Example sentences for: abasic

How can you use “abasic” in a sentence? Here are some example sentences to help you improve your vocabulary:

  • APEs are essential for mammalian cell growth and bacterial survival in the presence of ionizing radiation and DNA mutagens [ 6 ] . They initiate repair of an abasic DNA site by cleaving the phosphodiester backbone 5' of the phosphodeoxyribose.

  • Is the specificity of APE determined by binding 3' to an abasic site?

  • This generates the necessary 3' hydroxyl group for DNA polymerases (pol β, δ or ε, in eukaryotes) to insert the correct nucleotide in later steps in the base excision repair pathway (BER-pathway) [ 7 8 ] . Recent crystal structures of huAPE1 complexed with DNA containing an abasic site [ 9 10 11 ] , combined with sequence analysis and site-directed mutagenesis, have defined the residues that participate in metal ion based cleavage of the phosphate backbone of the DNA [ 12 13 14 15 16 17 ] .

  • The 3' approach to the DNA [ 34 ] and the wide area covered by the protein on both sides of the abasic site [ 14 ] are both consistent with the need to hold the product until the correct polymerase moves in 5' to 3' to complete the repair [ 25 ] . This implies that the mammalian enzyme has evolved to be processive, to facilitate more efficient functioning of the overall BER pathway, and may not be optimized for simple catalysis.

  • The residues contacting the region 3' to the abasic site come from three different uniquely conserved areas of APEs (molegos 6,7a, 10) as well as 11, a molego that is similar to that in DNase-1.


How many words do you know? Try our free vocabulary size test!


Search

Search for example sentences

Loading Loading...
Quantcast