question: Is there any role of 5hmC in T-cell development and differentiation?
answer: Yes. 5hmC is enriched in the gene body of highly expressed genes at all different stages of T-cell development in the thymus and that its presence correlates positively with gene expression. Further emphasizing the connection with gene expression, 5hmC is enriched in active thymus-specific enhancers and genes encoding key transcriptional regulators display high intragenic 5hmC levels in precursor cells at those developmental stages where they exert a positive effect.