text_1: S-nitrosylated GAPDH physiologically transnitrosylates histone deacetylases.
text_2: Here, we show that SNO-GAPDH physiologically transnitrosylates nuclear proteins, including the deacetylating enzyme sirtuin-1 (SIRT1), histone deacetylase-2 (HDAC2) and DNA-activated protein kinase (DNA-PK).