File:Protein Composite.jpg

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Description	Molecular surface of several proteins showing their comparitive sizes. From left to right are: Immunoglobulin (IgG), Hemoglobin, Insulin, Adenylate Kinase, Glutamine Synthetase.
Date
Source	As rendered by Grasp (Anthony Nicholls, Kim Sharp and Barry Honig, PROTEINS, Structure, Function and Genetics, Vol. 11, No. 4, 1991, pg. 281ff). Structures are from the Protein Data Bank.
Author	en:User:Gareth White

This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.

You are free:

to share – to copy, distribute and transmit the work
to remix – to adapt the work

Under the following conditions:

attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.

CC-BY-SA-2.0 truetrue

A background to Schools Wikipedia

Schools Wikipedia has made the best of Wikipedia available to students. SOS Children's Villages believes that a decent childhood is essential to a happy, healthy. Our community work brings families new opportunities through education, healthcare and all manner of support. There are many ways to help with SOS Children.