SPHINX31 is a potent and selective inhibitor of serine/arginine-rich protein kinase 1 (SRPK1), with an IC50 of 5.9 nM. SPHINX31 inhibits phosphorylation of serine/arginine-rich splicing factor 1 (SRSF1). SPHINX31 is a potential topical therapeutic for neovascular eye disease[1].
References:
[1]. Batson J, et al. Development of Potent, Selective SRPK1 Inhibitors as Potential Topical Therapeutics for Neovascular Eye Disease. ACS Chem Biol. 2017 Mar 17;12(3):825-832.