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Substrate adhesion molecules

Summary

Substrate adhesion molecules (SAMs) are proteins that attach cells to specific compounds in the extracellular matrix (a process known as cell adhesion).[1]

Some of the amino acids in the SAM bind to components of the extracellular matrix, while others bind to integrins on the surface of the cell. Integrin molecules are composed of two chains of amino acids, one of which is connected to the actin filaments in the cytoskeleton, while the other is connected to the SAMs. This enables external activity in the extracellular matrix to affect the shape and movement of the cell.[2]

SAMs do not have to be made by the cells that bind to them. They can also link to other SAMs, influencing each other's behavior.[3]

There is very strong evidence SAMs also have a key role in neuronal morphogenesis.[4]

See also edit

References edit

  1. ^ Schwab, Manfred, ed. (2001). "Cell Adhesion Molecules". Encyclopedic reference of cancer, Volume 1. Springer. p. 183. ISBN 978-3-540-66527-4.
  2. ^ Barry, John Michael (2002). Molecular embryology: how molecules give birth to animals. Taylor & Francis. p. 30. ISBN 978-1-56032-936-7.
  3. ^ Cruse, Julius M. & Lewis, Robert Edwin (2004). Atlas of immunology. CRC Press. p. 29. ISBN 978-0-8493-1567-1.
  4. ^ Kollins, Katherine M.; Davenport, Roger W. (2006). "Branching morphogenesis in vertebrate neurons". In Davies, Jamie A. (ed.). Branching morphogenesis. Birkhäuser. p. 24. ISBN 978-0-387-25615-3.

Further reading edit

  • Ulrich, Klaus (1994). "Cell-Adhesion Molecules of Vertebrates". Comparative animal biochemistry. Springer. ISBN 978-3-540-57420-0.
  • Haschek, Wanda M.; et al. (2009). Fundamentals of Toxicologic Pathology (2nd ed.). Academic Press. p. 635. ISBN 978-0-12-370469-6.