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J Gen Virol 50 (1980), 451-454; DOI 10.1099/0022-1317-50-2-451
© 1980 Society for General Microbiology
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A Re-evaluation of the Structure of Narcissus Mosaic Virus and Polymers Made from its Protein

J. B. Bancroft1, G. J. Hills3 and J. F. Richardson2

1 Department of Plant Sciences and
2 Chemistry The University of Western Ontario, London, Ontario, Canada
3 The John Innes Institute, Norwich, Norfolk, U.K.

The structure of narcissus mosaic virus (NMV) particles and its protein polymers have been re-examined. The virus particle contains 44 coat protein subunits in five turns of its helix and has a mol. wt. of about 36 x 106. Its protein forms stacked discs or rings at pH 5 which, with time, are replaced by two-start helices with 26 subunits in three turns or nine in one.

Received 19 February 1980; accepted 19 May 1980.




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