Nature, Volume 253

Academic acid activity addition animals Applications appointment associated Biol biological cells changes chemical Chemistry close complex concentration containing culture Department described determined direction edited effect electron energy enzyme evidence experience factor field function further give given human important increase indicate Institute interaction interest involved Laboratory lead less light limit lines London material mean measured mechanism ment methods molecules Nature normal observed obtained occur Officer original period phase Physics position possible present Press production protein Publishers range Received recent recorded region response Salary samples Science Scientific seems separation sequence shown similar solution species structure suggested surface Table tion United University York