RNA is an acronym for ribonucleic acid, a nucleic acid. Many different kinds are now known. RNA is physically different from DNA. DNA has two strands...

microRNA (miRNA) and small interfering RNA (siRNA) – do the work. These small RNAs bind to normal messenger RNA (mRNA) molecules and increase or decrease...

interfering RNA (siRNA) is a class of double-stranded RNA molecules, 20-25 base pairs long. siRNA plays many roles, but it is most notable in the RNA interference...

genes that encode RNA which is not translated into protein. The most important RNA genes are transfer RNA (tRNA) and ribosomal RNA (rRNA), both of which...

Messenger RNA vaccines or mRNA vaccines is a type of vaccine that protects the body from certain viruses. Like all vaccines, mRNA vaccines increase the...

RNA splicing is a stage in gene transcription. Messenger RNA (mRNA), which transfers the code from DNA to proteins, is built in two stages. In the first...

Transcription is when RNA is made from DNA. The DNA sequence is copied by a special enzyme called RNA polymerase to make a matching RNA strand. "All living...

a chain of introns and exons. RNA splicing by spliceosomes which remove introns, and formulation of the messenger RNA from exons. In eukaryotes, translation...

RNA-Seq (short for "RNA sequencing") is a technique to get snapshots of the continuously changing RNA landscape in a cell. RNA is a nucleic acid with roles...

RNA viruses are viruses that use RNA as their genetic material. In humans, well-known RNA viruses are those that cause SARS, Influenza or Hepatitis C...

RNA (rRNA); also RNAs such as snoRNAs, microRNAs, siRNAs, snRNAs, exRNAs, and piRNAs and the long noncoding RNAs (long ncRNAs). The number of ncRNAs in...

and RNA. The RNA found within each snRNP particle is known as small nuclear RNA, or snRNA, and is usually about 150 nucleotides in length. The snRNA component...

positive-sense single-stranded RNA virus (or (+)ssRNA virus) is a virus which has positive sense single stranded RNA as its genetic material. They can...

of the cell's DNA by reverse transcribing its RNA. Since the cell cannot proofread the step in which RNA is converted back to DNA, errors often go unnoticed...

first or genetics. The main hypothesis which supports genetics first is the RNA world hypothesis, and the one which supports metabolism first is the protein...

discovered that RNA was a catalyst. Cech discovered that RNA could itself cut strands of RNA, which showed that life could have started as RNA. Cech also studied...

coat which covers a strand of nucleic acid. Usually the nucleic acid is RNA; sometimes it is DNA. Viruses are much smaller than most kinds of bacteria...

double-stranded RNA (dsRNA) effectively shut down specific genes, and so caused the destruction of messenger RNA (mRNA) with sequences matching the dsRNA. As a...

pairs) is made into a product (such as a protein or RNA). The basic idea is that DNA is transcribed into RNA, which is then translated into proteins. Proteins...

that make proteins. They do this through RNA translation, building proteins from amino acids using messenger RNA as a template. Ribosomes are found in all...

2011. Baltimore, David (1970). "Viral RNA-dependent DNA polymerase: RNA-dependent DNA polymerasse in visions of RNA tumor viruses". Nature. 226 (5252):...

will be transcribed into RNA. The function of RNA is much more difficult to explain. One well-known function is for messenger RNA to be translated into proteins...

genes, including those that generate proteins, ribosomal RNA (rRNA), and transfer RNA (tRNA). RNA splicing takes place after transcription and before translation...

Chemistry with Thomas Cech for their work on the catalytic properties of RNA. Altman was of Jewish descent. Altman's Nobel Prize work came with the analysis...

studying eukaryote transcription (the copying of information from DNA to RNA). Kornberg is a professor of Structural Biology at Stanford University School...

Nobel Prize in Physiology or Medicine with Andrew Fire for the discovery of RNA interference. Mello has been a Howard Hughes Medical Institute investigator...

enzyme) is an RNA molecule that can help certain biochemical reactions. similar to the action of protein enzymes. Also called catalytic RNA, ribozymes work...

that RNA degradation is a very ancient and important process. It cleans up cell RNA which is no longer needed. It is a first-line defence against RNA viruses...

on to working on RNA. "By the year 2000, I started to pay more attention to fundamental questions related to the origin of life" (RNA world hypothesis)...

genetic information stored in the sequence of DNA molecules a messenger RNA molecule to carry the instructions for making one protein to the ribosomes...

messenger RNA. In alternative splicing the exons of the pre-messenger RNA produced by transcription are reconnected in different ways during RNA splicing...

The transcriptome is the set of all RNA molecules in one cell or a population of cells. RNA transcribes the base sequence from DNA by the process called...

that makes RNA, known as RNA polymerase, must attach to the DNA near a gene. Promoters contain specific DNA sequences which give the RNA polymerase a...

order specified by mRNA. It uses transfer RNA (tRNA) molecules to carry amino acids and to read the mRNA. The molecules read the mRNA three nucleotides...

transcriptase is an enzyme which works 'backwards' from RNA to DNA. Normal transcription involves the synthesis of RNA from DNA; reverse transcription is the reverse...

A nucleobase is a part of RNA and DNA which may be involved in pairing (see base pair). Nucleobases are important for genetics. They include cytosine...

Nucleic acids are long chain molecules which are of two kinds: DNA and RNA. Their building blocks are called nucleotides. DNA is found in every cell...

protein transcription – the process of making messenger RNA (mRNA) from a DNA template by RNA polymerase transcription factor – a protein that binds to...

inhibition of RNA polymerase II, a vital enzyme in the synthesis of messenger RNA (mRNA), microRNA (miRNA), and small nuclear RNA (snRNA). Without mRNA, essential...

contiguous strings but contain introns, and that the splicing of messenger RNA to delete those introns can occur in different ways, yielding different proteins...

Pharmaceutical. The vaccine is given by injection. It is an RNA vaccine made of nucleoside-modified mRNA which is meant to create spike protein of SARS-CoV-2...

non-coding RNA molecules, such as transfer RNA, ribosomal RNA, and regulatory RNAs. Other sequences are not transcribed at all, or give rise to RNA of unknown...

of the genome composed of exons. In RNA, introns are removed by RNA splicing. That leaves the sections of the RNA which actually code for the final protein...

The exosome complex is a protein complex which can degrade RNA strands (~stop them working). In eukaryotic cells, the exosome complex is present in the...

(1977). "A map of cytoplasmic RNA transcripts from lytic adenovirus type 2, determined by electron microscopy of RNA:DNA hybrids". Cell. 11 (4): 819–836...

Guanine is one of the five main nucleobases found in the nucleic acids DNA and RNA. The others are adenine, cytosine, thymine, and uracil. With the formula...

silencing is done by blocking or destroying the mRNA of a particular gene. The destruction of the mRNA prevents translation to form an active gene product...

around it but the things inside it do not. Inside it are many proteins, RNA molecules, chromosomes and the nucleolus. In the nucleolus ribosomes are...

published in Nature. In 1986, Gilbert used the phrase RNA world hypothesis for the origin of life. 'RNA World' was a concept first proposed by Carl Woese...

Medicine, which he won for describing the structures for alanine transfer RNA, linking DNA and protein synthesis. "The Nobel Prize in Physiology or Medicine...