Polypeptide: Difference between revisions
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A '''polypeptide''' is a chain of | {{subpages}} | ||
A '''polypeptide''' is a chain of amino acids synthesized by a [[ribosome]] using an [[mRNA]] template. (It is later folds into a [[protein]].) | |||
==The process of protein synthesis== | ==The process of protein synthesis== | ||
''See also: [[Protein synthesis]]'' | ''See also: [[Protein synthesis]]'' | ||
After the mRNA has been [[transcribed]] from the DNA in a cell's nucleus, it is modified ( | After the mRNA has been [[transcribed]] from the DNA in a cell's nucleus, it is processed and modified (in eucaryotic cells this entails removing [[intron]], capping the 5'-end and adding a poly-A tail to the 3'-end), and then transported out of the nucleus into the [[cytoplasm]]. There, it is met by the large and small subunits of a [[ribosome]] and [[translation]] begins, producing a string of [[amino acid]]s whose order is coded by the mRNA template. | ||
==References== | ==References== | ||
<references/> | <references/> | ||
Revision as of 10:44, 19 March 2009
A polypeptide is a chain of amino acids synthesized by a ribosome using an mRNA template. (It is later folds into a protein.)
The process of protein synthesis
See also: Protein synthesis
After the mRNA has been transcribed from the DNA in a cell's nucleus, it is processed and modified (in eucaryotic cells this entails removing intron, capping the 5'-end and adding a poly-A tail to the 3'-end), and then transported out of the nucleus into the cytoplasm. There, it is met by the large and small subunits of a ribosome and translation begins, producing a string of amino acids whose order is coded by the mRNA template.