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A hairpin is a special case of a turn, in which the direction of the protein backbone reverses and the flanking secondary structure elements interact. For example, the beta hairpin connects two hydrogen-bonded, antiparallel β-strands.
- Tertiary and Quaternary Structures
Table \(\PageIndex{1}\): pKa values of side chains in actual...
- Main Chain Conformations
The 310 helix, a sharper helix with 3 amino acids/turn,...
- Alpha Helix From Bacteriophage T4 Lysozyme (1Dyg)
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- PDB = 3Ua0
N-terminal part (domain) of the Bombyx mori fibroin silk...
- Pi Helix From beta-D-glucan Glucohydrolase (1X38)
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- TIM Barrel
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- 1Dpx
Expand/collapse global hierarchy Home Learning Objects...
- 3-10Helix From Dienelactone Hydrolase (1Din)
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- Tertiary and Quaternary Structures
A hairpin is a special case of a turn, in which the direction of the protein backbone reverses and the flanking secondary structure elements interact. For example, a beta hairpin connects two hydrogen-bonded , antiparallel β-strands (a rather confusing name, since a β-hairpin may contain many types of turns – α, β, γ, etc.).
11 sie 2024 · Beta-hairpin or beta-turn This motif is present in most antiparallel beta structures, both as an isolated ribbon and as part of beta sheets. Figure \(\PageIndex{8}\) shows an interactive iCn3D model of the beta hairpin from bovine pancreatic trypsin inhibitor (1k6u)
15 maj 2024 · A Stem-loop can be defined as a hairpin-like pattern formed because of the intramolecular base pairing of the nucleotide sequence (especially in palindromic sequence) within the same molecule. Here, the nucleotide pairs within the molecule to form a double helix structure ending in an unpaired loop resulting in a hairpin-like structure.
Hairpin DNA-functionalized gold nanoparticles (hAuNPs) for detection of mRNA in living cells. Hairpin DNA is coupled to the gold colloid surface via a 5′ hexane thiol, thereby quenching fluorescence emission of the 3′ fluorescent dye. The hairpin formation sequences maintain the hairpin conformation through complementary hydrogen bonding.
A hairpin loop is an unpaired loop of messenger RNA (mRNA) that is created when an mRNA strand folds and forms base pairs with another section of the same strand. The resulting structure...
In their search of 54 proteins Miner-White, et. al. found 61 inverse γ-turns, but only one formed a β-hairpin producing a reversal in the peptide chain. Example of an from proteinase A. Compare the structures of a classic and an inverse turns in the two applets below.
