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A structure lying external to one or more cells, which provides structural support for cells or tissues; may be completely external to the cell (as in animals) or be part of the cell (as in plants). A layer of the basal lamina that contains collagen fibrils and connects the basal lamina to the underlying connective tissue. A large, extracellular glycoprotein complex composed of three different polypeptide chains, alpha, beta and gamma. Provides an integral part of the structural scaffolding of basement membranes. The electron-lucent layer of the basal lamina adjacent to the basal plasma membrane of the cells that rest on the lamina. The electron-dense layer of the basal lamina; lies just below the lamina lucida. A layer consisting mainly of proteins (especially collagen) and glycosaminoglycans (mostly as proteoglycans) that forms a sheet underlying or overlying cells such as endothelial and epithelial cells. The proteins are secreted by cells in the vicinity. An example of this component is found in Mus musculus. A thin sheet of proteoglycans and glycoproteins, especially laminin, secreted by cells as an extracellular matrix. Any constituent part of the extracellular matrix, the structure lying external to one or more cells, which provides structural support for cells or tissues; may be completely external to the cell (as in animals) or be part of the cell (as often seen in plants). A thin layer of dense material found in various animal tissues interposed between the cells and the adjacent connective tissue. It consists of the basal lamina plus an associated layer of reticulin fibers. Any constituent part of the extracellular region, the space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers constituent parts of the host cell environment outside an intracellular parasite.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: basal lamina
Acc: GO:0005605
Aspect: Cellular Component
Desc: A thin sheet of proteoglycans and glycoproteins, especially laminin, secreted by cells as an extracellular matrix.
Synonyms:
  • basement lamina
Proteins in PDR annotated with:
   This term: 36 [Search]
   Term or descendants: 54 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0005605 - basal lamina (interactive image map)
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