Doctor Thomas Nuhse explains that proteins are the molecules in cells that perform the key functions of the cell. They are the building bricks of the cell.
Proteins are a large group of molecules, one group of the molecules of life if you will. Proteins are essentially those actors in cells that do stuff - they can degrade molecules, they can build the building bricks that our cells are made of. Some proteins also have structural functions, so the shape that our cells have is also determined by proteins in a large part. So, essentially anything that happens in the cell is brought about by proteins.
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Doctor Thomas Nuhse explains that enzymes are proteins in a cell that perform the cell's chemistry.
Doctor Thomas Nuhse explains that mass spectrometry is a technique for measuring the mass of molecules, which therefore allows researchers to identify molecules.
Doctor Thomas Nuhse explains that kinases are enzymes that are specialized for attaching a phosphate group to another protein.
Doctor Thomas Nuhse explains that phosphorylation is the process by which a phosphate is added to a protein to produce a change in that protein.
Doctor Thomas Nuhse describes the process by which proteins interact and work together to produce an outcome.
RNA was the first genetic molecule.
Stanley Miller and Harold Urey demonstrate that organic molecules can be synthesized under prebiotic conditions, and Thomas Cech and Sidney Altman show that RNA can have enzymatic activities.
Comments on some of the prevailing theories of the time and Phoebus Levene's basic hypothesis
Phoebus Levene's contributions -- the distinction between DNA and RNA.
Did Levene's tetranucleotide theory affect the development of ideas in the field of nucleic acid research?