Could somebody tell me whether the Tm of a hairpin in a single stranded DNA depends on the salt concentration. Thanks in advance. -- .. Alain LAIGLE .. Equipe de Biophysique . .. LPCB - Institut CURIE Tel : (33 1) 40 51 67 76 . .. 11, rue Pierre et Marie Curie Fax : (33 1) 40 51 06 36 . .. 75231 Paris Cedex 05 FRANCE Email : laigle at radium.jussieu.fr