code: public static DNASequence createDNASequence(final Fastq fastq) throws CompoundNotFoundException
  	{
  		if (fastq == null)
  		{
  			throw new IllegalArgumentException("fastq must not be null");
  		}
  		DNASequence sequence = new DNASequence(fastq.getSequence());
  		sequence.setOriginalHeader(fastq.getDescription());
  		return sequence;
  	}
docs: Create and return a new {@link DNASequence} from the specified FASTQ formatted sequence.
  
  @param fastq FASTQ formatted sequence, must not be null
  @return a new {@link DNASequence} from the specified FASTQ formatted sequence
  @throws CompoundNotFoundException if DNA sequence in fastq contains unrecognised compounds