# File lib/gmap/core.rb, line 209
        def clear
                @query = nil
                @target = nil
                @start = nil
                @end = nil
                @strand = nil
                @exons = nil
                @coverage = nil
                @perc_identity = nil
                @indels = nil
                @mismatch = nil
                @aa_change = nil
                @gene_start = nil
                @gene_end = nil
                @gene_id = nil
                @q_start = nil
                @q_end = nil 
                @aln = ""
                
        # Inizalize control attributes
                                            
                @maps = false
                @search_aln = false
                @save_aln = false
                @c = 0
        end