Protein mono-ADP-ribosyltransferase PARP14 (PARP14)

ADP-ribosyltransferase (PubMed:16061477, PubMed:27796300).

By mono-ADP-ribosylating STAT1 in'Glu-657' and'Glu-705' and consequently decreasing STAT1 phosphorylation, negatively modulates pro-inflammatory cytokines production in macrophages in response to IFNG stimulation (PubMed:27796300).

Mono-ADP- ribosylates STAT6 (By similarity). Enhances STAT6-dependent transcription (By similarity).