6. Do you have any criteria for complex genes such as high GC content sequences?

We do not have strict criteria for “complex genes”. Based on our experience, a sequence will be considered as a “complex sequence” if it meets one or more of following criteria:

  1. GC content >70% or <40% in part of the sequence or the whole sequence;
  2. Long sequence repeats exists in a high frequency. E.g. repeats (internal repeats, direct into common vectors.