00275nam a22001217a 4500003000400000008004100004082001900045245003700064260001500101300000800116942001200124999001700136OSt240715b        |||||||| |||| 00| 0 eng d  aP574.1925bM57  aMethods in enzymology - 69 (P+C)  bA. Pc1980  a894  2ddccBK  c41200d41200