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289901-76-4

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289901-76-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 289901-76-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,9,9,0 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 289901-76:
(8*2)+(7*8)+(6*9)+(5*9)+(4*0)+(3*1)+(2*7)+(1*6)=194
194 % 10 = 4
So 289901-76-4 is a valid CAS Registry Number.

289901-76-4Relevant articles and documents

Active-site engineering of nucleotidylyltransferases and general enzymatic methods for the synthesis of natural and "unnatural" UDP- and TDP-nucleotide sugars

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, (2008/06/13)

The present invention provides mutant nucleotidylyl-transferases, such as Ep, having altered substrate specificity; methods for their production; and methods of producing nucleotide sugars, which utilize these nucleotidylyl-transferases. The present invention also provides methods of synthesizing desired nucleotide sugars using natural and/or modified Ep or other nucleotidyltransferases; and nucleotide sugars sythesized by the present methods. The present invention further provides new glycosyl phosphates, and methods for making them.

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