Table 2.
The 15 most abundant glycoside hydrolase (GH, left table) and carbohydrate binding modules (CBM, right table) families of the thermophilic biogas-producing microbial community as analyzed by means of the carbohydrate-active enzyme database (CAZy) annotation web-server dbCAN
| Predicted CAZy glycoside hydrolase (GH) family | Number of sequences in the combined microbial metagenome | Predicted CAZy carbohydrate binding modules (CBM) family | Putative binding substrate | Number of sequences in the combined microbial metagenome |
|---|---|---|---|---|
| GH13 | 12,265 | CBM50 | Chitin | 10,403 |
| GH94 | 8720 | CBM44 | Xylan | 4032 |
| GH43 | 5793 | CBM48 | α-glucan | 2030 |
| GH109 | 5696 | CBM32 | β-mannans | 1943 |
| GH2 | 5506 | CBM35 | β-glucans, pectins, mannans, gluco- and galacturonans | 1921 |
| GH3 | 5075 | CBM9 | Crystalline cellulose | 1906 |
| GH23 | 4155 | CBM6 | Cello-oligosaccharides, laminarin | 1842 |
| GH31 | 3912 | CBM22 | Amorphous celluloses and insoluble and soluble xylan | 1823 |
| GH18 | 3896 | CBM34 | Starch | 1405 |
| GH10 | 3385 | CBM16 | Cellulose and glucomannan | 1299 |
| GH4 | 3015 | CBM41 | α-glucans, amylose, amylopectin, pullulan | 1114 |
| GH51 | 2983 | CBM66 | Fructans | 1000 |
| GH57 | 2499 | CBM40 | Sialic acid | 715 |
| GH95 | 2408 | CBM4 | Amorphous cellulose | 687 |
| GH5 | 2257 | CBM67 | Rhamnose | 678 |