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- E-ISSN 2093-8950
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- P-ISSN2233-4203
- E-ISSN2093-8950
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An anomalous dissociation of protonated cluster ions of DNA guanine-cytosine base-pair
Mass Spectrometry Letters / Mass Spectrometry Letters, (P)2233-4203; (E)2093-8950
2011, v.2 no.3, pp.73-75
https://doi.org/10.5478/MSL.2011.2.3.073
(Sogang University)
(Korea Research Institute of Standards and Science)
(Samsung Electronics)
(Sogang University)
(Korea Research Institute of Standards and Science)
(Samsung Electronics)
(Sogang University)
Seong,
Y., Han,
S. Y., Jo,
S., &
Oh,
H.
B.
(2011). An anomalous dissociation of protonated cluster ions of DNA guanine-cytosine base-pair. Mass Spectrometry Letters, 2(3), 73-75, https://doi.org/10.5478/MSL.2011.2.3.073
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Abstract
In the collisionally-activated dissociation of the proton-bound cluster ions of DNA base guanine (G) and cytosine(C), G••H+••C, the abundance of [CH+] ions was found to be higher than that of [GH+] despite the fact that G has a higher protonaffinity than C. This unexpected observation seems to demonstrate another example that the simple kinetic method scheme doesnot work. We suggest that a kinetic factor or detailed dynamics governing the proton transfer and dissociation should be carefullyconsidered in the applications of the kinetic method to the proton affinity measurements.
- keywords
- Pronton affinity, Collisional dissociation, Proton transfer, Guanine, Cytosine
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Seong, Y.. manuscript in preparation.
- Submission Date
- 2011-08-29
- Revised Date
- 2011-09-01
- Accepted Date
- 2011-09-01
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