Definitions for uracilˈyʊər ə sɪl

This page provides all possible meanings and translations of the word uracil

Random House Webster's College Dictionary

u•ra•cilˈyʊər ə sɪl(n.)

  1. a pyrimidine base, C4H4N2O2, that is one of the fundamental components of RNA, in which it forms base pairs with adenine.

    Category: Biochemistry

    Ref: Symbol: U 5

Origin of uracil:

1905–10; ur -1+ac (etic ) +-il, of uncert. orig.

Princeton's WordNet

  1. uracil, U(noun)

    a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine

Wiktionary

  1. uracil(Noun)

    One of the bases of RNA. It pairs with adenine and is symbolised by U.

  2. Origin: From ur- + acetic + -ile

Freebase

  1. Uracil

    Uracil one of the four nucleobases in the nucleic acid of RNA that are represented by the letters A, G, C and U. The others are adenine, cytosine, and guanine. In RNA, uracil binds to adenine via two hydrogen bonds. In DNA, the uracil nucleobase is replaced by thymine. Uracil is a common and naturally occurring pyrimidine derivative. Originally discovered in 1900, it was isolated by hydrolysis of yeast nuclein that was found in bovine thymus and spleen, herring sperm, and wheat germ. It is a planar, unsaturated compound that has the ability to absorb light. Studies reported in 2008, based on ¹²C/¹³C isotopic ratios of organic compounds found in the Murchison meteorite, suggested that uracil, xanthine and related molecules were formed extraterrestrially. In 2012 an analysis of data from the Cassini mission orbiting in the Saturn system showed that Titan's surface composition may include uracil.

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