Background & Aim: Lemon verbena (Lippia citriodora H.B.K.) is a richly scented herb and has a long history as a sacred and medicinal plant. Select an appropriate medium in tissue culture is a necessity for success Experimental: To evaluate the effect of 10 medium of previous researches for Lippia micropropagation (1- MS medium supplemented with BAP (3 mgL-1) + IBA ...

Background. Enzyme prodrug therapy is a promising strategy to treat solid malignancies. The utilization of two-component systems, including an enzyme and non-toxic prodrug, generate cytotoxic compounds directly at the surface tumor cell can be successful in reducing overall toxic load on body. Aim. To determine antitumor activity pharmacological pair C115H methionine γ-lyase (C115H MGL) conjuga...

In this study, eight different surface water resources located in five villages of Gölcük, Kocaeli, were tested between June 1999 and 2000 to determine the NO 3 -N, Cl and pH values. Temporal variation in these parameters reflects changes in precipitation. The test results showed that the NO 3 -N, Cl and pH levels varied between 0.65-0.11 mgL, 0.54-0.04 mgL and 8.33-5.15, respectively. Data sho...

L-Methionine gamma-lyase (MGL) catalyzes the pyridoxal 5'-phosphate (PLP) dependent alpha,gamma-elimination of L-methionine. We have determined two crystal structures of MGL from Pseudomonas putida using MAD (multiwavelength anomalous diffraction) and molecular replacement methods. The structures have been refined to an R-factor of 21.1% at 2.0 and 1.7 A resolution using synchrotron radiation d...

The second messenger hydrogen peroxide transduces changes in the cellular redox state by reversibly oxidizing protein cysteine residues to sulfenic acid. This signaling event regulates many cellular processes but has never been shown to occur in the brain. Here, we report that hydrogen peroxide heightens endocannabinoid signaling in brain neurons through sulfenylation of cysteines C201 and C208...

The present investigation was carried out to study the In vitro shoot multiplication and callogenesis in Gladiolus. For this purpose, cormel, meristem and leaf explants were chosen. Different concentrations of BAP i. e., 0.5, 1.0, 1.5, 2.0 or 2.5 mgL (2.22, 4.44, 6.66, 8.88 or 11.10 μM) were supplemented to MS medium. Both cormel and meristem explants showed maximum multiplication on MS medium ...

In Escherichia coli, several systems are known to transport glucose into the cytoplasm. The main glucose uptake system under batch conditions is the glucose phosphoenolpyruvate:carbohydrate phosphotransferase system (glucose PTS), but the mannose PTS and the galactose and maltose transporters also can translocate glucose. Mutant strains which lack the enzyme IIBC (EIIBC) protein of the glucose...

Cucumis melo L. is one of the most economically important horticultural crops worldwide. However,   low plant regeneration frequency of this plant during genetic transformation is  the  major hurdle for  applying biotechnological approaches. Hence, this study aimed to evaluate the effect of 6-benzyladenine (BA), cefotaxime (CTX), kanamycin (KAN), and indole-3-acetic acid (IAA) on the regenerati...