Point Mutations in thefolPGene Partly Explain Sulfonamide Resistance ofStreptococcus mutans

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Point Mutations in the folP Gene Partly Explain Sulfonamide Resistance of Streptococcus mutans

Cotrimoxazole inhibits dhfr and dhps and reportedly selects for drug resistance in pathogens. Here, Streptococcus mutans isolates were obtained from saliva of HIV/AIDS patients taking cotrimoxazole prophylaxis in Uganda. The isolates were tested for resistance to cotrimoxazole and their folP DNA (which encodes sulfonamide-targeted enzyme dhps) cloned in pUC19. A set of recombinant plasmids carr...

متن کامل

Mutations to sulfonamide resistance in Staphylococcus aureus.

T WO general hypotheses have been postulated to explain the origin of drug-resistant strains of bacteria. These hfiotheses are: (I) Resistant cells arise by mutation and are selected when grown in the presence of drugs. (2) Resistance is the result of a specific adaptation of bacteria in response to inhibiting agents. Resistance of Escherickia coli to bacteriophage (LTJRIA and DELBR~CK, 1943) r...

متن کامل

Sulfonamide-resistant Staphylococci: Correlation of in Vitro Sulfonamide-resistance with Sulfonamide Therapy.

A feature of sulfonamide therapy for bacterial infections is that species of bacteria differ in their resistance to the antibacterial action of the compounds. It is also recognized that strains of microorganisms within the same species display variations in susceptibility. A disconcerting and confusing factor associated with chemotherapy, which appears to be assuming increasing clinical signifi...

متن کامل

Sulfonamide Resistance of Clostridium Sporogenes.

Bacteria which are sulfonamide-sensitive have been reported to be incapable of the rapid utilization of folic acid for inhibition reversal (Alimchandani and Sreenivasan, J. Bacteriol. 73:538, 1957; Krieg and Pelczar, J. Bacteriol. 80:242, 1960; Davis and Feingold, p. 343. In I. C. Gunsalus and R. Y. Stanier [ed.], The Bacteria, vol. 4, Academic Press, Inc., New York, 1962), presumably because o...

متن کامل

Point-Mutations in embB306 Gene and Their Association with Resistance to Ethambutol in Mycobacterium tuberculosis in Clinical Isolates

Background & Objective: Mutations in embB306 gene and their association with resistance to ethambutol (EMB) in Mycobacterium tuberculosis (M. tuberculosis) have not been fully investigated. The aim of this study was to investigate the point-mutations in emb306B gene and their association with resistance to EMB in M. tuberculosis. Materials & Methods: This case (M. tuberculosis resistant to EMB...

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

ژورنال

عنوان ژورنال: International Journal of Microbiology

سال: 2013

ISSN: 1687-918X,1687-9198

DOI: 10.1155/2013/367021