raise SeqError, "Missing seq_name" if self.seq_name.nil? or self.seq_name == ''
raise SeqError, "Missing seq" if self.seq.nil? or self.seq.empty?
raise SeqError, "Missing seq_name" if self.seq_name.nil? or self.seq_name == ''
raise SeqError, "Missing seq" if self.seq.nil? or self.seq.empty?