We routinely use BSA-free anti-5His mAb from QIAGEN, and it works just fine (at least using media and lysates of both insect and mammalian cells):
http://www.qiagen.com/products/protein/detection/qiaexpressdetectionsystem/penta-hisantibody.aspx Good luck, Luca ---------------------------------------------------------------- Luca Jovine, Ph.D. Assistant Professor & EMBO Young Investigator Karolinska Institutet Department of Biosciences and Nutrition & Center for Biosciences Hälsovägen 7, SE-141 83 Huddinge, Sweden Voice: +46.(0)8.524-81136 FAX: +46.(0)8.6081-501 E-mail: luca.jov...@ki.se W3: http://jovinelab.org ---------------------------------------------------------------- ________________________________________ From: CCP4 bulletin board [CCP4BB@JISCMAIL.AC.UK] on behalf of D Bonsor [dbon...@ihv.umaryland.edu] Sent: Monday, June 25, 2012 23:33 To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Off-topic His-Antibody Are there any good antibodies for His-tags on the market. I have never used one and I heard several stories that they were poor and not worth the money, over the past few years. The only post I could find on the BB was from 2008. Have His-Antibodies improved or are they still rubbish.