code: public CDSSequence removeCDS(String accession) {
  		for (CDSSequence cdsSequence : cdsSequenceList) {
  			if (cdsSequence.getAccession().getID().equals(accession)) {
  				cdsSequenceList.remove(cdsSequence);
  				cdsSequenceHashMap.remove(accession);
  				return cdsSequence;
  			}
  		}
  		return null;
  	}
docs: Remove a CDS or coding sequence from the transcript sequence
  @param accession
  @return