Inhibition of the Incorporation of Chloride into the Tetracycline Molecule

نویسندگان

  • J. J. GOODMAN
  • J. R. D. McCORMICK
چکیده

Bromide and thiocyanate have been shown to be effective inhibitors of the chlorination process leading to chlortetracycline formation by certain strains of Streptomyces aureofaciens Duggar (Gourevitch et al., 1955; Doerschuk, et at., 1956). Sekizawa (1955) reported thiourea, 2-thiouracil, 2-mercaptobenzothiazole, and thioglycolic-f3-aminonaphthalide (thionalide) to inhibit chlorination by this organism leading to the production of tetracycline rather than chlortetracyline. The present paper summarizes the work in our laboratories on the effectiveness of a number of compounds, some of which have antithyroid activity (Astwood et al., 1945) as chlorination inhibitors in an S. aureofaciens chlortetracycline synthesizing system.'

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Characterization of biophysical properties of single chloride channel in rat brain mitochondrial inner membrane by channel incorporation into bilayer lipid membrane

Introduction: Recent studies have shown the presence of Cl- channels in heart and liver mitochondrial membranes. In this work, we have characterized the functional profile of a Cl- channel from rat brain mitochondria. Methods: After removing and homogenizing the rat brain, the supernatant was separately centrifuged in MSEdigitonin, H2O and Na2CO3 and mitochondrial inner membrane vesicles wer...

متن کامل

SIMULATION OF TETRACYCLINE ONTO GRAPHENE NANO SHEET

Tetracycline (TC) is a broad spectrum of antibiotic which is used to cure infectious diseases and cancer. It can cause harmful side effects due to its high absorption in all organs. On the other hand graphene is appropriate to carry drug and release it to special target, organ or cell. It may decrease the side effects of the drug dramatically by using low dosage of medicine. Graphene oxide (GO)...

متن کامل

Effects of Aluminum Incorporation in Tobermorite Structure on Chloride Diffusion: A Molecular Dynamics Simulation Study

In this paper, the effects of different aluminum to silicon ratios in silicate chains of calcium silicate hydrates (C-S-H) are evaluated on the diffusion coefficient of chloride ions by molecular dynamics method. Tobermorite is a crystalline phase that is used for studying C-S-H properties in nano scale, because of its analogous chemical composition to C-S-H. Aluminum incorporation in C-S-H and...

متن کامل

Inhibition of the incorporating of chloride into the tetracycline molecule.

Bromide and thiocyanate have been shown to be effective inhibitors of the chlorination process leading to chlortetracycline formation by certain strains of Streptomyces aureofaciens Duggar (Gourevitch et al., 1955; Doerschuk, et at., 1956). Sekizawa (1955) reported thiourea, 2-thiouracil, 2-mercaptobenzothiazole, and thioglycolic-f3-aminonaphthalide (thionalide) to inhibit chlorination by this ...

متن کامل

Study of Aptamer-Attached Juglone in Different pH Ranges and Ionic Concentrations of Buffers

    Electrochemical aptamer-based sensors attract a lot of interest as useful methods because of their low cost, accuracy, sensitivity, and simplicity. An electro-active redox molecule comprises the main part of the electrochemical-based sensors. Ferrocene is one of the most popular redox molecule used in biosensor fabrication. But, instability of ferrocenium ion in strong nucleophilic reagents...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003