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A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z EElastomer: A natural or synthetic rubber or rubberoid material, which has the ability to undergo deformation under the influence of a force and regain its original shape once the force has been removed. Electrophoresis is the process in which molecules (such as proteins, DNA, or RNA fragments) can be separated according to size and electrical charge by applying an electric current to them. The current forces the molecules through pores in a thin layer of gel, a firm jelly-like substance. The gel can be made so that its pores are just the right dimensions for separating molecules within a specific range of sizes and shapes. Smaller fragments usually travel further than large ones. The process is sometimes called gel electrophoresis. Electrostatic potential A measurement of areas which are electronegative and areas which are electropositive around a molecule Energy A measure of a system's ability to do work. Energy is an abstract quantity of extreme usefulness in physics because it is defined in such a way that the total energy of any closed physical system is always constant (conservation of energy). It is impossible to overstate the importance of this concept in all branches of physics from elementary mechanics to general relativity. Energy is measured in units of mass times velocity squared, and the MKS and cgs units of energy are the Joule and erg, respectively. Other common units of energy include the Btu, calorie, and kilowatt hour. Energy density is the amount of energy stored in a given system or region of space per unit volume, and is most commonly denoted u. It therefore has units of energy per length cubed. Enzyme is a protein that encourages a biochemical reaction, usually speeding it up. Organisms could not function if they had no enzymes. Error-control: data in a packet that contains a mechanism for checking the validity and integrity of data. For example, let's say you send a five-word message. The error-control data would say that your message had five words total. If the data doesn't have five words, then the computer will know that the message is not valid. Expressed Protein Tags EPTs: Multi- cellular
organisms have been evolving a system with which they can discriminate
between cells of their own origin and other adventitious cells or cells
which have been infected with intracellular pathogens. To achieve this
goal, a family of receptors, known as multi- ligand receptors (MLR),
have evolved to be remarkably promiscuous binders of peptide ligands.
The MLR- bound ligands are derived from degradation intermediates of
cellular proteins. Typically, these ligands are 8-12 amino acids in
length. EPTs are of sufficient length to differentiate particular proteins
and/ or individual genes. Each MLR has a single binding site and thus
contains a single EPT copy. |
