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18684-29-2

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18684-29-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18684-29-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,6,8 and 4 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 18684-29:
(7*1)+(6*8)+(5*6)+(4*8)+(3*4)+(2*2)+(1*9)=142
142 % 10 = 2
So 18684-29-2 is a valid CAS Registry Number.

18684-29-2Downstream Products

18684-29-2Relevant articles and documents

Characterization of pyrimidine nucleoside phosphorylase of Mycoplasma hyorhinis: Implications for the clinical efficacy of nucleoside analogues

Vande Voorde, Johan,Gago, Federico,Vrancken, Kristof,Liekens, Sandra,Balzarini, Jan

experimental part, p. 113 - 123 (2012/10/23)

In the present paper we demonstrate that the cytostatic and antiviral activity of pyrimidine nucleoside analogues is markedly decreased by a Mycoplasma hyorhinis infection and show that the phosphorolytic activity of the mycoplasmas is responsible for this. Since mycoplasmas are (i) an important cause of secondary infections in immunocompromised (e.g. HIV infected) patients and (ii) known to preferentially colonize tumour tissue in cancer patients, catabolic mycoplasma enzymesmay compromise efficient chemotherapy of virus infections and cancer. In the genome of M. hyorhinis, a TP (thymidine phosphorylase) gene has been annotated. This gene was cloned, expressed in Escherichia coli and kinetically characterized. Whereas the mycoplasma TP efficiently catalyses the phosphorolysis of thymidine (Km = 473 μM) and deoxyuridine (Km = 578 μM), it prefers uridine (K m =92 μM) as a substrate. Our kinetic data and sequence analysis revealed that the annotated M. hyorhinis TP belongs to the NP (nucleoside phosphorylase)-II class PyNPs (pyrimidine NPs), and is distinct from the NP-II class TP and NPI class UPs (uridine phosphorylases). M. hyorhinis PyNP also markedly differs from TP and UP in its substrate specificity towards therapeutic nucleoside analogues and susceptibility to clinically relevant drugs. Several kinetic properties of mycoplasma PyNP were explained by in silico analyses. The Authors Journal compilation

Fluorinase-coupled base swaps: Synthesis of [18F]-5′- deoxy-5′-fluorouridines

Winkler, Margit,Domarkas, Juozas,Schweiger, Lutz F.,O'Hagan, David

supporting information; experimental part, p. 10141 - 10143 (2009/05/30)

(Chemical Equation Presented) Making F-ases: One-pot fluorination/base-swap biotransformations were developed by coupling the fluorinase enzyme to nucleoside phosphorylases to generate 5′-deoxy-5′-fluoronucleosides (FDAs). These biotransformations are amenable to radiolabeling syntheses starting from [18F]fluoride ion, as exemplified by the synthesis of [18F]-5′-deoxy-5′-fluorouridines (see scheme), and demonstrate a new application of fluorinase as a catalyst for 18F-C bond formation.

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