Inferred from mouse:
Interleukin-25 (IL25 or IL17E) stimulation had any effect on the phosphorylation of STAT proteins. Although IL25 had no effect on the activation of Signal transducer and activator of transcription 6 (STAT6) and Signal transducer and activator of transcription 3 (STAT3), IL25 stimulation led to the activation of Signal transducer and activator of transcription 5A or 5B (STAT5), as indicated by the phosphorylation of STAT5 (Wu et al. 2015).
This is a black box event since the details about of the phosphorylated region could be incomplete.