BIOL 2P03 Lecture Notes - Lecture 3: Protein Precursor, Inner Membrane, Phospholipid
16 Jun 2016
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Q] the synthesis of a protein using information encoded in mrna is known as: translation. Proteins are first transcribed and then translated. Ribosomes take information from mrna and translated into proteins. Describe how the location of a protein or transporter relates to its function. Transporters = receptor that detects a signal form the extracellular fluid want it on the plasma membrane. Enzymes in glycolysis want in cytosol so they can come into contact with the glucose break it down generate atp and intermediates. Proteins do not work in isolation: they are constantly interacting with other proteins, substrates and regulators. If a protein is an enzyme, it needs to be in the same location as its substrates: hexokinase is the first enzyme in glycolysis. It needs to be in the cytosol where glucose is found: dna polymerase replicates dna. Transport proteins and receptors must be embedded in the membrane to perform their normal functions.
