this resource has been updated - find the current version here: https://qubeshub.org/qubesresources/publications/813

did you ever need to look up a number : ; like the volume of a cell or the cellular concentration of atp, only to find yourself spending much more time than you wanted on the internet or flipping through textbooks - all without much success?

Well, it didn't happen only to you  It is often surprising how difficult it can be to find concrete biological numbers, even for properties that have ben measured numerous times.  To help solve this for one and all, BioNumbers (the database of key numbers in biology) was created.  Along with the numbers, you'll find the relevant references to the original literature, useful comments, and related numbers.

Researchers should cite this work as follows:

• Milo et al.  Nucl. Acids Res. (2010) 38: D750-D753 (link)

1. Resources @ BioNumbers
2. Resources @ QUBES - Data