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Antiparallel

adj, noun

Definitions

Adjective
  1. 1
    (of vectors) Parallel but in opposite directions.; Describing the orientations of the two strands of DNA. not-comparable

    "Upon interaction with ss- nucleic acid (NA) targets (deoxyribooligonucleotides (ODNs) or ribooligonucleotides), they form very stable anti-parallel and parallel duplexes [3 ], and the melting temperatures of the antiparallel duplexes are 10 to 15°C higher than those of the parallel duplexes."

  2. 2
    (of vectors) Parallel but in opposite directions.; Describing two beta strands comprising a protein's secondary structure that are aligned and hydrogen bonded but where the vectors describing the amino- and carboxy-terminal ends of each strand are oriented 180° relative to one another. not-comparable
Adjective
  1. 1
    (especially of vectors) parallel but oppositely directed wordnet
Noun
  1. 1
    A line that forms equal angles with two other lines, but in opposite directions.

Etymology

Etymology 1

From anti- + parallel.

Etymology 2

From anti- + parallel.

See also for "antiparallel"

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