Search results
Results from the WOW.Com Content Network
After a certain amount of time, the message degrades into its component nucleotides with the assistance of ribonucleases. [ 27 ] Transfer RNA (tRNA) is a small RNA chain of about 80 nucleotides that transfers a specific amino acid to a growing polypeptide chain at the ribosomal site of protein synthesis during translation.
[9] This letter was followed by a letter from Franklin and Gosling, which was the first publication of their own X-ray diffraction data and of their original analysis method. [ 48 ] [ 211 ] Then followed a letter by Wilkins and two of his colleagues, which contained an analysis of in vivo B-DNA X-ray patterns, and which supported the presence ...
Helix is an American science fiction horror drama television series that aired on Syfy from January 10, 2014, to April 10, 2015. [1] The series follows a team of scientists from the Centers for Disease Control and Prevention (CDC) who travel to a research facility in the Arctic to investigate a potential outbreak of disease.
The Path to The Double Helix: Discovery of DNA. MacMillan. ISBN 978-0-486-68117-7. (with foreword by Francis Crick; revised in 1994, with a 9-page postscript.) Watson, James D. (1980). The Double Helix: A Personal Account of the Discovery of the Structure of DNA. Atheneum. ISBN 978-0-689-70602-8. (first published in 1968) Wilkins, Maurice (2003).
In addition to the protein domains, there are unusual transmembrane elements formed by peptides. A typical example is gramicidin A, a peptide that forms a dimeric transmembrane β-helix. [8] This peptide is secreted by gram-positive bacteria as an antibiotic. A transmembrane polyproline-II helix has not been reported in natural proteins ...
Biomolecular structure is the intricate folded, three-dimensional shape that is formed by a molecule of protein, DNA, or RNA, and that is important to its function.The structure of these molecules may be considered at any of several length scales ranging from the level of individual atoms to the relationships among entire protein subunits.
The pitch of the alpha-helix (the vertical distance between consecutive turns of the helix) is 5.4 Å (0.54 nm), which is the product of 1.5 and 3.6. The most important thing is that the N-H group of one amino acid forms a hydrogen bond with the C=O group of the amino acid four residues earlier; this repeated i + 4 → i hydrogen bonding is the ...
The basic helix-loop-helix (bHLH) domain is found in some transcription factors and is characterized by two alpha helices (α-helixes) connected by a loop. One helix is typically smaller and due to the flexibility of the loop, allows dimerization by folding and packing against another helix. The larger helix typically contains the DNA-binding ...