Název: Strukturní flexibilita regulačního segmentu DNA
Překlad názvu: Structural flexibility of regulatory DNA element
Autoři: Řezáčová, Barbora ; Štěpánek, Josef (vedoucí práce) ; Rosenberg, Ivan (oponent)
Typ dokumentu: Diplomové práce
Rok: 2009
Jazyk: cze
Abstrakt: Transcription of the genetic code is controlled by numerous proteins. Some of them, so-called transcription factors, bind to certain DNA regions possessing anomalous properties due to their specific and highly conservative base sequence. One of these DNA segments is SRE (Serum Response Element). The diploma work is linked to results of the previous study indicating that the structural flexibility of this segment, related to the CArG box sequence, plays a key role in its physiological activity. Our work is devoted to study of this DNA segment and its model sequential variants. The approach of accurate measurements of temperature dependent UV absorption spectra and their consecutive analysis by means of factor analysis techniques and difference spectra construction, the main part of which was also developed within the framework of this work, was employed. The results indicate that separate chains of SRE with various length form surprisingly stable hairpins, which in some cases prevail even in mixtures of both chains of the SRE segment over duplexes. By using a fitting to thermodynamic equilibrium equations, thermodynamic characteristics of temperature induced association and dissociation transitions of complexes, both intermolecular (duplexes) and intramolecular (hairpins), were obtained.

Instituce: Fakulty UK (VŠKP) (web)
Informace o dostupnosti dokumentu: Dostupné v digitálním repozitáři UK.
Původní záznam: http://hdl.handle.net/20.500.11956/23318

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-278133


Záznam je zařazen do těchto sbírek:
Školství > Veřejné vysoké školy > Univerzita Karlova > Fakulty UK (VŠKP)
Vysokoškolské kvalifikační práce > Diplomové práce