PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 24362026-7 2014 In addition, we showed that Thr-355 of HPK1 is a key PP4 dephosphorylation site, through which CUL7/Fbxw8 ubiquitin ligase and PP4 regulates HPK1 stability. Threonine 28-31 F-box and WD repeat domain containing 8 Homo sapiens 100-105