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AccepTor in Medical News

Live recordings of cell communication

... it. They produce vesicles in the laboratory, which contain fluorescent donor molecules, and membranes fixed to a surface. The fixed membranes contain acceptor fluorescent molecules. Only when the two different fluorescent molecules are near to each other will light be emitted, which researchers can measure a...

The Center for the Biology of Chronic Disease Highlights Anti-Cancer Activities of the Food Extracts Quercetin, EGCG, Glycyrrhizin, and Trans-Cinnamaldehyde

...ar;51(3):603-9. Trans-Cinnamaldehyde (a compound found in the bark of cinnamon trees) 1. Cabello CM, et al. The cinnamon-derived Michael acceptor cinnamic aldehyde impairs melanoma cell proliferation, invasiveness, and tumor growth. Free Radic Biol Med. 2009 Jan 15;46(2):220-31. For details...
AccepTor in Medical Dictionary

Vesicles

...ported in the axons at a fast rate as 'empty' ... The results show that vesicles are axonally transported as preformed organelles, ... Unlabeled acceptor vesicles were prepared similarly without adding fluorescent ... The size of reconstituted vesicles was measured by dynamic light scattering as ......
AccepTor in Biological News

Caltech and UCSD researchers shed light on how proteins find their shapes

...lse excites a donor probe, which emits light and transfers that light to an acceptor probe. The distance between the donor and acceptor change as the amino-acid chain transforms itself into a three-dimensional p...

Sulfurous ping-pong in the urinary tract

... that five amino acids containing nitrogen are essential for the function of ASST. They built a reaction cage that accommodates both the donor and the acceptor of the sulfuryl group. Furthermore, during the transfer, the sulfuryl group is directly, covalently bound to a histidine side chain of ASST. Thus, the...

Researchers develop new self-training gene prediction program for fungi

...rministic. Locating the branch site which is nine nucleotides in length, almost always contains an adenine and is located 20-50 bases upstream of the acceptor site helps to accurately identify an intron. An initial run of the program with a reduced model containing heuristically defined parameters breaks...

ASU researchers synthesize molecule with self-control

... intensity increases. The ASU-designed molecule has several components including two light gathering antennas a porphyrin electron donor, a fullerene acceptor and a control unit that reversibly photoisomerizes between a dihydroindolizine (DHI) and a betaine (BT). When white light (sunlight) shines on a s...

Protein enables discovery of quantum effect in photosynthesis

...hotosynthetic systems," he and his collaborators report the detection of "quantum beating" signals, coherent electronic oscillations in both donor and acceptor molecules, generated by light-induced energy excitations, like the ripples formed when stones are tossed into a pond. Electronic spectroscopy mea...

How E. coli bacterium generates simplicity from complexity

...lectrons from food molecules and attaching them to acceptor molecules. For aerobic organisms, the final electron acceptor is usually oxygen, which is converted into water i...ptor. "We found that the type of terminal electron acceptor in the growth environment and the presence or abse...

Reversal of role for a viral protein associated with the development of lymphoma

...ith another sequence like that normally found at the end of an intron. Such a unique pairing allows a ratchetting point to function sequentially as an acceptor for splicing to an upstream exon and then as a donor for splicing to the next downstream ratchetting point or exon. As the process goes from ratchetti...

Carnegie Mellon University research reveals how cells process large genes

...ith another sequence like that normally found at the end of an intron. Such a unique pairing allows a ratchetting point to function sequentially as an acceptor for splicing to an upstream exon and then as a donor for splicing to the next downstream ratchetting point or exon. As the process goes from ratchetti...

Bad aftertaste? New sensory on/off switch may 'cure' bane of artificial sweetener search

...rewer. And from 7 to 9 p.m. Tuesday, Aug. 30, there will be two posters from the Brewer group. Miao will present "Dictating spatial organization of acceptor and donor orbitals in mixed-metal:mixed-ligand supramolecular complexes" (INOR 392), co-authored by Brewer. And Jeletic will present "Osmium(II) chrom...

Virginia Tech group adds tools to DNA-targeted anti-cancer drugs

...rewer. And from 7 to 9 p.m. Tuesday, Aug. 30, there will be two posters from the Brewer group. Miao will present "Dictating spatial organization of acceptor and donor orbitals in mixed-metal:mixed-ligand supramolecular complexes" (INOR 392), co-authored by Brewer. And Jeletic will present "Osmium(II) chrom...
AccepTor in Biological Technology

BellBrook Labs gets major research funding

...celerate development of new drugs with fewer side effects for cancer and other diseases by providing an assay that can be used with any kinase and any acceptor substrate, according to the company. BellBrook Labs develops high throughput screening tools that accelerate the discovery of more effective thera...

