Table 3.
Phytophthora cinnamomi proteins involved in plant cell wall degradation: enzymes containing glycosyl hydrolase (GH) modules.
| CAZyme family | Potential substrates | Potential enzyme activities | Number of genes |
|---|---|---|---|
| GH1 | Cellulose, hemicellulose (XG), pectin (RGI) | β‐Glucosidase, β‐galactosidase, β‐mannosidase, exo‐β‐1,4‐glucanase | 14 |
| GH2 | Hemicellulose (mannans), glycoproteins | β‐Mannosidase | 1 |
| GH3 | Cellulose, hemicellulose (XG), pectin (RGI), AGPs | β‐Glucosidase, exo‐β‐1,4‐glucosidase, β‐1,4‐xylosidase, β‐1,3‐glucosidase, α‐l‐arabinofuranosidase | 26 |
| GH5 | Cellulose, hemicellulose (xylans, galactomannans), β‐1,3‐glucans | Endo‐β‐1,4‐glucanase, β‐1,4‐cellobiosidase, endo‐β‐1,4‐xylanase, endo‐β‐1,4‐mannosidase, β‐1,3‐glucosidase | 30 |
| GH6 | Cellulose | Endo‐β‐1,4‐glucanase, cellobiohydrolase | 7 |
| GH7 | Cellulose | Endo‐β‐1,4‐glucanase, cellobiohydrolase | 7 |
| GH10 | Hemicellulose (xylans) | Endo‐β‐1,4‐β‐xylanase | 6 |
| GH12 | Cellulose, hemicellulose (XG) | Endo‐β‐1,4‐glucanase, XG endo‐β‐1,4‐glucanase | 10 |
| GH13 | Starch | α‐Amylase, α‐glucosidase | 2 |
| GH16 | Hemicellulose (XG), β‐1,3‐glucans | XG endo‐β‐1,4‐glucanase, β‐1,3‐glucosidase | 21 |
| GH17 | β‐1,3‐Glucans | Endo‐β‐1,3‐glucosidase | 21 |
| GH18 | N‐linked oligosaccharides | Endo‐β‐N‐acetylglucosaminidase | 3 |
| GH19 | N‐linked oligosaccharides | Endo‐β‐N‐acetylglucosaminidase | 1 |
| GH28 | Pectin (HG) | Polygalacturonase | 26 |
| GH30 | Cellulose, hemicellulose (XG), pectin (RGI), AGPs | β‐Glucosidase, endo‐β‐1,4‐xylanase, xylan β‐1,4‐xylosidase, endo‐β‐1,6‐galactanase, β‐1,6‐glucanase | 17 |
| GH31 | Starch, hemicellulose (XG) | α‐Glucosidase, α‐xylosidase | 6 |
| GH32 | Sucrose | Invertase | 3 |
| GH35 | Hemicellulose (XG), pectin (HG), AGPs | β‐Galactosidase, exo‐β‐1,4‐galactanase | 1 |
| GH37 | Trehalose (α,α‐1,1‐glucans) | α,α‐Trehalase | 2 |
| GH38 | N‐linked oligosaccharides | α‐Mannosidase | 1 |
| GH43 | Hemicellulose (xylans), pectin (RGI), AGPs | α‐l‐Arabinofuranosidase | 7 |
| GH45 | Cellulose, β‐glucans | Endo‐glucanase | 1 |
| GH47 | N‐linked oligosaccharides | α‐Mannosidase | 5 |
| GH53 | Pectin (RGI) | Endo‐β‐1,4‐galactanase | 6 |
| GH54 | Pectin (RGI) | α‐l‐Arabinofuranosidase | 2 |
| GH63 | N‐linked oligosaccharides | α‐1,3‐Glucosidase, α‐glucosidase | 1 |
| GH72 | β‐1,3‐Glucans | β‐1,3‐Glucanosyl‐transglycosylase | 10 |
| GH78 | Pectin (RGI) | α‐l‐Rhamnosidase | 6 |
| GH81 | β‐1,3‐Glucans | Endo‐β‐1,3‐glucanase | 12 |
| GH85 | AGPs | Endo‐β‐N‐acetylglucosaminidase | 1 |
| GH89 | N‐linked oligosaccharides | α‐N‐Acetylglucosaminidase | 1 |
| GH105 | Pectin (RGI) | Unsaturated rhamnogalacturonyl hydrolase | 1 |
| GH109 | O‐linked oligosaccharides | α‐N‐Acetylgalactosaminidase | 8 |
| GH114 | Glycoproteins | Endo‐α‐1,4‐polygalactosaminidase | 1 |
| GH123 | O‐linked oligosaccharides | Glycosphingolipid β‐N‐acetylgalactosaminidase | 1 |
| GH131 | Cellulose, hemicellulose (β‐1,4‐glucans) | Exo‐β‐1,3/1,6‐glucanase, endo‐β‐1,4‐glucanase | 3 |
| Total | 271 |
AGP, arabinogalactan protein; CAZyme, Carbohydrate‐Active enZyme; HG, homogalacturonan; RGI, rhamnogalacturonan I; XG, xyloglucan.