| Activities in Family | Modules of approx. 40 residues found almost exclusively in fungi. The cellulose-binding function has been demonstrated in many cases, and appears to be mediated by three aromatic residues separated by about 10.4 angstrom and which form a flat surface. The only non-fungal occurence of CBM1 is in an algal non-hydrolytic polysaccharide-binding protein which is composed of four repeated CBM1 modules. Binding to chitin has been demonstrated in one case. |
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| Note | Previously known as cellulose-binding domain family I (CBD I). |
| External resources | CAZypedia; PROSITE; SMART; |
| Statistics | GenBank accession (2196); Uniprot accession (252); PDB accession (24); 3D entries (5); cryst (1) |