Bu çalışmada Kahramanmaraş’da satışa sunulan 30 adet lor peyniri örneği mikrobiyolojik olarak incelenmiş Esherichia coli ve Klebsiella pneumoniae’nın varlığı araştırılmıştır antibiyotik dirençlilikleri belirlenmiştir. Sonuçlara göre 74 E.coli suşu tanımlanırken 17 K. pneumoniae saptanmıştır. Çalışmamızda izole edilen suşlarında, cefuroxime %88’lik bir oranda direnç tespit edilmiştir. Diğer anti...

Objective: This research is aimed to determine antibacterial activity of some solvents of raw propolis extracts of Trigona sp from Sulawesi, Indonesia and compare it with antibacterial activities of ethanolic and aqueous extracts. Methods: Propolis samples were extracted with water, ethanol, propylene glycol, olive oil, and Virgin Coconut Oil (VCO). An agar-well diffusion assay was used to eval...

In 2006, a severe foodborne EHEC outbreak occured in Norway. Seventeen cases were recorded and the HUS frequency was 60%. The causative strain, Esherichia coli O103:H25, is considered to be particularly virulent. Sequencing of the outbreak strain revealed resemblance to the 2011 German outbreak strain E. coli O104:H4, both in genome and Shiga toxin 2-encoding (Stx2) phage sequence. The nucleoti...

Heterocyclic compounds containing a pyrimidine nucleus are of special interests due to their applications in medicinal chemistry as they are the basic skeleton of several bioactive compounds such as antifungal, antibacterial, antitumor and antitubercular. As a part of our research in the synthesis of pyrimidine derivatives containing biological activities, some new tetrahydropyrimidine derivati...

Adhesins mediate the introduction of bacteria to the host in the sometimes life-long relationship of uropathogenic Esherichia coli (UPEC) and the human urinary tract. As a class of extracellular proteins, adhesins enable bacteria to adhere to and, in some cases, invade host tissue; adhesins render UPEC virulent and permit host colonization. Adhesin receptor interactions at the host interface de...

Searching for homologous DNA molecules, pairing of the molecules and exchange of the strand with one of a counterpart duplex molecule are a central process for homologous recombination. RecA protein in Esherichia coli has been known to play a pivotal role in the processes. The recA gene was identified by A.J. Clark and his colleagues more than w x 30 years ago 1 and the first biochemical activi...

Heterocyclic compounds containing a pyrimidine nucleus are of special interests thanks to their applications in medicinal chemistry as they are the basic skeleton of several bioactive compounds such as antifungal, antibacterial, antitumor and antitubercular. As a part of our research in the synthesis of pyrimidine derivatives containing biological activities, some new tetrahydropyrimidine deriv...

Ribonuclease P (RNase P) is involved in the processing of the 5' leader sequence of precursor tRNA (pre-tRNA). We have found that RNase P RNA (PhopRNA) and five proteins (PhoPop5, PhoRpp21, PhoRpp29, PhoRpp30, and PhoRpp38) reconstitute RNase P activity with enzymatic properties similar to those of the authentic ribozyme from the hyperthermophilic archaeon Pyrococcus horikoshii OT3. We report h...