Nucleic Acids Research, Vol 25, Issue 7 1467-1468, Copyright © 1997 by Oxford University Press
E Werner, AA Holder and JD Hoheisel
To date, frozen storage of YAC libraries have relied on the administration
of glycerol to the medium subsequent to cell growth. By adding Hogness
Freezing Medium prior to inoculation, cultures can be frozen directly after
cell growth, with no adverse effect on the stability of the YAC DNA or on
the viability of the cells even after repeated freezing and defrosting.
Although a relatively simple modification, the procedure notably improves
the handling of YAC libraries and significantly reduces the risk of
contamination, especially when dealing with large numbers of clones.
ARTICLES
Growth and storage of YAC clones in Hogness Freezing Medium
Molecular-Genetic Genome Analysis, Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 506, D-69120 Heidelberg, Germany.
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