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Cited by 299

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

The Crystal Structure of a Five-Stranded Coiled Coil in COMP: A Prototype Ion Channel?

Malashkevich, Vladimir N., Kammerer, Richard A., Efimov, Vladimir P., Schulthess, Therese, Engel, Jürgen·1996·Science

Abstract

Oligomerization by the formation of α-helical bundles is common in many proteins. The crystal structure of a parallel pentameric coiled coil, constituting the oligomerization domain in the cartilage oligomeric matrix protein (COMP), was determined at 2.05 angstroms resolution. The same structure probably occurs in two other extracellular matrix proteins, thrombospondins 3 and 4. Complementary hydrophobic interactions and conserved disulfide bridges between the α helices result in a thermostable structure with unusual properties. The long hydrophobic axial pore is filled with water molecules but can also accommodate small apolar groups. An “ion trap” is formed inside the pore by a ring of conserved glutamines, which binds chloride and probably other monatomic anions. The oligomerization domain of COMP has marked similarities with proposed models of the pentameric transmembrane ion channels in phospholamban and the acetylcholine receptor.

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Metadata

Authors
Malashkevich, V. N., Kammerer, R. A., Efimov, V. P., Schulthess, T., & Engel, J.
Venue
Science
Published
1996-11
Volume
274
Issue
5288
Pages
761-765
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2029774675
Cited by
299
References
3
FWCI
6.31
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: The Crystal Structure of a Five-Stranded Coiled Coil in COMP: A Prototype Ion Channel? https://app.cochat.ai/papers/10.1126/science.274.5288.761
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Malashkevich, V. N., Kammerer, R. A., Efimov, V. P., Schulthess, T., & Engel, J. (1996). The Crystal Structure of a Five-Stranded Coiled Coil in COMP: A Prototype Ion Channel? Science. https://doi.org/10.1126/science.274.5288.761

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.