediate filaments. In addition, plectin links the cytoskeleton to junctions found in the plasma membrane that structurally connect different cells. By holding these different networks together, plectin plays an important role in maintaining the mechanical integrity and viscoelastic properties of tissues.

== Structure ==

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