Giant proteins in a giant cell: Molecular basis of ultrafast Ca2+-dependent cell contraction

"The evidence suggests that the GSBP-spasmin protein complex is the functional unit of the mesh-like contractile fibrillar system, which, coupled with various other subcellular structures, provides the mechanism for repetitive ultrafast cell contraction and extension."

https://www.science.org/doi/10.1126/sciadv.add6550

#protists