Phl p 3 and Phl p 4 are two important allergens from timothy grass pollen, a widespread trigger of hay fever. These models show how their structures may contribute to their ability to cause allergic reactions. Studying these allergens helps increase understanding of how different grass pollens affect the immune system and may support the development for more precise allergy treatments.

Molecule Name(s): Phl p 3, Phl p 4

Source: Timothy grass (Phleum pratense)

Biological Role: Grass pollen protein found in the interior of the pollen grain

Associated Allergies: Seasonal pollen allergies

References: PDB entries 3FT1 & 3TSH

Teal: Phl p 3 (PDB 3FT1)

Olive green: Phl p 4 (PDB 3TSH)