As the P1 library is largely obsolete, the BDGP is discouraging the use of P1 clones.
Cosmids are available either singly or on high-density filters.
D.M. Glover and R.D.C. Saunders, Department of Biochemistry, University of Dundee, Dundee, Scotland. M. Ashburner, Department of Genetics, University of Cambridge, Cambridge, England. J. Modolell, Centro de Biologia Molecular, Universidad Autonoma, Madrid, Spain. Supported by the Stimulation Action Programme of the European Community, with initial funding from the Fondation Schlumberger. BDGP has arranged for Research Genetics to provide all of the BDGP cDNA clones.