a aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az

Перевод: adenine

аденин

Тезаурус:

1. In 1940, no one knew how the components of nucleic acids fitted together, but there was no doubt that they included certain pyrimidines (cytosine, thymine and uracil) and purines (adenine and guanine).
2. That the handle is adenine, rather than some other organic molecule, is probably a historical accident, but it is not an accident that the phosphate is attached to some characteristic molecule that the enzyme can recognize.
3. Nucleic acids are strings of four kinds of "nucleotides": each nucleotide consists of a common piece (which joins to other identical pieces to form the "string"), and, sticking out sideways, one of four different "bases" (adenine, thymine, guanine, or cytosine).
4. Glucose-6-phosphate dehydrogenase is an extremely polymorphic enzyme, essential in the metabolism of glucose and the production of reduced nicotinamide adenine dinucleotide phosphate in the hexose-monophosphate shunt, essential in the generation of reduced glutathione in the red cell for protection against oxidative stress.
5. This explains why the tool is an ATP molecule, and not a simple inorganic phosphate; the energy is in the phosphate bond, but the adenine part of the molecule is like a handle by which the enzyme can take hold.
6. The antagonist produces an antibiotic, agrocin 84, ( 2 ) which is a fraudulent adenine nucleotide.
7. This allows determination of purines protected from methylation (and therefore underrepresented in the complexed fraction) and indicates a close proximity of proteins to the bound DNA in the near vicinity or even at the N-7 or the N-3 atoms of these guanine and adenine moieties.
8. The dense bodies (250-;300 nm), so-called because of the electron-dense opaque internal content when visualized with the electron microscope, are the storage sites for 5-hydroxytryptamine, adenine nucleotides, calcium and pyrophosphate (Holmsen Weiss, 1979).
9. The oxygen is released into the atmosphere while the electrons are used to generate "reducing power" in the form of NADPH (reduced Nicotine Adenine Dinucleotide Phosphate) and "biochemical energy" in the form of ATP (adenosine triphosphate).
10. In New York Phoebus Levene (1869-;1940) produced a definite theory of their structure, based on units which contained one each of the four bases adenine and guanine (purines) and cytidine and uridine (pyrimidines).
11. On any given strand, the bases can be in any order, but there are rules governing the pairing between the bases on the one strand and those on the other; adenine always pairs with thymine, and guanine with cytosine.
12. After a reprecipitation step, the pellets are rinsed twice with 80% ethanol to wash trapped traces of reagents, vacuum-dried, and subjected to standard cleavage reaction by heating in either piperidine (strand scission at the level of guanine residues) or NaOH (strand scission at the level of adenine and guanine residues) (1, 5).
13. These cells may be important modulators of platelet function in vivo through their ability to take up adenine nucleotides and synthesize and release regulatory prostaglandins (Roos Pfleger, 1972; Blackwell et al, 1978).