Art:Dodecapod

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Revision as of 04:36, 17 May 2022

Tailed bacteriophages and herpesviruses have a DNA "pipe" in their capsids, called a portal protein^[1]. The images here depict 7sya, a homo-dodecamer^[1]. In the animation at right, each of the 12 protein chains is colored amino to carboxy spectrum (N->C Rainbow):

N

C

All images and the animation were generated with FirstGlance in Jmol (version 4.0, not yet released in mid-May 2022), most using color schemes available under Solid (Views tab). The two faces of the oblate structure (or tube with a flange) are designated the N-face (face with amino termini) and the C-face (face with carboxy termini).

Distance from center, C-face	12 sequence-identical chains, C-face
2° structure, N-face	2° structure, C-face
Chains are distinct colors, N-face	Chains are distinct colors, C-face
Distance from center, N-face	Distance from center, C-face

References & Notes

1. ↑ ^{1.0 1.1} David Hou CF, Swanson NA, Li F, Yang R, Lokareddy RK, Cingolani G. Cryo-EM Structure of a Kinetically Trapped Dodecameric Portal Protein from the Pseudomonas-phage PaP3. J Mol Biol. 2022 Mar 9;434(9):167537. doi: 10.1016/j.jmb.2022.167537. PMID:35278476 doi:http://dx.doi.org/10.1016/j.jmb.2022.167537