Nurcan Vardar

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Small artificial lakes are ubiquitous in various natural environments. Small impoundments increase the residence time of water, thereby increasing the potential for retention of nutrients through biological and physical processes. We examined bacterial community structure of Lake Maslak, a small freshwater impoundment located in a densely populated region.(More)
Structural analysis of toluene-o-xylene monooxygenase (ToMO) hydroxylase revealed the presence of three hydrophobic cavities, a channel, and a pore leading from the protein surface to the active site. Here, saturation mutagenesis was used to investigate the catalytic roles of alpha-subunit (TouA) second cavity residue L95 and TouA channel residues Q204,(More)
A beta-lactamase gene was isolated for the first time from a terrestrial subsurface environment using a combined cultivation and direct cloning strategy. The gene, discovered from 24 m below land surface in Hawaii, was most similar to the penicillinase from Bacillus licheniformis. The resistance gene was confirmed via subcloning and its minimum inhibitory(More)
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