An alpha helix (or α-helix) is a sequence of amino acids in a protein that are twisted into a coil (a helix). The alpha helix is the most common structural...
46 KB (5,219 words) - 01:46, 14 August 2024
substructures, known as alpha helices. The word helix comes from the Greek word ἕλιξ, "twisted, curved". A "filled-in" helix – for example, a "spiral"...
12 KB (1,808 words) - 08:31, 15 August 2024
Supersecondary structure (section Helix-loop-helix)
process of protein folding. A helix hairpin, also known as an alpha-alpha hairpin, is composed of two antiparallel alpha helices connected by a loop of...
7 KB (804 words) - 01:22, 27 September 2023
structure of α-keratin is very similar to that of a traditional protein α-helix and forms a coiled coil. Due to its tightly wound structure, it can function...
11 KB (1,442 words) - 09:45, 18 August 2023
Transmembrane domain (redirect from Transmembrane alpha-helix)
a membrane-spanning protein domain. TMDs may consist of one or several alpha-helices or a transmembrane beta barrel. Because the interior of the lipid...
8 KB (1,006 words) - 04:43, 3 June 2024
bodies. A single molecule study in 2008 suggests alpha-synuclein exists as a mix of unstructured, alpha-helix, and beta-sheet-rich conformers in equilibrium...
83 KB (9,383 words) - 03:57, 6 July 2024
structures of biological molecules, and showed the importance of the alpha helix and beta sheet in protein secondary structure. Pauling's approach combined...
141 KB (13,984 words) - 06:19, 15 August 2024
fraction of the molecule in an alpha helix conformation versus turn or random coil. The main attraction in investigating alpha helix formation is that one encounters...
3 KB (328 words) - 20:32, 13 May 2024
In molecular biology, the collagen triple helix or type-2 helix is the main secondary structure of various types of fibrous collagen, including type I...
6 KB (623 words) - 16:23, 7 April 2024
in proteins (the alpha helix). Linus Pauling was the first to identify the 3.6 amino acids per helix turn ratio of the alpha helix. Crick was witness...
112 KB (13,706 words) - 03:55, 12 August 2024