CXC Chemokine Ligand 12 Facilitates Gi Protein Binding to CXC Chemokine Receptor 4 by Stabilizing Packing of the Proline–Isoleucine–Phenylalanine Motif: Insights from Automated Path Searching - Xinyu Li; Yezhou Liu; Jinchu Liu; Wenzhuo Ma; Rujuan Ti; Arieh Warshel; Richard D. Ye; Lizhe Zhu (Journal of the American Chemical Society, 2025)