Side view of a 310-helix of alanine residues in atomic detail. Two hydrogen bonds to the same peptide group are highlighted in magenta; the oxygen-hydrogen distance is 1.83 Å (183 pm). The protein chain runs upwards, i.e., its N-terminus is at the bottom and its C-terminus at the top of the figure. Note that the sidechains point slightly downwards, i.e., towards the N-terminus.
A 310 helix is a type of secondary structure found in proteins and polypeptides. Of the numerous protein secondary structures present, the 310-helix is the fourth most common type observed; following α-helices, β-sheets and reverse turns. 310-helices constitute nearly 10–15% of all helices in protein secondary structures, and are typically observed as extensions of α-helices found at either their N- or C- termini. Because of the α-helices tendency to consistently fold and unfold, it has been proposed that the 310-helix serves as an intermediary conformation of sorts, and provides insight into the initiation of α-helix folding.
Top view of the same helix shown to the right. Three carbonyl groups are pointing upwards towards the viewer, spaced roughly 120° apart on the circle, corresponding to 3.0 amino-acid residues per turn of the helix.
A 310helix is a type of secondary structure found in proteins and polypeptides. Of the numerous protein secondary structures present, the 310-helix is...
Right-handed 310helix H = Right-handed α-helix I = Right-handed π-helix g = Left-handed 310helix h = Left-handed α-helix i = Left-handed π-helix 3 = 310-like...
include the 310helix (i + 3 → i hydrogen bonding) and the π-helix (i + 5 → i hydrogen bonding). The α-helix can be described as a 3.613 helix, since the...
hydrogen bonding defines a π-helix. Similar structures include the 310helix (i + 3 → i hydrogen bonding) and the α-helix (i + 4 → i hydrogen bonding)...
structures, the alpha helix and its relatives the 310helix and the pi helix, as well as the β-helix. The amide nitrogen and oxygen atoms are too far apart...
series (310helix, alpha helix, pi helix and gamma helix). This theoretical helix contains 5.1 residues per turn.However, a fully developed gamma helix has...
positions i and i + 4, an alpha helix is formed. When the spacing is less, between positions i and i + 3, then a 310helix is formed. When two strands are...
alternatively described in the ABEGO system, where each letter stands for α (and 310) helix, right-handed β sheets (and extended structures), left-handed helixes...
torsional wave near the Galactic Centre traced by a 'double helix' nebula". Nature. 440 (7082): 308–310. Bibcode:2006Natur.440..308M. doi:10.1038/nature04554...
N-loop. This is followed by a single-turn helix, called a 310-helix, three β-strands and a C-terminal α-helix. These helices and strands are connected...
similar. Dendrotoxins possess a very short 310-helix near the N-terminus of the peptide, while a two turn alpha-helix occurs near the C-terminus. A two-stranded...
amino-acid residues found in four main stretches. Other stretches are of the 310helix, a conformation that they had proposed earlier. In this conformation,...
tail is ordered, a six-residue α-helix, an eight-residue P-loop (that binds the γ-phosphate of CTP), and a 310-helix are revealed. Viperin is normally...
a five stranded antiparallel β sheet adjacent to four α helices and a 310helix on the c-terminal end of the domain. The zinc-binding site of B. stearothermophilus...
acid residues. A beta bend ribbon can be regarded as an aberrant 310helix (3/10-helix) that has lost some of its hydrogen bonds. Two websites are available...
conformation, followed by a pair of interlocking turns that resemble a 310helix; the C-terminal Cys35 residue forms a nearly head-to-tail cyclic structure...
transmembrane alpha helix lining the pore. While in the open state conformation, a small mid-region of TM2 develops into a 310-helix. This helical structure...
with a rare cis peptide bond at Cys16–Met 17. The nonpolar C-terminal 310helix formed by Ile35–Lys41, bordering Lys40 and Lys41 and connecting to β region...
when analysis of amino acids were done. It consists of 13 α-helices, 1 310-helix and no β-strand. Long shaped, non-globular shape and 70 Å n size. Width...
includes a short 310-helix between strands beta2 and beta3, in contrast to typical dinucleotide binding proteins in which a regular alpha-helix flanks these...
the major grooves as well as kinking of the DNA; one helix of the HTH motif of TetR adopts a 310 helical turn as the result of complex DNA interactions...
diameter; it is therefore an upper limit for wire wound in the form of a helix (see solenoid), based on uninsulated wire. For enclosed wire at 30 °C ambient...
Simmons was born in San Diego, California where he attended high school at Helix. Simmons was rated as a four star recruit, and committed to play college...
Beast at Kings Island and Fury 325 at Carowinds. Millennium Force features a 310-foot-tall (94 m) cable lift hill with a 300-foot (91 m) drop, two tunnels...
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