Monitoring fluorescence resonance energy transfer (FRET) between GFP fusions in lysates of the yeast Saccharomyces cerevisiae using the Varian Cary Eclipse

...ty and angular orientation of donor and acceptor fluorophores in living cells1. The resonant energy...uorescent proteinBFP) is absorbed by an acceptor fluorophore (green fluorescent proteinGFP) providing that donor and acceptor are in close proximity (between 1080 ngstroms2) (F...

Use of BRET2 luminescence cell-based assays with LEADseeker Multimodality Imaging System

...d the luminescence energy transfer signal from the acceptor to generate the two sets of data used for the fina...igured for donor emission at 470 nm and 535 nm for acceptor emission.

Table 1 s...ker Multimodality Imaging System for the donor and acceptor channels. Signal to noise was calculated using the...

Homogeneous, chemiluminescent kinase assay kits for assessing the functional activity of a broad range of serine-threonine and tyrosine kinases

...sed on the recombination of two inactive β-galactosidase (β-gal) fragments; complementation of the enzyme donor (ED) fragment and the enzyme acceptor (EA) fragment forms the active tetrameric β-gal (Fig 1). Subsequent hydrolysis of luminescent substrate generates a signal that can be easily rea...

Development of a sensitive enzyme fragment complementation assay for cyclic adenosine 3', 5' monophosphate and its validation for pharmacological screening at G protein-coupled receptors

...without phenol red, and EFC detection reagents (2 ×2 µl) containing labeled cAMP (enzyme donor [ED] fragment), inactive EFC enzyme (enzyme acceptor [EA] fragment), cAMP monoclonal antibody, and cell lysis reagent. Assay plates were incubated overnight before measurement on the LEADseeker Multimoda...

Performance of the AMARA HitHunter Chemiluminescence Kinase Assay with the LEADseeker Multimodality Imaging System

... enzyme donor (ED)/CLS mix was prepared by carefully mixing 1 part ED reagent with 1 part CLS and was used within 6 h.

5. The enzyme acceptor (EA) reagent was used as supplied.

Assay procedure

1. To the kinase assay wells, add 10 µl of kin...

The iCycler iQ and Amplifluor Detection Systems for Analysis of Genetically Modified Organisms in Foodstuffs, Rev A

...e reaction. The Amplifluor universal amplification and detection system (Intergen) utilizes a molecular energy transfer system that uses an acceptor moiety to quench fluorescence from an excited fluorophore (Nazarenko et al. 1997). The fluorophore (fluorescein) and quencher (D...

Real-Time PCR/Melt-Curve Analysis: SNP Detection With FRET, Rev A

...on were demonstrated. We have also demonstrated the use of other acceptor fluorophores such as Texas Red (data not shown). The iCycler iQ ...periments In the plate setup, wells should be labeled with the acceptor fluorophore, so that the filters in position 5 will be used to d...

Mammalian Expression Vectors with Interchangeable Selectable Markers

...ange core vectors are based on the pCMV-Script and pCMV-Tag vectors vectors ( Figure 1 ) that contain a LoxP site that serves as the acceptor site for the eukaryotic selectable-marker cassettes and offer a variety of expression options. The hygromycin-, puromycin-, or neomy...

High-Titer Retroviral Vectors for Gene Delivery

... 5 This extended packaging signal ( Y + ) has been incorporated into the pFB and pFB-Neo vectors. In addition, the MMLV splice acceptor (SA) sequence in pMFG has been inserted immediately downstream of the Y + . The SA splices to the natural splice do...
AccepTor in Biological Products

pSTBlue-1 AccepTor Vector Kit from Novagen

Description: Request Info...
Company:Novagen

Ribonucleic acid, transfer, phenylalanine specific from brewer's yeast from Sigma-Aldrich

Description:... Preparation Note: Prepared by method of Wimmer, E., et al., Biochemistry, 7, 2623 (1968). Quality Clarifier: acceptor Activity: approx. 1000 picomoles phenylalanine per A 260 unit (not determined by Sigma)...
Company:Sigma-Aldrich

