Nitrogenous bases are organic molecules bound to nitrogen are building blocks of nucleotide monomers, which in turn forms DNA and RNA polymers. There are two groups of nitrogenous bases: purines, and pyrimidines. Purine bases i...
Purines are the most abundant N heterocyclic compounds in nature and are found in nucleic acids (DNA, RNA) and many other cellular components, such as ATP, GTP or NADH (Werner and Witte 2011). Plants undergo the complete breakdown of the purine ring via a catabolic pathway enabling the rec...
Our results unveil a striking difference in BER between human and the yeast mitochondria.doi:10.1016/j.dnarep.2010.09.020Shisheng LiElsevier B.V.Dna RepairLi, S. (2011) N-Methylpurines are heterogeneously repaired in human mitochondria but not evidently repaired in yeast mitochondria. DNA Re- ...
-_CoMeuences of ical modificaton: circalar dichroism of the Alterations in CD spettra are found in G-c ontaining oligo- ribonueleotides after modification; with kethoxal (C-.ethoxy--o( -.ktobutyS4dede). Stacking int... 被引量: 0发表: 0年研究...
Which of the following are purines? A. Adenine B. Cytosine C. Guanine D. Thymine Which of the following will not be found in DNA? a. ribose b. adenine c. thymine d. guanine e. cytosine Which of the following is not a component of DNA? a. cyto...
Purines are essential components of the DNA and RNA nucleobase backbone and also function as components of other metabolic molecules that are involved in a great number of metabolic pathways, such as adenosine triphosphate (ATP), cyclic adenosine monophosphate (cAMP), reduced nicotinamide adenine dinuc...
The reaction of ROS with DNA mainly comes about due to reactions of OH with pyrimidines, purines, or sugars in DNA, and one of the most frequent oxidative DNA lesions is 8-hydroxy-2-deoxyguanosine (8-OHdG)37. Therefore, 8-OHdG is known to be a biomarker for oxidative damage of DNA...
There are two groups of bases: Pyrimidines: Cytosine and Thymine each have a single six-member ring. Purines: Guanine and Adenine each have a double ring made up of a five-atom ring attached by one side to a six-atom ring. The order of nucleotides along DNA polymers encodes the ...
Molecule DNA-RNA Visualization This Amira Software module visualizes the typical ladder structure of double-stranded DNA or single-stranded RNA structures. Each strand consists of multiple nucleotides with four different base types (Adenin, Cytosine, Guanine, and Thymine for DNA...
All organisms must safeguard the integrity of their DNA to avoid deleterious consequences of genome instability, which have been linked to human diseases such as autoimmune disorders, neurodegenerative diseases and cancer. Traditionally, genome maintenan