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The Calcium Goes Meow: Effects of Ions and Glycosylation on Fel d 1, the Major Cat Allergen
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The Calcium Goes Meow: Effects of Ions and Glycosylation on Fel d 1, the Major Cat Allergen
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Journal Article
The Calcium Goes Meow: Effects of Ions and Glycosylation on Fel d 1, the Major Cat Allergen
2015
Overview
The major cat allergen, Fel d 1, is a structurally complex protein with two N-glycosylation sites that may be filled by different glycoforms. In addition, the protein contains three putative Ca2+ binding sites. Since the impact of these Fel d 1 structure modifications on the protein dynamics, physiology and pathology are not well established, the present work employed computational biology techniques to tackle these issues. While conformational effects brought upon by glycosylation were identified, potentially involved in cavity volume regulation, our results indicate that only the central Ca2+ ion remains coordinated to Fel d 1 in biological solutions, impairing its proposed role in modulating phospholipase A2 activity. As these results increase our understanding of Fel d 1 structural biology, they may offer new support for understanding its physiological role and impact into cat-promoted allergy.
Publisher
Public Library of Science,Public Library of Science (PLoS)
Subject
/ Allergy
/ Analysis
/ Animals
/ Biology
/ Calcium
/ Cats
/ Ligands
/ Molecular Docking Simulation
/ Molecular Dynamics Simulation
/ N-Acetylneuraminic Acid - chemistry
/ Phospholipases A2 - metabolism
/ Polychlorinated Biphenyls - metabolism
/ Protein Processing, Post-Translational
/ Proteins
/ Studies
