birch pollen allergen protein bet v1. 3d rendering based on protein data bank entry 1bv1. stylized cartoon model, alpha-helices

pdb1bv1 birch pollen allergen bet allergy allergenic allergic betula pendula tree oral syndrome pollinosis structure peptide protein amino acid molecule polypeptide polymer atoms science scientific disease health molecular model 3d rendering illustration cartoon secondary red yellow sheet helix betasheet alphahelix sketch technical drawing pencil