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Acidic water stress polypeptides (Wsp) with molecular masses of 33, 37 and 39 kDa are the most abundant soluble proteins in the cyanobacterium Nostoc commune. Wsp polypeptides and UV-A/B-absorbing pigments are secreted by cells, accumulate in the extracellular glycan sheath, and are released from desiccated colonies upon rehydration. No evidence was(More)
Using the nucleoside analogue EdU (5-ethynyl-2'-deoxyuridine) for thymidine substitution instead of BrdU (5-bromo-2'-deoxyuridine) in cell proliferation assays has recently been proposed. However, the effect of EdU on cell viability, DNA synthesis, and cell cycle progression and consequently its usability for dynamic cell proliferation analysis in vitro has(More)
The glbN gene of Nostoc commune UTEX 584 is juxtaposed to nifU and nifH, and it encodes a 12-kDa monomeric hemoglobin that binds oxygen with high affinity. In N. commune UTEX 584, maximum accumulation of GlbN occurred in both the heterocysts and vegetative cells of nitrogen-fixing cultures when the rate of oxygen evolution was repressed to less than 25(More)
The TNF alpha receptor is a major therapeutic target since over production of TNF alpha plays a key role in the development of septic shock following bacterial infection and has been implicated in the pathogenesis of many inflammatory disorders such as rheumatoid arthritis. To screen our NATCHEM Libraries for novel natural product inhibitors of this target(More)
The involvement of beta-amyloid (Abeta) in the pathogenesis of Alzheimer's disease (AD) has been well documented. In addition, a significant degree of information has been documented regarding the genetics of Abeta production and aggregation in familial forms of AD (FADs). However, the information regarding the causes or mechanism(s) responsible for Abeta(More)
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