News tagged with rna

Related topics: dna , genes , protein , gene expression , cells

Blood product sterilization taken too far?

Certain processes used to sterilize blood products could potentially cause serious health issues in transfusion recipients, according to an international study published in the journal Platelets and led by Dr. Patrick Provos ...

Jun 12, 2014
popularity 3 / 5 (2) | comments 0

Scientists slow brain tumor growth in mice

Much like using dimmer switches to brighten or darken rooms, biochemists have identified a protein that can be used to slow down or speed up the growth of brain tumors in mice.

May 13, 2014
popularity 4 / 5 (2) | comments 0

Unlocking a mystery of thalidomide

In the 1950s and 1960s, pregnant women with morning sickness were often prescribed the new drug thalidomide. Shortly after the medicine was released on the market, a reported 10,000 infants were born with ...

May 01, 2014
popularity 5 / 5 (1) | comments 0

RNA

Ribonucleic acid (RNA) is a biologically important type of molecule that consists of a long chain of nucleotide units. Each nucleotide consists of a nitrogenous base, a ribose sugar, and a phosphate. RNA is very similar to DNA, but differs in a few important structural details: in the cell, RNA is usually single-stranded, while DNA is usually double-stranded; RNA nucleotides contain ribose while DNA contains deoxyribose (a type of ribose that lacks one oxygen atom); and RNA has the base uracil rather than thymine that is present in DNA.

RNA is transcribed from DNA by enzymes called RNA polymerases and is generally further processed by other enzymes. RNA is central to the synthesis of proteins. Here, a type of RNA called messenger RNA carries information from DNA to structures called ribosomes. These ribosomes are made from proteins and ribosomal RNAs, which come together to form a molecular machine that can read messenger RNAs and translate the information they carry into proteins. There are many RNAs with other roles – in particular regulating which genes are expressed, but also as the genomes of most viruses.

This text uses material from Wikipedia licensed under CC BY-SA