Structural highlights
Function
A0A2L0EBJ5_DERPT Binds to actin and affects the structure of the cytoskeleton. At high concentrations, profilin prevents the polymerization of actin, whereas it enhances it at low concentrations.[RuleBase:RU003908]
Publication Abstract from PubMed
Structural and allergenic characterization of mite profilins has not been previously pursued to a similar extent as plant profilins. Here, we describe structures of profilins originating from Tyrophagus putrescentiae (registered allergen Tyr p 36.0101) and Dermatophagoides pteronyssinus (here termed Der p profilin), which are the first structures of profilins from Arachnida. Additionally, the thermal stabilities of mite and plant profilins are compared, suggesting that the high number of cysteine residues in mite profilins may play a role in their increased stability. We also examine the cross-reactivity of plant and mite profilins as well as investigate the relevance of these profilins in mite inhalant allergy. Despite their high structural similarity to other profilins, mite profilins have low sequence identity with plant and human profilins. Subsequently, these mite profilins most likely do not display cross-reactivity with plant profilins. At the same time the profilins have highly conserved poly(l-proline) and actin binding sites.
Structural homology of mite profilins to plant profilins is not indicative of allergic cross-reactivity.,O'Malley A, Sankaran S, Carriuolo A, Khatri K, Kowal K, Chruszcz M Biol Chem. 2024 Apr 26. doi: 10.1515/hsz-2023-0366. PMID:38662449[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ O'Malley A, Sankaran S, Carriuolo A, Khatri K, Kowal K, Chruszcz M. Structural homology of mite profilins to plant profilins is not indicative of allergic cross-reactivity. Biol Chem. 2024 Apr 26. PMID:38662449 doi:10.1515/hsz-2023-0366
