linkedin post 2021-06-05 04:56:31

linkedin post 2021-06-05 04:56:31

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GENE CONTROL. “Extensive studies have been carried out which have shown that methylation of DNA is generally associated with turning off transcription; conversely, demethylation is associated with the initiation of transcription or the expression of the gene.” https://link.springer.com/content/pdf/10.1007/978-94-009-7052-6.pdf View in LinkedIn
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linkedin post 2021-06-05 04:54:22

linkedin post 2021-06-05 04:54:22

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STABILIZERS. “The major conclusion reached from these studies is that the equilibrium between the B form and Z form of poly(dG-dC) is strongly influenced by cations and by the substituents which are attached to the polymer. A number of these substituents profoundly influence the equilibrium between the two forms and favor the Z-DNA conformation.” https://link.springer.com/content/pdf/10.1007/978-94-009-7052-6.pdf View in LinkedIn
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linkedin post 2021-06-05 04:53:30

linkedin post 2021-06-05 04:53:30

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THE STABILITY EXPLANTATION. “Since purine nucleotides can adopt the syn conformation more readily than pyrimidine nucleotides, it is reasonable to believe that the Z conformation will be favored in sequences with alternating purines and pyrimidines.” https://link.springer.com/content/pdf/10.1007/978-94-009-7052-6.pdf View in LinkedIn
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linkedin post 2021-06-05 04:52:18

linkedin post 2021-06-05 04:52:18

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ORIENTATION SWITCH. “One consequence of these differences in conformation is that the bases in Z-DNA have a different orientation relative to the sugar phosphate backbone than they do in B-DNA. In essence, the bases must "flip over" in order to go from one form to the other.” https://link.springer.com/content/pdf/10.1007/978-94-009-7052-6.pdf View in LinkedIn
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linkedin post 2021-06-06 03:50:32

linkedin post 2021-06-06 03:50:32

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THE BACKGROUND. “Antibodies against nuclear components have been found in certain pathological states. In the autoimmune disease systemic lupus erythematosus a variety of antibodies have been identified against various nucleic acid components.” https://link.springer.com/content/pdf/10.1007/978-94-009-7052-6.pdf View in LinkedIn
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linkedin post 2021-06-06 03:48:49

linkedin post 2021-06-06 03:48:49

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SURPRISE FINDING. “It has been shown that Z-DNA can exist in the same molecule with B-DNA. This was shown by cloning oligo(dG-dC) into plasmids and then isolating segments containing both the plasmid DNA and the oligo(dG-dC).” https://link.springer.com/content/pdf/10.1007/978-94-009-7052-6.pdf View in LinkedIn
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