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20246-37-1

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20246-37-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20246-37-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,4 and 6 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20246-37:
(7*2)+(6*0)+(5*2)+(4*4)+(3*6)+(2*3)+(1*7)=71
71 % 10 = 1
So 20246-37-1 is a valid CAS Registry Number.

20246-37-1Relevant articles and documents

Jackson,Hudson

, p. 1270 (1930)

Substrate specificity of galactokinase from Streptococcus pneumoniae TIGR4 towards galactose, glucose, and their derivatives

Zou, Yang,Wang, Wenjun,Cai, Li,Chen, Leilei,Xue, Mengyang,Zhang, Xiaomei,Shen, Jie,Chen, Min

, p. 3540 - 3543 (2012/07/03)

Galactokinases (GalKs) have attracted significant research attention for their potential applications in the enzymatic synthesis of unique sugar phosphates. The galactokinase (GalKSpe4) cloned from Streptococcus pneumoniae TIGR4 presents a remarkably broad substrate range including 14 diverse natural and unnatural sugars. TLC and MS studies revealed that GalKSpe4 had relaxed activity towards galactose derivatives with modifications on the C-6, 4- or 2-positions. Additionally, GalKSpe4 can also tolerate glucose while glucose derivatives with modifications on the C-6, 4- or 2-positions were unacceptable. More interestingly, GalKSpe4 can phosphorylate l-mannose in moderate yield (43%), while other l-sugars such as l-Gal cannot be recognized by this enzyme. These results are very significant because there is rarely enzyme reported that can phosphorylate such uncommon substrates as l-mannose.

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