Identification of an interacting coat-external scaffolding protein domain required for both the initiation of phiX174 procapsid morphogenesis and the completion of DNA packaging.

Abstract excerpt

The phiX174 external scaffolding protein D mediates the assembly of coat protein pentamers into procapsids. There are four external scaffolding subunits per coat protein. Organized as pairs of asymmetric dimers, the arrangement is unrelated to quasi-equivalence. The external scaffolding protein contains seven alpha-helices. The protein's core, alpha-helices 2 to 6, mediates the vast majority of intra- and...

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