Enzymes and Coenzymes Commons^™

Determination Of Important Ligand Sites For The Interaction With Aminoglycoside Acetyltransferase(3)-Iiib By Nmr, Katherine Jane Woodruff

Chancellor’s Honors Program Projects

No abstract provided.

Mechanisms Of Oxidant Generation By Catalase, Diane E. Heck, Michael Shakarjian, Hong-Duck Kim, Jeffrey Laskin, Anna M. Vetrano

NYMC Faculty Publications

The enzyme catalase converts solar radiation into reactive oxidant species (ROS). In this study, we report that several bacterial catalases (hydroperoxidases, HP), including Escherichia coli HP-I and HP-II also generate reactive oxidants in response to ultraviolet B light (UVB). HP-I and HP-II are identical except for the presence of NADPH. We found that only one of the catalases, HPI, produces oxidants in response to UVB light, indicating a potential role for the nucleotide in ROS production. This prompts us to speculate that NADPH may act as a cofactor regulating ROS generation by mammalian catalases. Structural analysis of the NADPH domains …

Interconversion Of The Specificities Of Human Lysosomal Enzymes, Ivan B. Tomasic

Masters Theses 1911 - February 2014

Fabry disease (FD) is an X-linked recessive lysosomal storage disorder (LSD) known to affect approximately 1 in every 40,000 males, and a smaller number of females. FD results from a deficiency of functional α-galactosidase (α-GAL), which leads to the accumulation of terminally α-galactosylated substrates in the lysosome. The predominant treatment is Enzyme Replacement Therapy (ERT), requiring the regular infusion of recombinant human α-GAL. More than half of individuals receiving ERT experience a range of adverse infusion reactions, and it has been reported that as many as 88% of patients receiving ERT develop neutralizing IgG antibodies against the drug.

In aim …

Pompe’S Disease And The Effects Of Alpha-Glucosidase Deficiency, Aaron Richler

The Science Journal of the Lander College of Arts and Sciences

The following is an excerpt from the introduction of this article: The energy that the body needs in order to function is obtained from carbohydrates that we get through our diet. These carbohydrates are monosacharides, disaccharides and polysacharides. The polysaccharides and disaccharides are hydrolyzed to monosaccharide’s such glucose (which comprises roughly 80%) fructose and galactose. Most cells convert the fructose and galactose to glucose. The body can use the glucose or store it. If energy is needed, glucose can be oxidized through the many reactions of glycolysis which gives a net production of 2 ATP and 2 NADH from one …

Paraoxonase 1 Activity As A Predictor Of Cardiovascular Disease In Type 2 Diabetes, Rozaida @ Poh Yuen Ying

Rozaida @ Poh Yuen Ying

The role of paraoxonase 1 in cardiovascular disease complications in type 2 diabetes mellitus is not fully understood. We studied paraoxonase activity towards paraoxon in 188 non-diabetic and 140 diabetic subjects using general linear models and univariate analysis. Adjusting for age revealed a reduction in activity towards paraoxon was associated with a significant increase in risk (p=0.023) for cardiovascular disease complications in diabetic patients. Multivariate analysis of two plasma measures of paraoxonase activity using paraoxon and diazoxon also showed reduced paraoxonase activity towards paraoxon was associated with a significant increase in risk (p=0.045) for cardiovascular disease complications in diabetic patients. …