From owner-dros@hgmp.mrc.ac.uk Wed Jun 20 15:10:26 2001 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id BC40117B89 for ; Wed, 20 Jun 2001 15:10:25 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id B632F17B24 for ; Wed, 20 Jun 2001 15:10:22 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 6020) id C40B317B91; Wed, 20 Jun 2001 15:10:17 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 2F0E417B96 for ; Wed, 20 Jun 2001 14:11:54 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id 9A31517B91; Wed, 20 Jun 2001 14:11:49 +0100 (BST) To: bionet-drosophila@net.bio.net From: rjd23@cus.cam.ac.uk ("R.J. Davenport") Newsgroups: bionet.drosophila Subject: plasma membrane targeting sequence Organization: BIOSCI/MRC Human Genome Mapping Project Resource Centre Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 1B75017B96 for ; Wed, 20 Jun 2001 14:11:47 +0100 (BST) X-Received: from draco.cus.cam.ac.uk (draco.cus.cam.ac.uk [131.111.8.18]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 7E72317B91 for ; Wed, 20 Jun 2001 14:11:42 +0100 (BST) X-Received: from rjd23 (helo=localhost) by draco.cus.cam.ac.uk with local-smtp (Exim 3.30 #3) id 15Chlm-0000k6-00 for dros@net.bio.net; Wed, 20 Jun 2001 14:11:42 +0100 X-Reply-To: "R.J. Davenport" X-To: dros@net.bio.net Date: Wed, 20 Jun 2001 15:10:17 +0100 (BST) Sender: owner-dros@hgmp.mrc.ac.uk Precedence: bulk hi, I am trying to express plant ion channels in S2 cells. I have constructs with C-terminal GFP tags and have determined that the gene products are targeted to endomembranes in S2. I want to patch-clamp transformed cells, so I need plasma membrane-expressed proteins. Can anyone suggest a reliable PM targeting sequence in Drosophila? Thanks very much! Romola Romola Davenport Dept of Plant Sciences Downing St Cambridge CB2 3EA (01223) 330 210 (lab)* Newnham College Cambridge CB3 9DF (01223) 335 810* *omit first '3' if using an internal line --- .