| 41. | Traditional mine train roller coaster track elements include several banked turns and helices.
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| 42. | These ?-sheets are surrounded on both sides by ?-helices.
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| 43. | While most subfamilies have 10 transmembrane helices, there are some notable exceptions.
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| 44. | The crystal structure of GADD45G reveals a dimer made of four parallel helices.
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| 45. | The structure is stabilised by disulfide bonds linking the helices to each other.
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| 46. | The TAZ domain adopts an all-alpha helices.
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| 47. | S6 segments are transmembrane helices within the channel protein.
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| 48. | A previously undescribed proton translocation pathway is formed by six core transmembrane helices.
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| 49. | It is predicted to function through protein-protein interactions via two amphipathic helices.
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| 50. | As a homodimer, sulfite oxidase contains two identical subunits with an alpha helices.
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