Hello Stephen, Of course it depends on what proteins you want. You can buy some easily crystallizable proteins from Hampton Research. Some purified proteins (proteases, lysozyme, calmodulin, etc) can be purchased from Sigma. Or are you looking for custom expression and purification?
ho ConfometRx Date: Mon, 25 Jan 2010 18:49:14 +0800 From: "Dr. STEPHEN SIN-YIN, CHUI" <chui...@hkucc.hku.hk> Subject: Purchase of Protein Samples Dear all CCP4 experts, Hello, I'm not molecular biologist and quite new in this field. I would like to know what companies (i.e. Sigma/Aldrich) are possibe for me to purchase purified protein samples. Any suggestion is welcomed. Many thanks in advance. stephen -- Dr. Stephen Sin-Yin Chui Research Assistant Professor, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China. Tel: 22415814 (Office), 22415818 (X-ray Diffraction Laboratory)