2003
DOI: 10.1002/bip.10419
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DNA interaction with Mn2+ ions at elevated temperatures: VCD evidence of DNA aggregation

Abstract: Interaction of natural calf thymus DNA with Mn(2+) ions was studied at room temperature and at elevated temperatures in the range from 23 degrees C to 94 degrees C by means of IR absorption and vibrational circular dichroism (VCD) spectroscopy. The Mn(2+) concentration was varied between 0 and 1.3M (0 and 10 [Mn]/[P]). The secondary structure of DNA remained in the frame of the B-form family in the whole ion concentration range at room temperature. No significant DNA denaturation was revealed at room temperatu… Show more

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Cited by 41 publications
(54 citation statements)
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“…They are summarized in Table I based on a recent review 46 and two analyses of DNA interacting with manganese ions. 52,65 Carbonyl Region. Most of the absorption and VCD features of DNA (r ¼ R ¼ 0.0) between 1750 and 1450 cm À1 (Figure 4) originate from C¼ ¼O stretching and skeletal ring vibrations of the nitrogenous bases.…”
Section: Ir Experimentsmentioning
confidence: 99%
“…They are summarized in Table I based on a recent review 46 and two analyses of DNA interacting with manganese ions. 52,65 Carbonyl Region. Most of the absorption and VCD features of DNA (r ¼ R ¼ 0.0) between 1750 and 1450 cm À1 (Figure 4) originate from C¼ ¼O stretching and skeletal ring vibrations of the nitrogenous bases.…”
Section: Ir Experimentsmentioning
confidence: 99%
“…As the IR spectrum of DNA has been well characterized previously, [32][33][34][35]37 only some specific assignments germane to the discussion are summarized in Table I. Of principal significance here is the region between $1710 and 1620 cm À1 (Figure 3) consisting of the C¼ ¼O stretching modes of all four bases.…”
Section: Ir Experimentsmentioning
confidence: 99%
“…[32][33][34][35] The assignments for DNA (Figure 3) are discussed in detail elsewhere 30 and are briefly summarized in Table I.…”
Section: Ir Experimentsmentioning
confidence: 99%
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