Cellobiohydrolase
FunctionCellobiohydrolase (CBH) is a cellulase which degrades cellulose by hydrolysing the 1,4-β-D-glycosidic bonds. CBH is an exocellulase which cleaves two to four units from the ends of cellulose. There are two types of CBH. CBHI cleaves progressively from the reducing end while CBHII cleaves progressively from the nonreducing end of cellulose.[1]. The exo-acting CBH I is called Cel7A. The endo-acting CBH I is called Cel7B. Structural highlightsThe of CBH contains (Gln-Asp-Glu in 3cel, cyan) and is situated at the .[2] Water molecules shown as red spheres. 3D structures of cellobiohydrolaseCellobiohydrolase 3D structures
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3D structures of cellobiohydrolase3D structures of cellobiohydrolase
Updated on 05-May-2019
- 1cel, 4p1h, 4p1j, 5tc9 – HjCBHI Cel7A catalytic domain – Hypocrea jecorina
- 2cel, 4cel, 1egn, 1q2b, 5oa5 - HjCBHI catalytic domain (mutant)
- 1cbh, 2cbh, 5x34, 5x35, 5x36, 5x37, 5x38 – HjCBHI C terminal – NMR
- 5x3c, 5x39 – HjCBHI C terminal (mutant) – NMR
- 1azh, 1az6, 1azj, 1azk - HjCBHI cellulose-binding domain (mutant) - NMR
- 1gpi - PcCBHI Cel7D catalytic domain – Phanerochaete chrysosporium
- 1q9h, 3pfj - TeCBHI Cel7A catalytic domain – Talaromyces emersonii
- 2yok, 2y9n - CBHI Cel7A catalytic domain – Hypocrea lixii
- 5mcc, 5mcd, 5mce, 5mcf, 5mch, 5mci, 5mcj, 5mck, 5mcl, 5mcm, 5mcn, 4xnn – wfCBHI – water flea
- 4zzv, 5amp - GcCBHI Cel7A catalytic domain – Galactomyces candidum
- 2mwk, 2mwj - TrCBHI Cel7A carbohydrate-binding module 1 domain – Trichoderma reesei
- 4v1z – AfCBH Cel7A – Aspergillus fumigatus
- 1cel, 4p1h, 4p1j, 5tc9 – HjCBHI Cel7A catalytic domain – Hypocrea jecorina
- Cellobiohydrolase I binary complex
- 3cel, 4uwt - HjCBHI Cel7A catalytic domain (mutant) + cellobiose
- 5cel, 1q2e, 4d5v - HjCBHI Cel7A catalytic domain (mutant) + cellotetraose
- 4d5q - HjCBHI Cel7A catalytic domain + cellopentaose
- 6cel, 4d5o, 4d5p - HjCBHI Cel7A catalytic domain (mutant) + cellopentaose
- 7cel - HjCBHI catalytic domain (mutant) + glucose
- 2v3i, 2v3r - HjCBHI Cel7A catalytic domain + phenanthrenolol
- 1dy4, 6grn - TrCBHI Cel7A catalytic domain + propranolol derivative
- 4v0z - TrCBH Cel7A catalytic domain + cellobiose
- 4vwt - TrCBH Cel7A (mutant) catsalytic domain + cellobiose
- 4c4c - TrCBHI Cel7A catalytic domain (mutant) + cellononaose
- 4c4d, 4d5i, 4d5j - TrCBHI Cel7A catalytic domain (mutant) + cellotrioside
- 3pfx - TeCBHI Cel7A catalytic domain + cellobiose
- 3pfz - TeCBHI Cel7A catalytic domain + cellotetraose + cellobiose
- 3pl3 - TeCBHI Cel7A catalytic domain + cellopentaose
- 4zzu - GgCBHI Cel7A catalytic domain + cellotetraose – Galactomyces geotrichum
- 4zzw - GgCBHI Cel7A catalytic domain + cellobiose
- 4zzt - GcCBHI Cel7A catalytic domain + cellotraiose
- 5w11 - CBHI Cel7A catalytic domain + cellotriose – Myceliophthota thermophila
- 5o5d - HaCBHI Cel7A catalytic domain – Hypocrea atroviridis
- 5o59 - HaCBHI Cel7A catalytic domain + glucose
- 4v20 - AfCBH Cel7A catalytic domain + disaccharide
- 1h46 - PcCBHI Cel7D catalytic domain + propranolol
- 1z3t - PcCBHI Cel7D catalytic domain + cellobiose
- 1z3v - PcCBHI Cel7D catalytic domain + lactose
- 1z3w - PcCBHI Cel7D catalytic domain + cellobioimidazole
- 3cel, 4uwt - HjCBHI Cel7A catalytic domain (mutant) + cellobiose
- Cellobiohydrolase II or Cellobiohydrolase Cel6A or exoglucanase 2
- Cellobiohydrolase II complex
- 1bvw - HiCBHII catalytic domain + mannose – Humicola insolens
- 4au0 - HjCBHII catalytic domain Cel6A (mutant) + cellobioside
- 2bvw - HiCBHII Cel6A catalytic domain + glucose + cellotetraose
- 1gz1, 1oc5 - HiCBHII Cel6A catalytic domain (mutant) + cellotetraose
- 1oc7 - HiCBHII Cel6A catalytic domain (mutant) + cellopentaose
- 1ocj - HiCBHII Cel6A catalytic domain + cellopentaose
- 1ocb - HiCBHII Cel6A catalytic domain + fluorescent substrate
- 1ocn - HiCBHII Cel6A catalytic domain (mutant) + isofagomine
- 1qjw - TrCBHII Cel6A catalytic domain (mutant) + cellotetraose
- 4ax6, 4ax7 - TrCBHII Cel6A catalytic domain (mutant) + cellobioside
- 1qk0 - TrCBHII Cel6A catalytic domain + polysaccharide
- 1qk2 - TrCBHII Cel6A catalytic domain + cellotetraose
- 4a05 - CBHII Cel6A catalytic domain + cellotetraose – Chaetonium thermophilum
- 1bvw - HiCBHII catalytic domain + mannose – Humicola insolens
- Other cellobiohydrolases
- Other cellobiohydrolases binary complex
ReferencesReferences
- ↑ Divne C, Stahlberg J, Teeri TT, Jones TA. High-resolution crystal structures reveal how a cellulose chain is bound in the 50 A long tunnel of cellobiohydrolase I from Trichoderma reesei. J Mol Biol. 1998 Jan 16;275(2):309-25. PMID:9466911 doi:http://dx.doi.org/10.1006/jmbi.1997.1437
- ↑ Stahlberg J, Divne C, Koivula A, Piens K, Claeyssens M, Teeri TT, Jones TA. Activity studies and crystal structures of catalytically deficient mutants of cellobiohydrolase I from Trichoderma reesei. J Mol Biol. 1996 Nov 29;264(2):337-49. PMID:8951380 doi:http://dx.doi.org/10.1006/jmbi.1996.0644