Endoglucanase_SS

Cellulose 1,4-β-cellobiosidase (reducing end)

Cellulose 1,4-β-cellobiosidase (reducing end)

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Cellulose 1,4-β-cellobiosidase (reducing end) (EC 3.2.1.176, CelS, CelSS, endoglucanase SS, cellulase SS, cellobiohydrolase CelS, Cel48A) is an enzyme with systematic name 4-beta-D-glucan cellobiohydrolase (reducing end).[1][2] This enzyme catalyses the following chemical reaction

Hydrolysis of (1->4)-beta-D-glucosidic linkages in cellulose and similar substrates, releasing cellobiose from the reducing ends of the chains.
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The CelS enzyme from Clostridium thermocellum is the most abundant subunit of the cellulosome formed by the organism.

References

  1. [1]
    Barr BK, Hsieh YL, Ganem B, Wilson DB (January 1996). "Identification of two functionally different classes of exocellulases". Biochemistry. 35 (2): 586–92. doi:10.1021/bi9520388. PMID 8555231.
  2. [2]
    Saharay M, Guo H, Smith JC (October 2010). "Catalytic mechanism of cellulose degradation by a cellobiohydrolase, CelS". PLOS ONE. 5 (10): e12947. doi:10.1371/journal.pone.0012947. PMC 2953488. PMID 20967294.
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