Natural Der f 2 (NA-DF2-1)

Allergen: Der f 2 (Dermatophagoides farinae allergen 2), house dust mite

Unit: 250µg

Source: D. farinae culture medium

Mol. Wt: 14 kD

Purification: From mite culture by affinity chromatography using anti-mite Group 2 monoclonal antibody 7A1. Purity >95% by SDS-PAGE.

Concentration: See package insert.

Formulation: Preservative-free and carrier-free in phosphate buffered saline, pH 7.4. Filtered through 0.22µm filter.

Storage: Store at -20◦C. Re-freeze unused portion and aliquot into smaller quantities to avoid freeze/thaw cycles. Gently defrost at room temperature.

Notes: (1) The preparation shows a major Der f 2 band at 14kD on silver stained SDS-PAGE having purity > 95%. (2) Not tested for endotoxin.

PDB: 1XWV, 2FO8 X-ray crystal structures

Product Resources: Natural Der f 2 Certificate of Analysis

Allergens are provided for research and commercial use in vitro: Not for human in vivo or therapeutic use.