Protein biosynthesis
Protein Biosynthesis refers to the process whereby biological cells generate new proteins; it is balanced by the loss of cellular proteins via degradation or export. Translation, the assembly of prote...
Protein biosynthesis - Wikipedia
Researchers Discover the Moment Alzheimer's disease Is Triggered
Researchers discover the moment Alzheimer's disease is triggered.
Drew Berry: Animations of unseeable biology
http://www.ted.com We have no ways to directly observe molecules and what they do -- Drew Berry wants to change that. At TEDxSydney he shows his scientifically accurate (and entertaining!) animations ...
A Day in the Life of a Motor Protein
The primary aim of the Hoogenraad research lab at the University of Utrecht, the Netherlands, is to understand how intracellular protein transport underlies the development and function of nerve cells...
Scientists Discover Why X Chromosome Lack Housekeeping Genes
Men have one copy, women have two, but scientists have long puzzled over why the human X chromosome mostly contains genes that are active in a small number of tissues. Now, a team of researchers led b...
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...
New Findings Shed Light On Fundamental Process Of DNA Repair
Inside the trillions of cells that make up the human body, things are rarely silent. Molecules are constantly being made, moved, and modified — and during these processes, mistakes are sometimes made....
New Evidence Emerges On The Origins Of Life On Earth
In the beginning, there were simple chemicals. And they produced amino acids that eventually became the proteins necessary to create single cells. And the single cells became plants and animals. Recen...
“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...
DNA Transcription (Advanced)
Transcription is the process by which the information in DNA is copied into messenger RNA (mRNA) for protein production. Originally created for DNA Interacti...
Transfer RNA
Transfer RNA.
RNA Splicing - YouTube
A 3D animation shows the crucial RNA editing step called splicing Originally created for Learn About Spinal Muscular Atrophy ( http://www.learnaboutsma.org/ ...
Protein biosynthesis - Transcription and Translation
This is another clip from the PBS production DNA: The Secret of Life. A Windfall Films Production for Thirteen/WNET New York in association with Channel Four...
Ribosome
The job of the mRNA is to carry the gene's message from the DNA out of the nucleus to a ribosome for production of the particular protein that this gene code...
mRNA Translation (Advanced)
The job of the mRNA is to carry the gene's message from the DNA out of the nucleus to a ribosome for production of the particular protein that this gene code...
Cell signaling - Cell-Cell Interactions
Continuing with my BIO101 lecture notes (May 08, 2006). As always, please correct my errors and make suggestions in the comments. ————————————————- BIO101 – Bora Zivkovic – Lecture 1 – Part 4 Cell-cel...
Amino acid synthesis
Amino acid synthesis is the set of biochemical processes (metabolic pathways) by which the various amino acids are produced from other compounds. The substrates for these processes are various compoun...
Amino acid synthesis - Wikipedia
Cell signaling
Cell signalling is part of a complex system of communication that governs basic cellular activities and coordinates cell actions. The ability of cells to perceive and correctly respond to their microe...
Cell signaling - Wikipedia
Signal transduction
Signal transduction occurs when an extracellular signaling molecule activates a specific receptor located on the cell surface or inside the cell. In turn, this receptor triggers a biochemical chain of...
Signal transduction - Wikipedia
Gene expression
Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product. These products are often proteins, but in non-protein coding genes such as transf...
Gene expression - Wikipedia
Transcription (genetics)
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase.Both RNA and DNA are nucleic acids, which use base pairs of nuc...
Transcription (genetics) - Wikipedia
RNA splicing
In molecular biology and genetics, splicing is a modification of the nascent pre-messenger RNA (pre-mRNA) transcript in which introns are removed and exons are joined. For nuclear encoded genes, splic...
RNA splicing - Wikipedia
RNA editing
RNA editing is a molecular process through which some cells can make discrete changes to specific nucleotide sequences within a RNA molecule after it has been generated by RNA polymerase. RNA editing ...
RNA editing - Wikipedia
Messenger RNA
Messenger RNA (mRNA) is a large family of RNA molecules that convey genetic information from DNA to the ribosome, where they specify the amino acid sequence of the protein products of gene expression....
Amino acid
Amino acids (/əˈmiːnoʊ/, /əˈmaɪnoʊ/, or /ˈæmɪnoʊ/) are biologically important organic compounds composed of amine (-NH2) and carboxylic acid (-COOH) functional groups, along with a side-chain specific...
Amino acid - Wikipedia
Transfer RNA
A transfer RNA (abbreviated tRNA and archaically referred to as sRNA, for soluble RNA) is an adaptor molecule composed of RNA, typically 76 to 90 nucleotides in length, that serves as the physical lin...
Transfer RNA - Wikipedia
Ribosome
The ribosome is a large and complex molecular machine, found within all living cells, that serves as the site of biological protein synthesis (translation). Ribosomes link amino acids together in the ...
Ribosome - Wikipedia
Translation (biology)
In molecular biology and genetics, translation is the process in which cellular ribosomes create proteins.In translation, messenger RNA (mRNA)—produced by transcription from DNA—is decoded by a riboso...
Translation (biology) - Wikipedia
Protein precursor
A protein precursor, also called a pro-protein or pro-peptide, is an inactive protein (or peptide) that can be turned into an active form by posttranslational modification. The name of the precursor f...
Posttranslational modification
Posttranslational modification (PTM) is a step in protein biosynthesis. Proteins are created by ribosomes translating mRNA into polypeptide chains. These polypeptide chains undergo PTM (such as foldi...
Posttranslational modification - Wikipedia