code: def columnclean(column):
          
          cleanedcolumn = str(column) \
              .replace('%', 'percent') \
              .replace('(', '_') \
              .replace(')', '') \
              .replace('As', 'Adenosines') \
              .replace('Cs', 'Cytosines') \
              .replace('Gs', 'Guanines') \
              .replace('Ts', 'Thymines') \
              .replace('Ns', 'Unknowns') \
              .replace('index', 'adapterIndex')
          return cleanedcolumn
docs: Modifies column header format to be importable into a database
          :param column: raw column header
          :return: cleanedcolumn: reformatted column header