How many protein subunits would be present in a complex icosahedral virus particle with atriangulation (T) number of 8?

Answered: How many protein subunits would be…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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How many protein subunits would be present in a complex icosahedral virus particle with a
triangulation (T) number of 8?

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The icosahedral symmetry in viruses are extremely common. The icosahedron consists of 20 triangular faces with 12 vertices. This symmetry allows the formation of a closed shell with the smallest number of identical subunits required are 60. The triangulation number is the number of facets present per triangular face of icosahedron. Each facet contains a capsid protein multimer. By combining several triangular facets, an assembly of larger face from same structural unit can be formed.

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