English

Noun

5′ ‎(uncountable)

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

Antonyms

• 3′

Adjective

5′ ‎(comparative more 5′, superlative most 5′)

1. (informal) Relatively close to the 5′ end of a strand of DNA.
   • 1992, James D. Watson et al., Recombinant DNA, second edition, Scientific American Books, ISBN 0716722828, page 147:

     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.