For instance, MS risk modulators, including genetic variants in interleukin-7 receptor-α (IL7RA∗C), IL-2 receptor-α (IL2RA∗T), MGAT1, and CTLA-4, and environmental factors affecting vitamin D3 levels, converge in order to alter branching of Asn (N)-linked glycans [44], Gourraud et al 2012. Here, CTLA4 is linked to myeloid sarcoma.