User Tools

    To create and edit articles, please register and log-in

Main Menu : categories & index etc.

Main menu
Click categories to expand


A-Z listingplugin-autotooltip__plain plugin-autotooltip_bigA-Z listing

This is an alphabetical index of all content pages.


Other categories

Utilities

Contact
Register
Sandbox

Also see

Importance Ratings
News
Legal
Donate/Sponsor
Curator's rationale
AI Policy



Twitter feed š¯•¸



Feeds + s.e.o. etc.
rss / xml feed
sitemap file
A-Z listing (archived)


Indexed under : Life Sciences / Life Itself

Wikenigma - an Encyclopedia of Unknowns Wikenigma - an Encyclopedia of the Unknown

Cellular vaults

Vaults are microscopic structures found in nearly all cells which have a nucleus. They were first seen in 1986 using electron microscope 'negative staining' techniques.(ref.)

They are highly regular in structure, made of specialsed proteins, and with a strict 36-fold symmetry (Illustration here) The hollow barrel-like structures typically have a length of approximately 70 nm and a diameter of 40 nm.

They have so far been found in the cells of mammals, birds, fish, plants, nematodes, yeasts, bacteria etc. etc.. Many cells have have a vault count of over 10,000.

Their function is not presently known.

Given their prevalence, it's assumed that they could have some critical cellular function(s) - possibly involving intra-cellular transport processes.- which go far back in evolutionary time.

Further technical details :Structure of the vault, a ubiquitous cellular component Structure, Vol.7(4), p.371-379


Vaults are one example of the large number of cellular 'organelles' which have yet-to-be-identified functions. See : Cellular organellesplugin-autotooltip__plain plugin-autotooltip_bigCellular organelles

Eukaryotic cells are cells which have a nucleus. Within that nucleus are various discrete structures with very specific functions that are, as a group, called 'organelles'.

In the 1970s a book by professor Lynn Margulis (titled Origin of Eukaryoticā€¦


    Please share this page to help promote Wikenigma !

Dear reader : Do you have any suggestions for the site's content?

Ideas for new topics, and suggested additions / corrections for older ones, are always welcome.

If you have skills or interests in a particular field, and have suggestions for Wikenigma, get in touch !


Or, if you'd like to become a regular contributor . . . request a login password. Registered users can edit the entire content of the site, and also create new pages.

( The 'Notes for contributors' section in the main menu has further information and guidelines etc.)

Automatic Translation

You are currently viewing an auto-translated version of Wikenigma

Please be aware that no automatic translation engines are 100% accurate, and so the auto-translated content will very probably feature errors and omissions.

Nevertheless, Wikenigma hopes that the translated content will help to attract a wider global audience.

Show another (random) article

Further resources :

DOKUWIKI IMPLEMENTATION DESIGN BY UNIV.ORG.UK DECEMBER 2023