Resumen: Protein O-fucosylation is an important post-translational modification (PTM) found in cysteine-rich repeats in proteins. Protein O-fucosyltransferases 1 and 2 (PoFUT1 and PoFUT2) are the enzymes responsible for this PTM and selectively glycosylate specific residues in epidermal growth factor-like (EGF) repeats and thrombospondin type I repeats (TSRs), respectively.Within the past six years, crystal structures of both enzymes have been reported, revealing important information on how they recognize protein substrates and achieve catalysis. Here, the structural information available today is summarized and how PoFUT1 and PoFUT2 employ different catalytic mechanisms is discussed. Idioma: Inglés DOI: 10.1107/S2053230X18004788 Año: 2018 Publicado en: Acta Crystallographica Section F-Structural Biology Communications 74, 8 (2018), 443-450 ISSN: 2053-230X Factor impacto SCIMAGO: 0.701 - Biochemistry (Q2) - Biophysics (Q2) - Structural Biology (Q2) - Genetics (Q2) - Medicine (miscellaneous) (Q2) - Condensed Matter Physics (Q2)