Correlation of Melting Temperature and Cesium Chloride Buoyant Density of Bacterial Deoxyribonucleic Acid

Author:

Mandel M.1,Igambi Levi1,Bergendahl Janet1,Dodson M. L.1,Scheltgen E.1

Affiliation:

1. Section of Molecular Biology, The University of Texas M. D. Anderson Hospital and Tumor Institute at Houston, Houston, Texas 77025

Abstract

Samples of bacterial deoxyribonucleic acid from bacteria having guanine plus cytosine (GC) contents in the range of 27 to 72 moles per cent GC were analyzed by optical melting (T m ) and equilibrium buoyant density methods. The relation between these properties is shown to be linear. The relative value of 1.99 moles per cent GC per degree C change in T m is calculated, and a reference method for the calculation of GC contents relative to a standard is derived.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Reference17 articles.

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