[permalink] [id link]
* Depurination – Loss of a purine base ( A or G ) to form an apurinic site ( AP site ).
from
Wikipedia
Some Related Sentences
Depurination and purine
Depurination is not uncommon because purine is a good leaving group via the 9N-nitrogen ( see the structure of a purine ).
– and Loss
| Loss || 49 – 6 – 3 || Dakota Stone || TKO Loss ( 6 ) || 6 || June 4, 2011 || Los Angeles, CA, USA || align = left |
| Loss || 46 – 5 – 2 || Angelica Martinez || Split decision || 10 || October 6, 2006 || Worley, Idaho, USA ||
| Loss || 46 – 4 – 2 || Holly Holm || Unanimous decision || 10 || September 16, 2005 || Albuquerque, New Mexico, USA ||
| Loss || 45 – 3 – 2 || Laila Ali || KO || 4, 0: 28 || August 23, 2003 || Biloxi, Mississippi, USA || align = left |
| Loss || 36 – 2 – 2 || Sumya Anani || Majority decision || 10 || December 18, 1998 || Fort Lauderdale, Florida, USA ||
| Loss || 2 – 1 – 1 || Andrea DeShong || Decision || 5 || November 4, 1989 || Bristol, Tennessee, USA ||
– and purine
These include inhibitors of oxidosqualenecyclase and squalene synthase, cysteine protease inhibitors, dermaseptins collected from frogs in the genus Phyllomedusa ( P. oreades and P. distincta ), the sesquiterpene lactone dehydroleucodine ( DhL ), which affects the growth of cultured epimastigote – phase Trypanosoma cruzi, inhibitors of purine uptake, and inhibitors of enzymes involved in trypanothione metabolism.
Apart from the Miller – Urey experiment, the next most important step in research on prebiotic organic synthesis was the demonstration by Joan Oró that the nucleic acid purine base, adenine, was formed by heating aqueous ammonium cyanide solutions.
In Lesch – Nyhan syndrome, the defective gene is that for hypoxanthine-guanine phosphoribosyltransferase ( HPRT ), a participant in the ' recycling ' of purine nucleotides.
This drug is a nucleotide precursor that provides a readily absorbed purine, which is known to be transported across the blood – brain barrier.
A Hoogsteen base pair applies the N7 position of the purine base ( as a hydrogen bond acceptor ) and C6 amino group ( as a donor ), which bind the Watson-Crick ( N3 – N4 ) face of the pyrimidine base.
– and base
* 1914 – World War I: First Battle of the Atlantic – two days after the United Kingdom had declared war on Germany over the German invasion of Belgium, ten German U-boats leave their base in Heligoland to attack Royal Navy warships in the North Sea.
The following year he decreased the amount of base metal in the denarius while adding more silver – raising the silver purity and weight again to 50. 5 % and 1. 50 grams.
* 2000 – Second Battle of Elephant Pass: Tamil Tigers capture a strategic Sri Lankan Army base and hold it for 8 years.
It was the largest of the German concentration camps, consisting of Auschwitz I ( the Stammlager or base camp ); Auschwitz II – Birkenau ( the Vernichtungslager or extermination camp ); Auschwitz III – Monowitz, also known as Buna – Monowitz ( a labor camp ); and 45 satellite camps.
416 of these are in the 824 – 849 MHz range for transmissions from mobile stations to the base stations, paired with 416 frequencies in the 869 – 894 MHz range for transmissions from base stations to the mobile stations.
Despite several differences in definitions, their importance becomes apparent as different methods of analysis when applied to acid – base reactions for gaseous or liquid species, or when acid or base character may be somewhat less apparent.
The Arrhenius definition of acid – base reactions is a development of the hydrogen theory of acids, devised by Svante Arrhenius, which was used to provide a modern definition of acids and bases that followed from his work with Friedrich Wilhelm Ostwald in establishing the presence of ions in aqueous solution in 1884, and led to Arrhenius receiving the Nobel Prize in Chemistry in 1903 for " recognition of the extraordinary services ... rendered to the advancement of chemistry by his electrolytic theory of dissociation ".
As defined by Arrhenius, acid – base reactions are characterized by Arrhenius acids, which dissociate in aqueous solution to form hydrogen ions (), and Arrhenius bases, which form hydroxide () ions.
More recent IUPAC recommendations now suggest the newer term " hydronium " be used in favor of the older accepted term " oxonium " to illustrate reaction mechanisms such as those defined in the Brønsted – Lowry and solvent system definitions more clearly, with the Arrhenius definition serving as a simple general outline of acid – base character.
The universal aqueous acid – base definition of the Arrhenius concept is described as the formation of water from a proton and hydroxide ions, or hydrogen ions and hydroxide ions from the dissociation of an acid and base in aqueous solution:
Board game with inlays of ivory, rock crystal and glass paste, covered with gold and silver leaf, on a wooden base ( Knossos, Minoan chronology | New Palace period 1600 – 1500 B. C., Heraklion Archaeological Museum, Crete )
But the tactic fell into relative disuse after Babe Ruth introduced the era of the home run – in 1955, for example, no one in baseball stole more than 25 bases, and Dom DiMaggio won the AL stolen base title in 1950 with just 15.
– and G
The debate continues unabated – e. g. S. Georg 2004, A. Vovin 2005, S. Georg 2005 ( anti-Altaic ); S. Starostin 2005, V. Blažek 2006, M. Robbeets 2007, A. Dybo and G. Starostin 2008 ( pro-Altaic ).
* 1865 – Charles G. Dawes, American general and politician, 30th Vice President of the United States, Nobel Prize laureate ( d. 1951 )
In 1896 England under the captaincy of W G Grace won the series 2 – 1, and this marked the end of England's longest period of Ashes dominance.
* 1923 – As vice president, Calvin Coolidge becomes the 30th President of the United States after the death of Warren G. Harding
It has been edited by G. Waitz and published in the Monumenta Germaniae Historica: Scriptores, Band xxvi ( Hanover and Berlin, 1826 – 1892 ).
Seven Republican senators – William Pitt Fessenden, Joseph S. Fowler, John B. Henderson, Lyman Trumbull, Peter G. Van Winkle and notably Senators Grimes and Ross played a decisive role ; purportedly disturbed by how the proceedings had been manipulated to give a one-sided presentation of the evidence, they voted against conviction, in defiance of their party and public opinion.
* Reale, G., ( 1990 ), A History of Ancient Philosophy IV: The Schools of the Imperial Age, SUNY Press, pp. 297 – 303.
Albert Goodwill Spalding ( Byron, Illinois September 2, 1850 – September 9, 1915 in Point Loma, San Diego, California ) was a professional baseball player, manager and co-founder of A. G. Spalding sporting goods company.
* John G. Webster-Professor Emeritus at the University of Wisconsin – Madison, a pioneer in the field of instrumentation amplifiers for the recording of electrophysiological signals
0.236 seconds.