Open Biology Publishes Article of Dr. Umesh Desai and Associates December 15, 2017 Solution structure of CXCL13 and heparan sulfate binding show that GAG binding site and cellular signalling rely on distinct domains. Monneau YR, Luo L, Sankaranarayanan NV, Nagarajan B, Vivès RR, Baleux F, Desai UR, Arenzana-Seidedos F, Lortat-Jacob H.