TABLE 1.
Selected examples for carbohydrate GTs acting on N-glycans and O-glycans including type-II AGs on AGPs and EXTs from Arabidopsis thaliana or otherwise as indicated.
| Activity | CAZy family | Protein name | References |
| GTs in N-glycan processing | |||
| β-(1 → 2)-N-acetylglucosaminyltransferase I | 13 | GnTI/CGL1/GlcNAc-T1 | von Schaewen et al., 1993; Strasser et al., 1999a |
| β-(1 → 2)-N-acetylglucosaminyltransferase II | 16 | GnTII | Strasser et al., 1999b |
| β-(1 → 2)-xylosyltransferase | 61 | XYLT | Strasser et al., 2000 |
| α-(1 → 3)-fucosyltransferase | 10 | FUT11/FUT12 | Leiter et al., 1999 |
| β-(1 → 3)-galactosyltransferase 1 | 31 | GALT1 | Strasser et al., 2007b |
| α-(1 → 4)-fucosyltransferase | 10 | FUT13/FucTC | Wilson et al., 2001; Bakker et al., 2001 |
| P4Hs in AGPs/EXTs processing | |||
| Prolyl-4-hydroxylase | – | CrP4H1 | Koski et al., 2007, 2009; Velasquez et al., 2011 |
| P4H2,P4H5,P4H13 | Velasquez et al., 2015a | ||
| GTs in AGPs processing | |||
| Hyp-O-galactosyltransferase | 31 | GALT2-GALT6; HPGT1-HPGT3 (GALT15-GALT17) | Basu et al., 2013, 2015a, b; Ogawa-Ohnishi and Matsubayashi, 2015 |
| β-(1 → 3)-galactosyltransferase | 31 | GALT14 (KNS4/UPEX1) | Suzuki et al., 2017; Li et al., 2012 |
| GALT9 (At1g77810) | Qu et al., 2008 | ||
| GALT31A | Geshi et al., 2013; Ruprecht et al., 2020 | ||
| β-(1 → 6)-galactosyltransferase | 29 | GALT29A | Dilokpimol et al., 2014 |
| 31 | GALT31A | Knoch et al., 2014 | |
| β-glucuronosyltransferase | 14 | GlcAT14A-GlcAT14E | Knoch et al., 2013; Dilokpimol et al., 2014; Lopez-Hernandez et al., 2020; Zhang et al., 2020 |
| α-fucosyltransferase | 37 | FUT4 | Wu et al., 2010; Liang et al., 2013; Tryfona et al., 2014 |
| FUT6 | |||
| FUT7 | Ruprecht et al., 2020 | ||
| β-arabinosyltransferase | 77 | RAY1 | Gille et al., 2013 |
| GTs in EXTs processing | |||
| Hyp-O-arabinosyltransferase | 95 | HPAT1-HPAT3 | Ogawa-Ohnishi et al., 2013; Velasquez et al., 2015a |
| β-(1 → 2)-arabinosyltransferase | 77 | RRA1-RRA3 | Egelund et al., 2007; Velasquez et al., 2011 |
| β-(1 → 2)-arabinosyltransferase | 77 | XEG113 | Gille et al., 2009; Velasquez et al., 2011 |
| α-(1 → 3)-arabinosyltransferase | 47 | EXAD | Møller et al., 2017 |
| Serine-O-galactosyltransferase | 96 | SGT1/SerGT1 | Saito et al., 2014; Velasquez et al., 2015a |
In addition, prolyl-4-hydroxylases (P4Hs) are included. Please also see Showalter and Basu (2016) and Silva et al. (2020) for GTs acting in AGP/EXT O-glycan processing.