HCF-1 is cleaved in the active site of O-GlcNAc transferase.
Lazarus, M.B., Jiang, J., Kapuria, V., Bhuiyan, T., Janetzko, J., Zandberg, W.F., Vocadlo, D.J., Herr, W., Walker, S.(2013) Science 342: 1235-1239
- PubMed: 24311690 
- DOI: 10.1126/science.1243990
- Primary Citation of Related Structures:  
4N39, 4N3A, 4N3B, 4N3C - PubMed Abstract: 
Host cell factor-1 (HCF-1), a transcriptional co-regulator of human cell-cycle progression, undergoes proteolytic maturation in which any of six repeated sequences is cleaved by the nutrient-responsive glycosyltransferase, O-linked N-acetylglucosamine (O-GlcNAc) transferase (OGT) ...