2008
DOI: 10.5483/bmbrep.2008.41.3.217
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2-D graphical representation of protein sequences and its application to coronavirus phylogeny

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Cited by 38 publications
(41 citation statements)
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“…Afterwards, more graphical representations of DNA sequences were well developed by researchers [1,2,[6][7][8][9][10][11][12][13][14][15]. In comparison with DNA, graphical representations of proteins emerged only very recently [2,[16][17][18][19][20][21][22][23][24][25][26][27]. As a matter of fact, most of the graphical representations of DNA involve some degree of arbitrariness, such as the selection of directions to be assigned to individual bases.…”
Section: Introductionmentioning
confidence: 99%
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“…Afterwards, more graphical representations of DNA sequences were well developed by researchers [1,2,[6][7][8][9][10][11][12][13][14][15]. In comparison with DNA, graphical representations of proteins emerged only very recently [2,[16][17][18][19][20][21][22][23][24][25][26][27]. As a matter of fact, most of the graphical representations of DNA involve some degree of arbitrariness, such as the selection of directions to be assigned to individual bases.…”
Section: Introductionmentioning
confidence: 99%
“…It is impracticable to represent one protein sequence by such an enormous number of graphs. This is probably the most important reason why protein graphical representations have not been advanced [19,23]. It is found that reducing the alphabet or fixing the directions assigned to amino acid residues plays an important role in addressing this problem.…”
Section: Introductionmentioning
confidence: 99%
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“…For a given graph, one can transform it into another mathematical object, a matrix. The matrices associated with a graph include ED, D/D, L/L, and their 'higher order' matrices [ Refs 18,[20][21][22][23][29][30][31][32]. Among them, L/L is a matrix whose elements are defined as the quotient of the Euclidean distance between a pair of vertices (dots) of the zigzag curve and the sum of distances between the same pair of vertices measured along the zigzag curve.…”
Section: E the Ale-index Based Algorithm To Examine Similarities Of mentioning
confidence: 99%
“…Because the number of types of amino acids in a protein sequence is much greater than the number of types of bases in a DNA sequence, it is difficult to directly generalize the graphical representation of a DNA sequence to that of a protein sequence [4][5][6]. One method is to classify 20 amino acids into four or five classes, and simplify the protein sequence to a sequence of four or five characters, and then use the graphical method of DNA sequences to describe the simplified protein sequence [7][8][9][10]. Another method is to ignore the similarities and differences for all amino acids and arrange them in lexicographical order directly from the sequence.…”
Section: Introductionmentioning
confidence: 99%