PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17513615-5 2007 The SFN-treated LNCaP cells were also arrested in mitosis as revealed by immunofluorescence microscopy and increased Ser(10) phosphorylation of histone H3, a sensitive marker for mitotic cells. Serine 117-120 RNA exonuclease 2 Homo sapiens 4-7