From owner-drosophila@net.bio.net Thu Dec 15 22:00:00 1994 Path: biosci!bloom-beacon.mit.edu!uhog.mit.edu!europa.eng.gtefsd.com!newsxfer.itd.umich.edu!gatech!howland.reston.ans.net!spool.mu.edu!uwm.edu!lll-winken.llnl.gov!enews.sgi.com!decwrl!tribune.usask.ca!quartz.ucs.ualberta.ca!unixg.ubc.ca!geraldam From: geraldam@unixg.ubc.ca (Gerald Alan Meister) Newsgroups: bionet.drosophila Subject: gene with XhoI fragment wanted Date: 15 Dec 1994 23:29:10 GMT Organization: University of British Columbia, Vancouver, B.C., Canada Lines: 18 Message-ID: <3cqjg6$ibn@nnrp.ucs.ubc.ca> NNTP-Posting-Host: interchg.ubc.ca X-Newsreader: TIN [version 1.2 PL2] I have some single-fly Drosophila genomic Southern blots which have been digested with Xho I. I wish to reprobe these blots with a single copy gene to estimate the amount of DNA loaded per lane. The problem is that the single copy genes for which I have probes(eg: Adh and ry) are cut only once by Xho I. The bands on the Southern blots therefore are very large, extending from the single internal site to genomic DNA on either side of the gene. Unfortunately, the high molecular weight DNA didn't transfer efficiently on many of these blots. Does anyone have, or know of, a gene which would generate an internal Xho I fragment of about 0.5 to 5 kb in Drosophila DNA? If so I would greatly appreciate receiving some DNA or a bacterial stock. Thanks in advance, -- Gerry Meister T.A. Grigliatti's lab University of British Columbia .