[Spectral analysis of nucleotide sequences]. 1989

A A Deev, and I M Edintsov, and G R Ivanitskiĭ, and A S Kuninskiĭ

The data of Fourier-analysis of nucleotide sequences are discussed. The existence of reflexes corresponding to regular position of nucleotides (mainly T and G) with 3-base period is the most striking feature of both phage and viral nucleic acid sequences spectra. The amplitude and phase of the similar reflexes in the dinucleotide spectra obtained by digital computing of Fourier-transform, give specific information on amino acid composition, codon bias, amino acid relations. The width of frequency band characterizes a tendency to nucleotide clustering or to separate existence. The blurring of reflexes shows the disturbance of far order in the regular nucleotide "lattice". The two-dimensional spectral analysis supports the existence of far correlation in nucleotide positions.

UI MeSH Term Description Entries
D005583 Fourier Analysis Analysis based on the mathematical function first formulated by Jean-Baptiste-Joseph Fourier in 1807. The function, known as the Fourier transform, describes the sinusoidal pattern of any fluctuating pattern in the physical world in terms of its amplitude and its phase. It has broad applications in biomedicine, e.g., analysis of the x-ray crystallography data pivotal in identifying the double helical nature of DNA and in analysis of other molecules, including viruses, and the modified back-projection algorithm universally used in computerized tomography imaging, etc. (From Segen, The Dictionary of Modern Medicine, 1992) Fourier Series,Fourier Transform,Analysis, Cyclic,Analysis, Fourier,Cyclic Analysis,Analyses, Cyclic,Cyclic Analyses,Series, Fourier,Transform, Fourier
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D013057 Spectrum Analysis The measurement of the amplitude of the components of a complex waveform throughout the frequency range of the waveform. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Spectroscopy,Analysis, Spectrum,Spectrometry
D013604 T-Phages A series of 7 virulent phages which infect E. coli. The T-even phages T2, T4; (BACTERIOPHAGE T4), and T6, and the phage T5 are called "autonomously virulent" because they cause cessation of all bacterial metabolism on infection. Phages T1, T3; (BACTERIOPHAGE T3), and T7; (BACTERIOPHAGE T7) are called "dependent virulent" because they depend on continued bacterial metabolism during the lytic cycle. The T-even phages contain 5-hydroxymethylcytosine in place of ordinary cytosine in their DNA. Bacteriophages T,Coliphages T,Phages T,T Phages,T-Phage

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