The pH-dependent conformational transition of beta-lactoglobulin modulates the binding of protoporphyrin IX.
Tian F, Johnson K, Lesar AE, Moseley H, Ferguson J, Samuel ID, Mazzini A, Brancaleon L. The pH-dependent conformational transition of beta-lactoglobulin modulates the binding of protoporphyrin IX. Biochim Biophys Acta. 2006 Jan; 1760(1):38-46.