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The 3′-end (three prime end) of a strand is so named due to it terminating at the hydroxyl group of the third carbon in the sugar-ring, and is known as the tail end. The 3′-hydroxyl is necessary in the synthesis of new nucleic acid molecules as it is ligated (joined) to the 5′-phosphate of a separate nucleotide, allowing the formation of ...
The 3′-end (usually pronounced "three prime end") of a negative sense strand, and the 5′-end (usually pronounced "five prime end") of a positive sense strand, is called the left end, and the 5′-end of the negative sense strand, and the 3′-end of a positive sense strand, is called the right end. [2] [4] [5]
Such a structure is composed of a cylinder with a cap at either end. The cylinder is composed of 10 elongated triangular faces. The Q number (or T mid ), which can be any positive integer, [ 19 ] specifies the number of triangles, composed of asymmetric subunits, that make up the 10 triangles of the cylinder.
The name "jelly roll" was first used for the structure composed of an elaboration on the Greek key motif by Jane S. Richardson in 1981 and was intended to reflect the structure's resemblance to a jelly or Swiss roll cake. [2] The structure has been given a variety of descriptive names, including a wedge, beta barrel, and beta roll.
A single-stranded non-circular DNA molecule has two non-identical ends, the 3' end and the 5' end (usually pronounced "three prime end" and "five prime end"). The numbers refer to the numbering of carbon atoms in the deoxyribose, which is a sugar forming an important part of the backbone of the DNA molecule. In the backbone of DNA the 5' carbon ...
The structure of the capsid allows the virus to use a small number of viral genes to make a large capsid. [3] Several protomers, oligomeric (viral) protein subunits, combine to form capsomeres, and capsomeres come together to form the capsid. [1]
During transcription, the original template strand is usually read from the 3' to the 5' end from beginning to end. Subgenomic mRNAs are created when transcription begins at the 3' end of the template strand (or 5' of the to-be-newly synthesized template) and begins to copy towards the 5' end of the template strand before "jumping" to the end of the template and copying the last nucleotides of ...
1. The coding portion of the genome is replicated, starting from the 3′-end of the 3′ hairpin, which acts as a primer, and continues until the newly synthesized strand is connected to the 5′-end of the 5′ hairpin, producing a duplex DNA molecule that has two strands of the coding portion of the genome.