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Physicochemical properties and restriction maps of simian adenovirus type 38 DNA. 1979

D H Dimitrov, and A G Dubitchev, and B S Naroditsky, and R S Dreizin, and T I Tikchonenko

The sedimentation constant of simian virus type 38 (SV-38) DNA was estimated to be 31.6S. The intrinsic viscosity of DNA was on average 86.5 dl/g and the length of the molecule determined by electron microscopy was 10.6 micrometer. The average mol. wt., as determined by sedimentation and viscometry, was 21.5 x 10(6), which agreed well with the value derived from the length of the molecule (21.4 x 10(6)) and with the value of 21.2 x 10(6) determined by the relative electrophoretic mobility of the DNA fragments produced by restriction endonucleases EcoR1, SalI and BglII. The buoyant density of the DNA in caesium chloride and casesium sulphate was 1.7185 and 1.4295 g/ml respectively. The melting temperature of the DNA in 1 x SSC was 93.5 degrees C. The GC content calculated from p and Tm values was 59.3%. BglII cleaves SV-38 DNA at three sites producing four fragments with mol. wt.: A, 9.3 x 10(6), B, 5.6 x 10(6), C, 3.3 x 10(6); and D, 2.9 x 10(6). After treatment with EcoR1 and SalI, SV-38 DNA is cleaved into five and six fragments respectively, with mol. wt. for EcoR1 fragments: A, 8.2 x 10(6), B, 6.5 x 10(6), C, 4.0 x 10(6), D, 1.27 x 10(6); and E, 1.07 x 10(6), and for SalI fragments: A, 6.5 x 10(6); B, 5.4 x 10(6); C, 4.2 x 10(6), D, 2.8 x 10(6); E, 2.5 x 10(6) and F, 0.25 x 10(6). The sequence of fragments within the SV-38 DNA molecules for BglII was deduced to be BDCA, and for ECOR1--BCEAD.

UI MeSH Term Description Entries
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D009691 Nucleic Acid Denaturation Disruption of the secondary structure of nucleic acids by heat, extreme pH or chemical treatment. Double strand DNA is "melted" by dissociation of the non-covalent hydrogen bonds and hydrophobic interactions. Denatured DNA appears to be a single-stranded flexible structure. The effects of denaturation on RNA are similar though less pronounced and largely reversible. DNA Denaturation,DNA Melting,RNA Denaturation,Acid Denaturation, Nucleic,Denaturation, DNA,Denaturation, Nucleic Acid,Denaturation, RNA,Nucleic Acid Denaturations
D002499 Centrifugation, Density Gradient Separation of particles according to density by employing a gradient of varying densities. At equilibrium each particle settles in the gradient at a point equal to its density. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Centrifugations, Density Gradient,Density Gradient Centrifugation,Density Gradient Centrifugations,Gradient Centrifugation, Density,Gradient Centrifugations, Density
D004262 DNA Restriction Enzymes Enzymes that are part of the restriction-modification systems. They catalyze the endonucleolytic cleavage of DNA sequences which lack the species-specific methylation pattern in the host cell's DNA. Cleavage yields random or specific double-stranded fragments with terminal 5'-phosphates. The function of restriction enzymes is to destroy any foreign DNA that invades the host cell. Most have been studied in bacterial systems, but a few have been found in eukaryotic organisms. They are also used as tools for the systematic dissection and mapping of chromosomes, in the determination of base sequences of DNAs, and have made it possible to splice and recombine genes from one organism into the genome of another. EC 3.21.1. Restriction Endonucleases,DNA Restriction Enzyme,Restriction Endonuclease,Endonuclease, Restriction,Endonucleases, Restriction,Enzymes, DNA Restriction,Restriction Enzyme, DNA,Restriction Enzymes, DNA
D004279 DNA, Viral Deoxyribonucleic acid that makes up the genetic material of viruses. Viral DNA
D006358 Hot Temperature Presence of warmth or heat or a temperature notably higher than an accustomed norm. Heat,Hot Temperatures,Temperature, Hot,Temperatures, Hot
D000256 Adenoviridae A family of non-enveloped viruses infecting mammals (MASTADENOVIRUS) and birds (AVIADENOVIRUS) or both (ATADENOVIRUS). Infections may be asymptomatic or result in a variety of diseases. Adenoviruses,Ichtadenovirus,Adenovirus,Ichtadenoviruses
D000261 Adenoviruses, Simian Species of the genus MASTADENOVIRUS associated with respiratory and enteric infections in primate hosts. Simian Adenoviruses,Adenovirus, Simian,Simian Adenovirus
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
D014783 Viscosity The resistance that a gaseous or liquid system offers to flow when it is subjected to shear stress. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Viscosities

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