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comis.med.uvm.edu/VIC/coursefiles/MD540/MD540-Protein_Organization_10400_574581210/Protein-org/Protein_Organization3.html

The Alpha Helix ... An alpha helix is an element of secondary structure in which the amino acid chain is arranged in a spiral. The kinemage linked above shows an ...

www.ncbi.nlm.nih.gov/books/NBK22580

In 1951, Linus Pauling and Robert Corey proposed two periodic structures called the α helix (alpha helix) and the β pleated sheet (beta pleated sheet).

pubs.acs.org/doi/10.1021/ja0456003

Feb 12, 2005 ... Alpha-helical sequences of ≤15 amino acids are estimated to account for ∼30% of protein structure and frequently mediate biological processes ...

www.nature.com/articles/srep38341

Dec 5, 2016 ... α-Helices are the most abundant structures found within proteins and play an important role in the determination of the global structure of ...

sites.bmb.colostate.edu/bc401/6/a-helix-2.php

Alpha-Helices: Fundamentals ... Each residue in the helix is involved in two hydrogen bonds (except for the residues at the ends). These hydrogen bonds are ...

journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1004328

Aug 21, 2015 ... We show that the peptides are neither random coils in bulk water nor fully formed alpha helices, but adopt multiple conformations and secondary ...

chem.libretexts.org/Bookshelves/Biological_Chemistry/Supplemental_Modules_(Biological_Chemistry)/Proteins/Protein_Structure/Secondary_Structure%3A_-Helices

Aug 10, 2020 ... An α-helix is a right-handed coil of amino-acid residues on a polypeptide chain, typically ranging between 4 and 40 residues.

www.dictionary.com/browse/alpha-helix

Alpha helix definition, the rodlike spatial configuration of many protein molecules in which the polypeptide backbone is stabilized by hydrogen bonds ...

www.rcsb.org/structure/111L

The propensity of an amino acid to form an alpha helix in a protein was determined by multiple amino substitutions at positions 44 and 131 in T4 lysozyme.

web.mit.edu/mbuehler/www/SIMS/Stretching%20an%20Alpha%20Helix.html

The alpha helix is a secondary structure in proteins. This means that it results from the folding of a single amino acid chain. Hydrogen bonds form between ...

en.wikipedia.org/wiki/Alpha_helix

The alpha helix (α-helix) is a common motif in the secondary structure of proteins and is a right hand-helix conformation in which every backbone N−H group ...