>5YNX_1|Chains A, B|Allergen Der f 21|Dermatophagoides farinae (6954) GLVPRGSEDKWRNAFDHMLMEEFEEKMDQIEHGLLMLSEQYKELEKTKSKELKEQILRELTIAENYLRGALKFMQQEAKRTDLNMFERYNFETAVSTIEILVKDLAELAKKVKAVKSD