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antiparallel

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
antiparallel [ˌæntɪˈpærəˌlɛl]
adj
1. (Physics / General Physics) Physics parallel but pointing in the opposite direction
2. (Mathematics) Maths (of vectors) parallel but having opposite directions
ThesaurusLegend:  Synonyms Related Words Antonyms
Adj.1.antiparallel - (especially of vectors) parallel but oppositely directed; "antiparallel vectors"
parallel - being everywhere equidistant and not intersecting; "parallel lines never converge"; "concentric circles are parallel"; "dancers in two parallel rows"


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The hydrogen bonds are between antiparallel chains in the [alpha] form and between the parallel chains in the [gamma] form.
However, antiparallel [beta]-sheets have also been found by solid state NMR in fibrils formed by shorter [beta]-amyloid fragment.
7a indicates that CtCVNH structure is quite similar to that of native CV-N, including the positions of triple-stranded antiparallel [beta]-sheet (the first sequence repeat: [beta]1, [beta]2, and [beta]3; the second: [beta]6, [beta]7, and [beta]8), [beta]-hairpin (formed by [beta]4 and [beta]5, [beta]9 and [beta]10, respectively), and [alpha]-helical turn ([micro]1-4).
 
 
 
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