PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19553333-8 2009 We evaluated the functional significance of these phosphorylation events and found that phosphorylation on Thr-164, Ser-151, and Ser-153 is critical for Rex-2 function in vivo and that phosphorylation of Ser-151 is correlated with nuclear/nucleolar subcellular localization. Threonine 107-110 RNA exonuclease 2 Homo sapiens 153-158