Results 341 to 350 of about 124,338 (379)
Some of the next articles are maybe not open access.
Astrobiology, 2013
The informational subunits of RNA or DNA consist of substituted N-heterocyclic compounds that fall into two groups: those based on purine (C₅H₄N₄) (adenine and guanine) and those based on pyrimidine (C₄H₄N₂) (uracil, cytosine, and thymine).
C. Materese +4 more
semanticscholar +1 more source
The informational subunits of RNA or DNA consist of substituted N-heterocyclic compounds that fall into two groups: those based on purine (C₅H₄N₄) (adenine and guanine) and those based on pyrimidine (C₄H₄N₂) (uracil, cytosine, and thymine).
C. Materese +4 more
semanticscholar +1 more source
Time-resolved photoelectron imaging of the iodide-thymine and iodide-uracil binary cluster systems.
Faraday discussions, 2013The energetics and dynamics of thymine and uracil transient negative ions were examined using femtosecond time-resolved photoelectron imaging. The vertical detachment energies (VDEs) of these systems were found to be 4.05 eV and 4.11 eV for iodide ...
S. King, Margaret A. Yandell, D. Neumark
semanticscholar +1 more source
THE ISOLATION OF THYMOPOIETIN (THYMIN)*
Annals of the New York Academy of Sciences, 1975The isolation from bovine thymus of two closely related polypeptides, thymopoietin I and II, is described. These are considered to be thymic hormones, which physiologically induce the differentation of prothymocytes to thymocytes within the thymus.
openaire +3 more sources
Synthesis of Thymine‐Modified Oligonucleotides
ChemInform, 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
Anna Grandas, Olga Gorchs, Jaume Farràs
openaire +4 more sources
Efficient bypass of a thymine-thymine dimer by yeast DNA polymerase, Poleta.
Science, 1999The RAD30 gene of the yeast Saccharomyces cerevisiae is required for the error-free postreplicational repair of DNA that has been damaged by ultraviolet irradiation.
Robert E. Johnson +2 more
semanticscholar +1 more source
On the Formation of Thymine Photodimers in Thymine Single Strands and Calf Thymus
AbstractSolar light leads to thymine dimers that are mutagenic and primary cause of skin cancer. Here, we report absorption and synchrotron radiation circular dichroism (CD) spectra of Tn single strands with different number n of bases (n = 2–7, 10, 11) recorded after various 254 nm irradiation times.
Baggesen, Lisbeth Munksgård +2 more
openaire +4 more sources
ESR Study of the Thymine Anion Radical in a Single Crystal of Thymine Monohydrate
International Journal of Radiation Biology, 1990ESR spectroscopy was used to study free radicals in an irradiated single crystal of thymine monohydrate at 77 K. At low microwave power (20 microW), a broad doublet is found to be super-imposed on the well known resonance patterns of the 5-yl and 7-yl radicals. The doublet spectrum has been analysed as a difference spectrum.
Janko N. Herak +2 more
openaire +4 more sources
Crystal structure of a thymine–thymine adduct from irradiated thymine [PDF]
Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 1969 openaire +2 more sources
Thymine starvation by inhibition of uptake and synthesis of thymine-compounds in Tetrahymena
Experimental Cell Research, 1968Abstract In Tetrahymena populations, which are heat-synchronized in a proteosepeptone, liver medium, addition after the heat-shocks of a folic acid analogue, 0.05 mM methotrexate (M), plus 5 mM uridine (U), inhibit the second synchronous division in most cells. This inhibition can be specifically overcome with thymidine.
openaire +3 more sources
Radiation-induced Thymine Formation from Thymine Glycol
International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1970Tateki Hayashi, Mitsuo Namiki
openaire +3 more sources