| Geno | Mag | Summary | 
| (A;A) | 1 | Possible increased risk of multiple sclerosis if SH2D2A promoter GA repeat=16 | 
| (A;G) | 0 | No increased risk. | 
| (G;G) | 0 | No increased risk. | 
 
Rs926103 is located within the SH2D2A gene on Chromosome 1. SH2D2A encodes an adapter protein thought to function in T-cell signal transduction. [PMID 11528519]
A study in the Journal for Neuroimmunology reported that 16 repeats repeat of GA after the (A;A) allele at this SNP is associated with multiple sclerosis in Norwegian, Danish and Swedish sample sets. [PMID 18554728]
The study concludes that the SH2D2A gene may contribute to susceptibility to MS. [PMID 18554728]
This study has yet to be verified or reproduced in any subsequent research.
[PMID 11528519] The T cell regulator gene SH2D2A contributes to the genetic susceptibility of multiple sclerosis
[PMID 18554728] rs926103 and a GA repeat polymorphism forming a risk haplotype for Multiple sclerosis
The fact that this is a mixture of a snp and a repeat makes this an interesting test case for Promethease