polyadenylic acid

Polynucleotide chain consisting entirely of residues of adenylic acid (ie. the base sequence is AAAA....AAAA). Polyadenylic chains of various lengths are found at the 3\' end of most eukaryotic mRNAs, the poly-A tail.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • polyadenylic acid — ˌ… noun Etymology: poly + adenylic acid : poly(a) herein * * * /pol ee ad n il ik, pol /, Biochem. a homopolymer of adenylic acid enzymatically added to messenger RNA in eukaryotic cells to inhibit the hydrolytic breakdown of messenger RNA. [1955 …   Useful english dictionary

  • polyadenylic acid — /pol ee ad n il ik, pol /, Biochem. a homopolymer of adenylic acid enzymatically added to messenger RNA in eukaryotic cells to inhibit the hydrolytic breakdown of messenger RNA. [1955 60; POLY + ADENYLIC ACID] * * * …   Universalium

  • polyadenylic acid — poly·ad·e·nyl·ic acid .il ik n POLY(A) * * * poly·ad·e·nyl·ic ac·id (pol″e ad″ə nilґik) a homopolymer composed solely of adenylic acid residues; see also polyadenylate tail, under tail. Abbreviated poly A …   Medical dictionary

  • polyadenylic acid — pol′y•ad•e•nyl′ic ac′id [[t]ˈpɒl iˌæd nˈɪl ɪk, ˌpɒl [/t]] n. lab a segment of nucleotides composed of adenylic acid residues, appearing at the tail end of messenger RNA after transcription and inducing stability: added to DNA fragments in certain …   From formal English to slang

  • polyadenylic acid — noun Date: 1956 poly(a) …   New Collegiate Dictionary

  • polyadenylic acid — noun A polymer of adenylic aid attached to mRNA before transportation to the cytoplasm …   Wiktionary

  • polyadenylic — adjective Of or pertaining to polyadenylic acid or its derivatives …   Wiktionary

  • poly-A — polyadenylic acid …   Medical dictionary

  • poly-A — • polyadenylic acid …   Dictionary of medical acronyms & abbreviations

  • poly(A) — • polyadenylic acid …   Dictionary of medical acronyms & abbreviations

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.