Complement C9 is inserted into membranes in a globular conformation
- 30 January 1989
- journal article
- Published by Wiley in FEBS Letters
- Vol. 243 (2) , 347-350
- https://doi.org/10.1016/0014-5793(89)80159-0
Abstract
Complement component C9 undergoes a major conformational change during its insertion into a biological membrane from a globular to an extended form. At 0°C a single C9 binds but a membrane attack complex (MAC) is not formed. We show that the C9 bound at 0°C is accessible to the intracellular space and sensitive to trypsin digestion, suggesting that C9 inserts in its globular state and requires an elevated temperature in order to change conformation. Complement; C9; Membrane assembly; CytotoxicityKeywords
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