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1.1.99.18: cellobiose dehydrogenase (acceptor)

This is an abbreviated version!
For detailed information about cellobiose dehydrogenase (acceptor), go to the full flat file.

Word Map on EC 1.1.99.18

Reaction

cellobiose
+
acceptor
=
cellobiono-1,5-lactone
+
reduced acceptor

Synonyms

cbdA, CBO, CBOR, Cdh, CDH IIA, CDH IIB, cdh-1, CDH1, Cdh2, CDHIIA, cellobiose (acceptor) 1-oxidoreductase, cellobiose dehydrogenase, cellobiose dehydrogenase IIA, cellobiose oxidase, cellobiose oxidoreductase, cellobiose [acceptor] 1-oxidoreductase, Cellobiose-quinone oxidoreductase, cellobiose:(acceptor) 1-oxidoreductase, cellobiose:quinone oxidoreductase, cellobiose:[acceptor] 1-oxidoreductase, DCHsr, dehydrogenase, cellobiose, EC 1.1.3.25, EC 1.1.5.1, MtCDH, oxidase, cellobiose, Thite_59724, TpCDH, TvCDH

ECTree

     1 Oxidoreductases
         1.1 Acting on the CH-OH group of donors
             1.1.99 With unknown physiological acceptors
                1.1.99.18 cellobiose dehydrogenase (acceptor)

General Stability

General Stability on EC 1.1.99.18 - cellobiose dehydrogenase (acceptor)

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GENERAL STABILITY
ORGANISM
UNIPROT
LITERATURE
enzyme reduced by cellobiose is more stable than the nonreduced form
-
glucose and lactulose have a high lyoprotective effect while loss of enzyme activity is high (77%) when using no additives
-
presence of 2,6-dichlorophenol indophenol decreases stability eight times at pH 6.0
-
stable to repeated freezing and thawing
-
the CDH electrodes based on the electrosynthesised polyaniline modified surface is 5 times more stable compared to CDH adsorbed on the plain screen printed electrodes
Thermothelomyces myriococcoides
-
the enzyme contains a protease-sensitive linker region, can be cleaved by endogenous proteases into a catalytically active flavin fragement and an inactive haem domain. Cleavage can be prevented by using increased concentrations of peptone or certain amino acids such as Val or Leu
-
the presence of polysaccharide preparations enhances the stability of cellobiose dehydrogenase compared to the control value at 4°C. The highest stabilization effect is observed for the enzyme modified with Rh110EPS