Acetylation

Sirtuins are highly conserved enzymes with key roles in life extension in multiple organisms. A study now describes selective autophagic degradation of nuclear SIRT1 in senescent cells. These observations suggest that blocking sirtuin degradation could be a potential approach for anti-ageing therapies.

PD-L1 has been extensively described as the membrane-bound ligand of PD-1. A recent study discovered a previously unknown role for PD-L1, which is able to bind DNA and thus govern different pathways linked to either evasion of immune surveillance or tumour microenvironment inflammation.

The non-specific lethal (NSL) complex is a highly conserved MOF acetyltransferase-containing complex. A recent study now shows that the NSL complex acetylates a new non-histone target, Lamin A/C and reveals the NSL complex as a crucial factor in maintaining nuclear architecture and genome integrity.