X-linked hyper-IgM (XHIGM) syndrome is caused by mutations of the CD40LG gene. encoding the CD40L protein. The clinical presentation is characterized by early-onset infections. with profound hypogammaglobulinemia and often elevated IgM. https://xlobojuj524sux.bloginwi.com/68594838/gag-mutations-strongly-contribute-to-hiv-1-resistance-to-protease-inhibitors-in-highly-drug-experienced-patients-besides-compensating-for-fitness-loss