Ribonucleic acid, transfer from baker's yeast (S. cerevisiae) from Sigma-Aldrich

Description:... Analysis Note: Evaluated for its amino acid acceptor activity using aminoacyl-tRNA synthetase and a mixture of amino acids Ala, Asp, Gly, Ile, Lys, Pro, Thr, Val, Arg, Glu, His, Leu, Phe, Ser, Tyr. Prepa...
Company:Sigma-Aldrich
AccepTor in Biological Definition

Cellular respiration

...s . Anaerobic respiration (Fermentation) " Anaerobic respiration" It does not require oxygen. True anaerobic respiration involves an electron acceptor other than oxygen. Bacteria are capable of using a wide variety of compounds as terminal electron acceptors in respiration: nitrogenous compounds (su...

Photosynthesis

...ction is as follows 2 H 2 O + 2 A > (light, chloroplasts) > 2 AH 2 + O 2 , where A is the electron acceptor. Therefore, in light the electron acceptor is reduced and oxygen is evolved. Samuel Ruben and Martin Camen used radioactive isotopes to determine that the oxygen liberated in photosynthesis ...

Light-dependent reaction

...en from water (or some other donor molecule) to an acceptor called NADP + , reducing it to the form of NADPH...its electrons, which is then captured by a primary acceptor protein. The chlorophyll's electron can follow e...plex called photosystem I, passes from the primary acceptor to ferredoxin , then to a complex of two cytochr...

Light-dependent reaction

...en from water (or some other donor molecule) to an acceptor called NADP + , reducing it to the form of NADPH...its electrons, which is then captured by a primary acceptor protein. The chlorophyll's electron can follow e...plex called photosystem I, passes from the primary acceptor to ferredoxin , then to a complex of two cytochr...

Photosynthesis

...ction is as follows 2 H 2 O + 2 A > (light, chloroplasts) > 2 AH 2 + O 2 , where A is the electron acceptor. Therefore, in light the electron acceptor is reduced and oxygen is evolved. Samuel Ruben and Martin Camen used radioactive isotopes to determine that the oxygen liberated in photosynthesis ...

Primary nutritional groups

... energy metabolism of most chemotrophic organisms are oxidation-reduction reactions in which electrons move from an electron donor to an electron acceptor . Energy is released during the reaction. Therefore, compounds used as electron donors by chemotrophs must be diverted into both energy-yielding oxid...
AccepTor in Biological Dictionary

Uracil

...NA glycosylase and analysis of the promoter function. ... Uracil pairs with adenine through hydrogen bonding. Uracil is the hydrogen bond acceptor and can form two hydrogen bonds. Uracil can also bind with a ribose. Ribose ... Encyclopedia article about uracil . Information about uracil i...

Ribosome binding site

...ome then contains three RNA binding sites , designated A, P, and E. The ... ... ribosome in a special pocket, or binding site , called the acceptor site ... The three tRNA binding sites of the ribosome —A (acceptor), P (peptidyl), and E ... 185 clones with randomized ribosome bindin...

Photosystem

...swers on APS technology and picture quality, APS mid-roll change, APS film processing, and more ... does Advanced Photo System help me ... On the acceptor side of photosystem II, we have shown that the two steps by ... brief review of photosystem II. Structure of the Photosystem II Core Subunits, ....

Initiator tRNA

... is essential for normal growth of Escherichia coli. The initiator tRNA containing the U35A36 mutation (CUA anticodon) initiates from ... ... acceptor stem and in the dihydrouridine (D) stem of the initiator tRNA (tRNAfMet) ... Initiator tRNAs are used exclusively for the initiation step ...

Hydrogen bond

...water liquid over a wider range ... Because two hydrogen atoms are involved, this is termed a dihydrogen bond . ... Co-ordinated BH3 as a proton acceptor group in hydrogen bonding " ... Hydrogen bond ... ...

Electron transport chain

... An electron transport chain couples a chemical reaction between an electron donor (such as NADH) and an electron acceptor (such as O2) to the transfer of H+ ions across a membrane, through a set of mediating biochemical... The electron transport chain in th...

Alternative splicing

...ting process that can result ... Alternative splicing is a form of epigenetic mechanism that enables a single ... Alternative donor 5'AS or acceptor 3'AS splicing together contribute to 25% of ... In this regard, alternative splicing (AS) is a key ... Alternative splicing (AS) is a fun...
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