From owner-metabolic-reg@net.bio.net Thu Sep 26 23:00:00 1996 Path: biosci!agate!howland.erols.net!news.sprintlink.net!news-peer.sprintlink.net!uunet!in1.uu.net!ott.istar!istar.net!van.istar!west.istar!n1van.istar!van-bc!unixg.ubc.ca!noc.van.hookup.net!nic.mtl.hookup.net!rcogate.rco.qc.ca!altitude!usenet From: "Achim Recktenwald, PhD" Newsgroups: bionet.metabolic-reg Subject: Re: Very high MW determination? Date: Fri, 27 Sep 1996 08:24:45 -0500 Organization: IBEX Technologies, Inc., Biochemistry, 5485 Pare, Montreal, PQ, H4P 1P7, Canada Lines: 14 Message-ID: <324BD59C.488C@ibex.ca> References: <843806913.29980.1@njosborn.demon.co.uk> NNTP-Posting-Host: ibex.hip.cam.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Mailer: Mozilla 3.0 (Macintosh; I; PPC) To: "Nigel J.Osborn" Nigel J.Osborn wrote: > > Does anyone know how to measure protein MW in the order of 500,000 to > several million? Any help would be appreciated. > > Nigel. Depends how exact you need it. You could try gel-filtration with gels having pore sizes large enough for viruses. I would try Sepharose 2B or CL-2B. Achim .