antiparallel
nounEtymology From anti- + parallel.
1
Geometry, Mathematics, Sciences A line that forms equal angles with two other lines, but in opposite directions.
antiparallel
adjEtymology From anti- + parallel.
› (of vectors) Parallel but in opposite directions.
1
Biochemistry, Biology, Chemistry, Mathematics, Microbiology, Natural sciences, Physical sciences, Sciences Describing the orientations of the two strands of DNA.
- 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.2015 October 16, “Polyanionic Carboxyethyl Peptide Nucleic Acids ( ce -PNAs): Synthesis and DNA Binding”, in PLOS ONE, →DOI:
2
Biochemistry, Biology, Chemistry, Mathematics, Microbiology, Natural sciences, Physical sciences, Sciences 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.
- Derived terms
- antiparallelly, nonantiparallel