نتایج جستجو برای: phosphate pigment

تعداد نتایج: 129968  

Journal: :Current Biology 1996
Ian Duncan I J Duncan D E G Briggs

Fossilized insects are normally two-dimensional, because the exoskeleton tends to collapse during decay. The remarkable specimens shown above have been preserved in three dimensions because of the unusual conditions under which they formed. The images are scanning electron micrographs of the eyes of fossilized beetles from the Tertiary period, found in limestone at a site in northwest Queenslan...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2013
azra arab majid talebi badraldin ebrahim sayed tabatabaei mehdi rahimmalek

background & aim: the pigments inside the leaf chloroplasts receive sunlight energy and transport it to photosynthesis reaction center. the most important of these pigments is chlorophyll. in this study, the pigments existence in medicinal plant, sumac (rhus coriaria l.), was investigated at biotechnology laboratory, isfahan university of technology. experimental: experiments were performed...

Journal: :Journal of bacteriology 2007
Tatsuichiro Higashi Yuko Iwasaki Yasuo Ohnishi Sueharu Horinouchi

Grixazone (GX), which is a diffusible yellow pigment containing a phenoxazinone chromophore, is one of the secondary metabolites under the control of A-factor (2-isocapryloyl-3R-hydroxymethyl-gamma-butyrolactone) in Streptomyces griseus. GX production is also induced by phosphate starvation. The whole biosynthesis gene cluster for GX was cloned and characterized. The gene cluster consisting of ...

Journal: :Aktuelle Dermatologie 2006

A. Papi, J. Naghibozakerin, M. Soheilian, M. H. Dehghan,

 Abstract Background: Transpupillary thermotherapy is a new treatment for subfoveal choroidal neovascularization which needs further evaluation. This study was aimed to evaluate the efficacy of transpupillary thermotherapy on regression of occult subfoveal choroidal neovascularization with or without pigment epithelial detachment in patients with age-related macular degeneration. Methods: In a ...

Journal: :iranian journal of science and technology (sciences) 2007
b. haghighi

glucose 6- phosphate dehydrogenase from streptomyces aureofaciens was purified andinactivated by pyridoxal 5′-phosphate (plp). the inactivation was a pseudo-first order and time-dependentreaction. complete inactivation was achieved at 0.2mm plp within 16 minutes. the type of inhibition wascompetitive with respect to glucose 6- phosphate. spectral characteristics of plp-enzyme complexcorresponde...

Journal: :iranian journal of science and technology (sciences) 2004
b. haghighi

interaction of glucose 6-phosphate dehydrogenase from s. aureofaciens with nad+, nadp+and glucose 6-phosphate were investigated using different fluorescent probes. binding of nad+, nadp+and s-nadph to the native enzyme quenched intrinsic protein fluorescence by 100%, 10% and 21%,respectively, from which kd values of nad+ (6.5 mm), nadp+ (92.0 μm) and s-nadph (122.0 μm)were calculated. binding o...

2017
Ryo Terao Megumi Honjo Makoto Aihara

Sphingosine 1-phosphate (S1P) is a potent lipid mediator that modulates inflammatory responses and proangiogenic factors. It has been suggested that S1P upregulates choroidal neovascularization (CNV) and may be deeply involved in the pathogenesis of exudative age-related macular degeneration (AMD). Recent studies have suggested that apolipoprotein M (ApoM), a carrier protein for S1P, modulates ...

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