PubMed Health⌕ Search

Biomedical subjects

N SUEOKA

Publications and source records attributed to N SUEOKA.

17 recordsLinked to original sources
PubMed1964

POLYMER SIMILAR TO POLYDEOXYADENYLATE-THYMIDYLATE IN VARIOUS TISSUES OF A MARINE CRAB.

Several species of a genus Cancer have a DNA that has a light buoyant density and that contains mainly deoxyadenylate and thymidylate. The presence of this polymer was demonstrated previously in testes and vas deferens. By a modified procedure for isolating DNA, the muscles, liver, and eggs of Cancer borealis are also shown to contain the deoxyadenylate-thymidylate-like polymer.

Adenine Nucleotides↗
PubMed1963

HETEROGENEITY OF DNA IN DENSITY AND BASE COMPOSITION.

Chromatography, on methylated-albumin columns, of DNA from calf thymus, mouse testis, and Bacillus subtilis, yielded, on elution by a sodium chloride gradient, fractions differing in density. The fractions eluted by higher sodium chloride concentrations had lower densities in a CsCl density gradient. Since DNA with higher guaninecytosine content is eluted from the column with lower concentration of sodium chloride and has higher density, the density heterogeneity of DNA is best interpreted as a result of heterogeneity of base composition. An extra band observed in calf-thymus DNA had a higher density than that of the main DNA; it was eluted at a lower concentration of NaCl, indicating a higher content of guanine and cytosine. On the other hand, an additional DNA component in the mouse-testis DNA had a lower density and also it was eluted at a lower salt concentration, possibly an indication of an unusual base component in its structure.

Animals↗