Proteins of Norwalk virus

Abstract
The proteins of the Norwalk virus were studied by polyacrylamide gel electrophoresis. Highly purified specifically immunoprecipitated virions appeared to contain a single primary structural protein with a MW of 59,000. A soluble Norwalk viral protein with a MW of 30,000 was identified in (human) fecal specimens containing Norwalk virus. The protein structure of the virion is similar to that of the Caliciviridae family.