The nucleic acids of the invention can be used as {HEAD ~ probes} to detect {TAIL ~ the presence} of Der p VII or Der f VII nucleic acid in a sample or for the recombinant production of peptides having a Der p VII or Der f VII activity 
The nucleic acids of the invention can be used as { HEAD ~ probes } to detect { TAIL ~ the presence } of Der p VII or Der f VII nucleic acid in a sample or for the recombinant production of peptides having a Der p VII or Der f VII activity
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