All pathways
NAD⁺ & Sirtuins
SIRT6
The chromatin sirtuin governing DNA double-strand-break repair, telomere maintenance, and genome stability.
Role in aging
SIRT6 stabilizes telomeric chromatin and promotes double-strand-break repair; its decline links genomic instability to telomere attrition. Like all sirtuins it is NAD⁺-dependent.