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A codon table can be used to translate a genetic code into a sequence of amino acids. [1] [2] The standard genetic code is traditionally represented as an RNA codon table, because when proteins are made in a cell by ribosomes, it is messenger RNA (mRNA) that directs protein synthesis. [2] [3] The mRNA sequence is determined by the sequence of ...
If amino acids were randomly assigned to triplet codons, there would be 1.5 × 10 84 possible genetic codes. [81]: 163 This number is found by calculating the number of ways that 21 items (20 amino acids plus one stop) can be placed in 64 bins, wherein each item is used at least once. [82]
The choice of amino acid type to add is determined by a messenger RNA (mRNA) molecule. Each amino acid added is matched to a three-nucleotide subsequence of the mRNA. For each such triplet possible, the corresponding amino acid is accepted. The successive amino acids added to the chain are matched to successive nucleotide triplets in the mRNA.
Duval Street (/ ˈ d uː v əl /) is a downtown commercial zoned street in Key West, Florida, running north and south from the Gulf of Mexico to the Atlantic Ocean, just over 1.25 miles in length. It is named for William Pope Duval , the first territorial governor of Florida.
Shorty’s Diner on Duval Street was a favorite of President Harry Truman, who walked to breakfast when he stayed at the Little White House in Key West. Shorty’s closed in 1989. Miami Herald File
Eukaryotic mRNA precursors must be processed in the nucleus (e.g., capping, polyadenylation, splicing) in ribosomes before they are exported to the cytoplasm for translation. Translation can also be affected by ribosomal pausing, which can trigger endonucleolytic attack of the tRNA, a process termed mRNA no-go decay. Ribosomal pausing also aids ...
English: Photo taken by the Property Appraiser's office; 623 Duval Street; built c1912; destroyed by fire 1995; Monroe Theater; Sqr 61, Pt Lot 4 Marquee shows film "The Last Sunset", which was released in June 1961. To the left of the theater is a shop with sign "Best Home Equipment Inc".
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 with the production of the pre-mRNA chain) is a mature ...