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Translation is one of the key energy consumers in cells, hence it is strictly regulated. Numerous mechanisms have evolved that control and regulate translation in eukaryotes as well as prokaryotes. Regulation of translation can impact the global rate of protein synthesis which is closely coupled to the metabolic and proliferative state of a cell.
carries out glycolysis: single-membrane compartment: Some protozoa, such as Trypanosomes. glyoxysome: conversion of fat into sugars: single-membrane compartment: plants hydrogenosome: energy & hydrogen production: double-membrane compartment: a few unicellular eukaryotes lysosome: breakdown of large molecules (e.g., proteins + polysaccharides)
A ribosome is made up of two subunits, a small subunit, and a large subunit. These subunits come together before the translation of mRNA into a protein to provide a location for translation to be carried out and a polypeptide to be produced. [3] The choice of amino acid type to add is determined by a messenger RNA (mRNA) molecule. Each amino ...
Some countries recognize self-declared competence. Others require the translator to be an official state appointee. In some countries, such as the United Kingdom, certain government institutions require that translators be accredited by certain translation institutes or associations in order to be able to carry out certified translations.
Pre-mRNA must be processed for translation to proceed. Processing includes the addition of a 5' cap and a poly-A tail to the pre-mRNA chain, followed by splicing. Alternative splicing occurs when appropriate, increasing the diversity of the proteins that any single mRNA can produce. The product of the entire transcription process (that began ...
Once translation initiation is complete, the first aminoacyl tRNA is located in the P/P site, ready for the elongation cycle described below. During translation elongation, tRNA first binds to the ribosome as part of a complex with elongation factor Tu or its eukaryotic or archaeal counterpart. This initial tRNA binding site is called the A/T site.
Carry on: An order given to continue work or duties. [11] Cast off: To throw off, to let go, to unfurl. [11] Colours: Raising and lowering of the National Ensign, the National flag, and organization flags. [11] Fathom: Unit of measurement generally used for depth from sea level to sea floor. [11] General Quarters: Battle stations. [11]
Protein synthesis can be divided broadly into two phases: transcription and translation. During transcription, a section of DNA encoding a protein, known as a gene, is converted into a molecule called messenger RNA (mRNA). This conversion is carried out by enzymes, known as RNA polymerases, in the nucleus of the cell. [2]