J 2009

Circular dichroism and conformational polymorphism of DNA

KYPR, Jaroslav, Iva KEJNOVSKÁ, Daniel RENČIUK a Michaela VORLÍČKOVÁ

Základní údaje

Originální název

Circular dichroism and conformational polymorphism of DNA

Vydání

Nucleic Acids Research, Oxford, Oxford Press, 2009, 0305-1048

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 7.479

Organizační jednotka

Středoevropský technologický institut

UT WoS

000265097400008

Klíčová slova anglicky

GUANINE-GUANINE STACKING; HUMAN TELOMERIC SEQUENCE; ADENINE REPEAT STRANDS; DOUBLE-HELICAL DNA; G-QUADRUPLEX; NUCLEIC-ACID; POTASSIUM SOLUTION; CRYSTAL-STRUCTURE; MELTING CURVES; SYNTHETIC DNA

Štítky

Změněno: 14. 4. 2014 09:49, Olga Křížová

Anotace

V originále

Here we review studies that provided important information about conformational properties of DNA using circular dichroic (CD) spectroscopy. The conformational properties include the B-family of structures, A-form, Z-form, guanine quadruplexes, cytosine quadruplexes, triplexes and other less characterized structures. CD spectroscopy is extremely sensitive and relatively inexpensive. This fast and simple method can be used at low- as well as high-DNA concentrations and with short- as well as long-DNA molecules. The samples can easily be titrated with various agents to cause conformational isomerizations of DNA. The course of detected CD spectral changes makes possible to distinguish between gradual changes within a single DNA conformation and cooperative isomerizations between discrete structural states. It enables measuring kinetics of the appearance of particular conformers and determination of their thermodynamic parameters. In careful hands, CD spectroscopy is a valuable tool for mapping conformational properties of particular DNA molecules. Due to its numerous advantages, CD spectroscopy significantly participated in all basic conformational findings on DNA.