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This illustration provides a 3-dimensional (3D) graphical representation of a tightly packed icosahedral poliovirus particle that consists of 60 copies each of capsid polypeptides designated as VP (viral protein) 1 (Pink), VP2 (Green), VP3(Purple) and VP4 (not shown). The particle is composed of units of four capsid polypeptides that interact in groups of five, resulting in a viral particle that has 5-fold (pentamer) and 12-fold symmetry. A deep “canyon” on the capsid surface surrounds the apex of each pentamer of the virus. The canyon together with the pentamer apex are used as the site for capsid binding to cellular receptors.
High Resolution: Click here for hi-resolution image (6.52 MB)
Content Providers(s):CDC/ Sarah Poser
Creation Date:2014
Photo Credit:Meredith Boyter Newlove, M.S.
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.