PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8798720-0 1996 SRPK1 and Clk/Sty protein kinases show distinct substrate specificities for serine/arginine-rich splicing factors. Arginine 83-91 CDC like kinase 1 Homo sapiens 10-17 8798720-6 1996 In vitro, the Clk/Sty kinase phosphorylated Ser-Arg, Ser-Lys, or Ser-Pro sites, whereas SRPK1 had a strong preference for Ser-Arg sites. Arginine 48-51 CDC like kinase 1 Homo sapiens 14-17 8798720-6 1996 In vitro, the Clk/Sty kinase phosphorylated Ser-Arg, Ser-Lys, or Ser-Pro sites, whereas SRPK1 had a strong preference for Ser-Arg sites. Arginine 126-129 CDC like kinase 1 Homo sapiens 14-17