Functional consequences of disulfide bond formation in gelsolin.
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Allen PG
Functional consequences of disulfide bond formation in gelsolin.
FEBS Lett. 1997 Jan 13;401(1):89-94.
- PubMed ID
- 9003812 [ View in PubMed]
- Abstract
Gelsolin is an actin monomer binding and filament severing protein synthesized in plasma and cytoplasmic forms differing by an N-terminal amino acid extension and a disulfide bond between Cys-188 and Cys-201. To determine whether this bond altered gelsolin regulation or function, oxidized and reduced plasma gelsolins were assayed for severing, monomer binding and nucleation activity at a variety of rate-limiting calcium concentrations. The results indicate that the disulfide bond in domain 2 of gelsolin influences the transmission of information from C-terminal regulatory sites to functional sites in the N-terminus.