GO:0018242

protein O-linked glycosylation via serine

Details: 
The glycosylation of protein via the O3 atom of peptidyl-serine, forming O3-glycosyl-L-serine; the most common forms are N-acetylgalactosaminyl, mannosyl, galactosyl, and xylosyl serine. [RESID:AA0154]
Evidence Code: 
IEA