Talk:Capsid

Untitled

This is a good page. Thanks for the hard work!

Errors

This article has some errors as I see it. In particular, the notion that envelope proteins begin on the capsid and are relocated to the envelope during budding is unfounded and no doubt falsified by existing research. The envelope is not always cell membrane; e.g. HSV family uses inner nuclear membrane. The article mentions three major viral structure classes, but one of them is "enveloped" and the context of this article is the capsid... So I am confused by what this article was trying to convey. ManVhv 06:47, 7 June 2007 (UTC)

Well, I rewrote those bits and added some references. Hopefully it's better. ManVhv 04:21, 8 June 2007 (UTC)

Error 2

In the upper picture, CMV is presented with two molecules (drawn by two thick red lines) of DNA or RNA. However, CMV has only one dsDNA molecule present within the capsid. Hope someone corrects this. DrJankovic (talk) 18:28, 14 February 2008 (UTC)

Why capsid is not a cell?

Why capsid is not considered cell?--MathFacts (talk) 16:08, 31 March 2010 (UTC)

The short answer is that viruses are considered not be be cellular.

There are some differences between cells and capsids - capsids are normally entirely composed of protein. In some cases there may be one or two lipid membranes also. A cell is normally considered to contain a number of other 'things' (for want of a better term). These include ribosomes, RNA and other macromolecules and protein complexes. With the relatively recent discovery of a number of giant viruses this distinction is becoming more difficult to maintain.DrMicro (talk) 19:31, 15 February 2012 (UTC)

length scale

How big are those capsids?

Assessment comment

The comment(s) below were originally left at Talk:Capsid/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.

Rated "high" as high school/SAT biology content, part of virus. - tameeria 05:11, 19 February 2007 (UTC)

Last edited at 05:11, 19 February 2007 (UTC). Substituted at 10:51, 29 April 2016 (UTC)

Capsomere

I'm not a microbiologist, but it seems odd to me that Capsomere and Capsid have different lists of capsid structures. Since Capsomere seems to largely be discussing capsid structure, not the constituent parts, I think it makes sense to merge it.-Apocheir (talk) 04:17, 27 December 2017 (UTC)

T-number

I merged the two sections on T-number. If I removed anything on accident, add it back into the merged version.

The VIPERdb reference has some T numbers that don't fit into the Caspar and Klug scheme. Like 2, which you can't numerically get with the T-number formula, and some pseudo-symmetry ones with a leading "p". Does anyone know what this is? Maybe the definition of T-number has evolved since Caspar and Klug's paper. -Apocheir (talk) 20:11, 27 December 2017 (UTC)

Icosahedra

Has one indications on the origin of frequent icosahedron shapes of viruses? --UKe-CH (talk) 21:13, 5 August 2019 (UTC)

Casper-Klug theory

I was redirected to this page due to wanting to find the definition of the Casper-Klug theory, but the page does not even mention the theory. I believe this is a functional deficit, because I came to wikipedia precisely because of wanting to understand the theory, yet I am merely redirected to a page that does not even MENTION it at all ... 2A02:8388:1602:6D80:FA9F:8D5F:B40F:A65A (talk) 19:44, 2 April 2021 (UTC)