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An alpha helix (or α-helix) is a sequence of amino acids in a protein that are twisted into a coil (a helix).
Discovery, Structure & Experimental determination
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helix structure protein α-helix amino helical helices acids also hydrogen proteins residues α-helices α-helical bond backbone acid dna two common
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Alpha helix | is a | most common structural arrangement in the secondary structure of proteins | 0.90 | text |
| the plasma membrane | instance of | in more hydrophobic environments | 0.80 | text |
| or in the presence of co-solvents such as trifluoroethanol | instance of | in more hydrophobic environments | 0.80 | text |
| the example shown at right | instance of | the most detailed experimental evidence for α-helical structure comes from atomic-resolution X-ray crystallography | 0.80 | text |
| glutamate or aspartate | instance of | sometimes an amino acid side chain | 0.80 | text |
| or sometimes a phosphate ion | instance of | sometimes an amino acid side chain | 0.80 | text |
| keratin or the | instance of | Fibrous proteins | 0.80 | text |
| coiled-coils | instance of | as well as in specialized structures | 0.80 | text |
| leucine zippers | instance of | as well as in specialized structures | 0.80 | text |
| an α-helix will exhibit two | instance of | as well as in specialized structures | 0.80 | text |
| for rhodopsins | instance of | most classically consisting of seven helices arranged up-and-down in a ring | 0.80 | text |
| Alpha helix | related to In art | At | 0.60 | section |
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