This is an image of leukemia inhibitory factor (LIF). I accessed the data from the Protein Data Bank data (PDB: 1LKI) and rendered it in Pymol.

The PDB page states that it is the house mouse (Mus musculus) protein.

For the original data, please see: Robinson, R.C., Grey, L.M., Staunton, D., Vankelecom, H., Vernallis, A.B., Moreau, J.F., Stuart, D.I., Heath, J.K., Jones, E.Y. The crystal structure and biological function of leukemia inhibitory factor: implications for receptor binding. Cell v77 pp.1101-1116, 1994.

描述LIF Crystal Structure.rsh.png	Crystal structure of Leukemia Inhibitory Factor from mouse as published in the Protein Data Bank (PDB: 1LKI)
日期	2007年2月14日
来源	Created from PDB 1LKI and rendered by me using Pymol
作者	Ramin Herati
授权 (二次使用本文件)	Public domainPublic domainfalsefalse 我，本作品著作权人，释出本作品至公有领域。这适用于全世界。 在一些国家这可能不合法；如果是这样的话，那么： 我无条件地授予任何人以任何目的使用本作品的权利，除非这些条件是法律规定所必需的。