PKM and colonic neoplasm: In addition, K311succ of GLS in PDAC [137], K118succ of LDHA in prostate cancer [138], K123succ of Cu/Zn superoxide dismutase (SOD1) in lung cancer [139], K433succ of pyruvate kinase M2 (PKM2) in colon cancer [140], Ksucc of H3K122 and phosphoglyceromutase 1 (PGAM1) catalysed by HAT1 [113] and hypersuccinylation induced by R-2-hydroxyglutarate [141] all have a far-reaching and positive impact on tumorigenesis.