5′

noun

That end of any DNA strand that has a terminal phosphate group.

Opposite
3′
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Meanings

noun5′ (uncountable)
  1. uncountableThat end of any DNA strand that has a terminal phosphate group.
adjective5′ (comparative more 5′, superlative most 5′)

comparative more 5′ · superlative most 5′

  1. informalRelatively close to the 5′ end of a strand of DNA.

    A CG pair is often designated CpG to signify that the two nucleotides are contiguous in DNA and that the C is 5′ to the G.

    1992, James D. Watson et al., Recombinant DNA, second edition, Scientific American Books, page 147

Synonyms & antonyms

Opposite
3′
Cite this entry
APA

5′. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/5%E2%80%B2

MLA

“5′.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/5%E2%80%B2. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “5′,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/5%E2%80%B2.

Source: 5′ on Wiktionary, CC BY-SA 4.0.