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231223s2010 xx |||||o 00| ||eng c |
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7 |
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|a 10.1021/la100037z
|2 doi
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|a pubmed24n0651.xml
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|a (DE-627)NLM195309529
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|a (NLM)20178341
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Liu, Ningning
|e verfasserin
|4 aut
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| 245 |
1 |
4 |
|a The nature of the force-induced conformation transition of dsDNA studied by using single molecule force spectroscopy
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|c 2010
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 31.08.2010
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a Single-stranded DNA binding proteins (SSB) interact with single-stranded DNA (ssDNA) specifically. Taking advantage of this character, we have employed Bacillus subtilis SSB protein to investigate the nature of force-induced conformation transition of double-stranded DNA (dsDNA) by using AFM-based single molecule force spectroscopy (SMFS) technique. Our results show that, when a dsDNA is stretched beyond its contour length, the dsDNA is partially melted, producing some ssDNA segments which can be captured by SSB proteins. We have also systematically investigated the effects of stretching length, waiting time, and salt concentration on the conformation transition of dsDNA and SSB-ssDNA interactions, respectively. Furthermore, the effect of proflavine, a DNA intercalator, on the SSB-DNA interactions has been investigated, and the results indicate that the proflavine-saturated dsDNA can be stabilized to the extent that the dsDNA will no longer melt into ssDNA under the mechanical force even up to 150 pN, and no SSB-DNA interactions are detectable
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|a Journal Article
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| 650 |
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|a Research Support, Non-U.S. Gov't
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| 650 |
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7 |
|a DNA, Single-Stranded
|2 NLM
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| 650 |
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7 |
|a DNA-Binding Proteins
|2 NLM
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| 650 |
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|a Proflavine
|2 NLM
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| 650 |
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|a CY3RNB3K4T
|2 NLM
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| 700 |
1 |
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|a Bu, Tianjia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Song, Yu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Wei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Jinjing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Wenke
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shen, Jiacong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Hongbin
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 12 vom: 15. Juni, Seite 9491-6
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:26
|g year:2010
|g number:12
|g day:15
|g month:06
|g pages:9491-6
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|u http://dx.doi.org/10.1021/la100037z
|3 Volltext
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