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1RQ5

Structural Basis for the Exocellulase Activity of the Cellobiohydrolase CbhA from C. thermocellum

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Cellobiohydrolasepolymer61068706.11UniProt (Q59325)
Pfam (PF02927)
Pfam (PF00759)
Clostridium thermocellum
2B
(B)
beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranosebranched666.61In PDB
BIRD (PRD_900011)
GlyTouCan (G00025MO)
beta-cellotetraose
3C, D
(A)
CALCIUM IONnon-polymer40.12Chemie (CA)
4E
(A)
waterwater18.0387Chemie (HOH)
Sequence modifications
A: 208 - 813 (UniProt: Q59325)
PDBExternal DatabaseDetails
Gln 795Glu 589engineered mutation
Gln 814-SEE REMARK 999
Tyr 815-SEE REMARK 999
Thr 816-SEE REMARK 999
Asp 817-SEE REMARK 999
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight68706.1
BranchedNumber of molecules1
Total formula weight666.6
Non-Polymers*Number of molecules2
Total formula weight80.2
All*Total formula weight69452.9
*Water molecules are not included.

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PDB entries from 2025-07-30

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