RNA world
The RNA world hypothesis proposes that self-replicating ribonucleic acid (RNA) molecules were precursors to all current life on Earth. It is generally accepted that current life on Earth descends from...
RNA world - Wikipedia
A Newly Made RNA Strand Bolsters Ideas About How Life On Earth Began
RNA molecule is able to synthesize other RNAs, a feat believed central to the origin of life
Tracing Our 'Tree Of Life' To Its Roots: 3.8 Billion-Year-Old Molecule Reveals Clues About How Life On Earth Began...And It Could Help Us Find Aliens On Other Planets
By studying molecules in living human cells, researchers believe they have been able to trace the evolution of biology back to its roots. Experts from Georgia Institute of Technology have discovered t...
Biologists Unravel Drug-Resistance Mechanism In Tumor Cells
About half of all tumors are missing a gene called p53, which helps healthy cells prevent genetic mutations. Many of these tumors develop resistance to chemotherapy drugs that kill cells by damaging t...
Increasing Lifespans By Changing Our RNA
The things we do to extend our lives--quitting smoking, cutting back on carbs, taking up jogging --all have some impact on our longevity, if only just a little. But no matter how hard we work towards...
New Letters Added To The Genetic Alphabet
Nearly 30 years ago, Benner sketched out better versions of both DNA and its chemical cousin RNA, adding new letters and other additions that would expand their repertoire of chemical feats. He wonder...
Massachusetts General Research Team Evolves CRISPR-Cas9 Nucleases With Novel Properties
A team of Massachusetts General Hospital researchers has found a way to expand the use and precision of the powerful gene-editing tools called CRISPR-Cas9 RNA-guided nucleases. In their report receivi...
“Freezing A Bullet” To Find Clues To Ribosome Assembly Process
Ribosomes are vital to the function of all living cells. Using the genetic information from RNA, these large molecular complexes build proteins by linking amino acids together in a specific order. Sci...
Researchers may have solved origin-of-life conundrum
Now, researchers say they may have solved these paradoxes. Chemists report today that a pair of simple compounds, which would have been abundant on early Earth, can give rise to a network of simple re...
CRISPR Natural History in Bacteria
Doudna was not a gray-haired emerita being celebrated for work she did back when dirigibles ruled the sky. It was only in 2012 that Doudna, Charpentier and their colleagues offered the first demonstra...
How Did the Code Of Life Pass Through Primitive Cells?
Scientists hope to create artificial cells that closely mimic what biological ones do so that it would be easy to create laboratory conditions to test out how they evolve.
RNA's Secret Life Outside the Cell
Circulating RNAs carry messages between the cells of plants and invertebrates. Do they do the same for us?
RNA interference (RNAi): by Nature Video - YouTube
RNA interference (RNAi) is an important process, used by many different organisms to regulate the activity of genes. This animation explains how RNAi works a...
RNA
RNA is synthesized from DNA, and enters the ribosome where protein translation and synthesis occurs.
Ribozyme
Ribozymes (ribonucleic acid enzymes), also termed catalytic RNA, are RNA molecules that are capable of catalyzing specific biochemical reactions, similar to the action of protein enzymes. The 1982 dis...
Ribozyme - Wikipedia
RNA
Ribonucleic acid (RNA) is a polymeric molecule. It is implicated in various biological roles in coding, decoding, regulation, and expression of genes. DNA and RNA are nucleic acids, and, along with pr...
RNA - Wikipedia
Riboswitch
In molecular biology, a riboswitch is a regulatory segment of a messenger RNA molecule that binds a small molecule, resulting in a change in production of the proteins encoded by the mRNA. Thus, an m...
Riboswitch - Wikipedia
Cyclic di-GMP-II riboswitch
Cyclic di-GMP-II riboswitches (also c-di-GMP-II riboswitches) form a class of riboswitches that specifically bind cyclic di-GMP, a second messenger used in multiple bacterial processes such as virulen...
Cyclic di-GMP-II riboswitch - Wikipedia
A Newly Made RNA Strand Bolsters Ideas About How Life On Earth Began
RNA molecule is able to synthesize other RNAs, a feat believed central to the origin of life
Mir-126
In molecular biology mir-126 is a short non-coding RNA molecule. MicroRNAs function to regulate the expression levels of other genes by several pre- and post-transcription mechanisms. mir-126 is a hum...
Mir-126 - Wikipedia
MT-RNR2
Mitochondrially encoded 16S RNA (often abbreviated as 16S) is a mitochondrial ribosomal RNA (rRNA) that in humans is encoded by the MT-RNR2 gene. The MT-RNR2 gene also encodes the Humanin polypeptide ...
Epstein-Barr virus nuclear antigen (EBNA) IRES
The Epstein–Barr virus nuclear-antigen internal ribosome entry site (EBNA IRES) is an internal ribosome entry site (IRES) that is found in an exon in the 5' untranslated region of the Epstein–Barr vir...
Epstein-Barr virus nuclear antigen (EBNA) IRES - Wikipedia
Bacteroid-trp RNA motif
The Bacteroid-trp RNA motif is a conserved RNA element detected by bioinformatics. It is found in the phylum Bacteroidetes in the apparent 5' untranslated regions of genes that encode enzymes used in...
Bacteroid-trp RNA motif - Wikipedia
40S
Ribosomal particles are denoted according to their sedimentation coefficients in Svedberg units. The 40S subunit is the small subunit of eukaryotic 80S ribosomes. It is structurally and functionally r...
40S - Wikipedia
Mir-10 microRNA precursor family
The miR-10 microRNA precursor is a short non-coding RNA gene involved in gene regulation. It is part of an RNA gene family which contains miR-10, miR-51, miR-57, miR-99 and miR-100. miR-10, miR-99 a...
Mir-10 microRNA precursor family - Wikipedia
Spi-1 (PU.1) 5' UTR regulatory element
The Spi-1 (PU.1) 5' UTR regulatory element is an RNA element found in the 5' UTR of Spi-1 mRNA which is able to inhibit the translation Spi-1 transcripts by 8-fold. Spi-1 regulates myeloid gene expres...
Spi-1 (PU.1) 5' UTR regulatory element - Wikipedia
HgcF RNA
The HgcF RNA gene is a non-coding RNA identified computationally and experimentally verified in AT-rich hyperthermophiles. The genes were named hgcA through hgcG ("high GC"). The molecular function of...
HgcF RNA - Wikipedia
Small Cajal body specific RNA 11
In molecular biology, Small Cajal body specific RNA 11 (also known as scaRNA11 or ACA57) is a small nucleolar RNA found in Cajal bodies.scaRNAs are a specific class of small nuclear RNAs which localis...
Small Cajal body specific RNA 11 - Wikipedia
Y RNA
Y RNAs are small non-coding RNAs. They are components of the Ro60 ribonucleoprotein particle which is a target of autoimmune antibodies in patients with systemic lupus erythematosus. They are also nec...
Y RNA - Wikipedia
ST7-AS1 (gene)
In molecular biology, ST7 antisense RNA 1 (non-protein coding), also known as ST7-AS1 is a long non-coding RNA. In humans, it is found on chromosome 7 in a locus spanning a translocation breakpoint as...