Brett, how long? I've left them overnight before proceeding without any problems.
It would not be "re-fixation" as with formalin. However, if it is in a detergent buffer it might cause some other kind of denaturation. Tim Morken Supervisor, Histology / IPOX UCSF Medical Center San Francisco, CA -----Original Message----- From: histonet-boun...@lists.utsouthwestern.edu [mailto:histonet-boun...@lists.utsouthwestern.edu] On Behalf Of Connolly, Brett M Sent: Tuesday, October 20, 2009 11:22 AM To: histonet@lists.utsouthwestern.edu Subject: [Histonet] Antigen retrieval question Has anyone experienced a "reversal" of citrate HEIR unmasking do to a prolonged delay in continuing the experiment after the retrieval step? Brett M. Connolly, Ph.D. Research Fellow, Imaging Dept. Merck & Co., Inc. PO Box 4, WP-44K West Point, PA 19486 tel. 215-652-2501 fax. 215-993-6803 brett_conno...@merck.com Notice: This e-mail message, together with any attachments, contains information of Merck & Co., Inc. (One Merck Drive, Whitehouse Station, New Jersey, USA 08889), and/or its affiliates (which may be known outside the United States as Merck Frosst, Merck Sharp & Dohme or MSD and in Japan, as Banyu - direct contact information for affiliates is available at http://www.merck.com/contact/contacts.html) that may be confidential, proprietary copyrighted and/or legally privileged. It is intended solely for the use of the individual or entity named on this message. If you are not the intended recipient, and have received this message in error, please notify us immediately by reply e-mail and then delete it from your system. _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet
