• amino acid - A building block of proteins is an alpha amino acid which contains a basic amino group, an acidic carboxyl group, and a hydrogen or organic side chain attached to the central carbon atom. (rcsb.org)
  • There are 20 different alpha amino acids commonly found in nature that can covalently link with each other to form short peptides or longer proteins. (rcsb.org)
  • Adding C-beta torsion restraints. (lbl.gov)
  • Number of C-beta restraints generated: 660 Finding SS restraints. (lbl.gov)
  • The Ramachandran Principle says that alpha helices, beta strands, and turns are the most likely conformations for a polypeptide chain to adopt, because most other conformations are impossible due to steric collisions between atoms. (proteopedia.org)
  • Check Alanine to identify its atoms 1 . (proteopedia.org)
  • 3-10 helix - A type of protein secondary structural element that is more tightly coiled than the alpha helix (3 amino acids per turn with 10 atoms in the ring completed by each intra-helical hydrogen bond). (rcsb.org)
  • Stable secondary structures include the alpha-helices and beta-sheets. (wikipedia.org)
  • So, we need to predict and calculate the proper distance for every different scaffold of β-sheet structures. (springeropen.com)
  • Residues in an alpha-helical conformation are marked α , and those in a beta strand conformation, β . (proteopedia.org)
  • A DNA (A-form DNA) - A conformation of right-handed, double stranded DNA in which the bases are tilted with reference to the helix axis. (rcsb.org)
  • The alpha carbon (C α ) in the center of each amino acid is held in the main chain by two rotatable bonds. (proteopedia.org)
  • alanine (Ala, A) - Alpha amino acid with a non-polar side chain. (rcsb.org)
  • For example, the backbone carbon atom linked to the carbonyl group in an alpha amino acid, to which the side chain is attached. (rcsb.org)
  • It is characterized by hydrogen bonds between the carbonyl group (-C=O) of one amino acid and the amino (N-H) group of the amino acid 4 residues below it along the helix. (rcsb.org)
  • Secondary structure from input PDB file: 12 helices and 2 sheets defined 67.1% alpha, 7.2% beta 0 base pairs and 0 stacking pairs defined. (lbl.gov)
  • 23. The apparatus of claim 21, wherein each electrode in the array has a line width of approximately 100 micrometers, and wherein adjacent electrodes of the array are separated by a distance of approximately 100 micrometers. (patentsencyclopedia.com)
  • These interactions works on a basis of preference dependent on energy properties and specificity. (wikipedia.org)
  • alpha helix - A secondary structural motif of a protein. (rcsb.org)
  • These building blocks are mostly composed of α-helices, β-sheets, or a mixture of them (Fig. 3 A). The symmetry of the units and dimensions of the supramolecular protein are determined, depending on how the folding unit is configured. (springeropen.com)
  • alpha carbon - The carbon in a molecule that is one carbon away from an aldehyde or ketone group. (rcsb.org)
  • NAMD works with AMBER and CHARMM potential functions, parameters, and file formats. (uiuc.edu)
  • These elements are often found as a terminal extension of an alpha helix and are less common than them. (rcsb.org)
  • Secondary structure from input PDB file: 13 helices and 10 sheets defined 15.3% alpha, 33.9% beta 0 base pairs and 0 stacking pairs defined. (lbl.gov)
  • Stable secondary structures include the alpha-helices and beta-sheets. (wikipedia.org)
  • Secondary structure from input PDB file: 88 helices and 2 sheets defined 64.7% alpha, 1.2% beta 0 base pairs and 0 stacking pairs defined. (lbl.gov)
  • The authors examined six different SARS-CoV-2 RBD variants, including Alpha, Beta and Gamma, and found that these dominant mutations result in enhanced binding affinity to hACE2 and/or enhancement of viral entry to human cells. (covidreference.com)
  • Amyloid beta (Aβ of Alzheimer's disease) and α-synuclein (α-Syn of Parkinson's disease) form large fibrils. (nih.gov)
  • The two complementary DNA strands in cellular DNA are wound around a common axis to form the double helix. (nih.gov)
  • These interactions works on a basis of preference dependent on energy properties and specificity. (wikipedia.org)
  • Now, Americans sometimes have a hard time understanding the way class works in a place like London. (nih.gov)