CryoEM reveals BIN1 (isoform 8) does not bind to single actinfilaments in vitro

• Cells change their appearance by a concerted action of the cytoskeleton and the plasma membrane. The machinery thatbends the membrane includes Bin/Amphiphysin/Rvs (BAR) domain proteins. Recently BAR domain proteins garneredattention as actin regulators, either by recruiting actin regulating proteins or through binding to actin directly. BIN1 (animportant protein in Alzheimer’s Disease, heart disease and cancer) is one of the few BAR proteins that bind to actindirectly. Here, we imaged a complex of BIN1 and actin with cryoEM. Our results reveal that BIN1 cannot be found onsingle actin filaments.

Nyckelord

BIN1

actin

CryoEM

Bioteknologi

Biotechnology

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