Mitochondrial DNA of the yeast Kluyveromyces: guanine-cytosine rich sequence clusters. |
| |
Authors: | A Ragnini and H Fukuhara |
| |
Institution: | Institut Curie, Section de Biologie, Centre Universitaire, Orsay, France. |
| |
Abstract: | Mitochondrial DNA from the yeast Kluyveromyces marxianus var. lactis (K.lactis) is a circular molecule of 39 kilobase-pairs. A genetic and physical map was constructed. We found that this genome contained a large number of guanine-cytosine (GC)-rich sequence clusters, many of which are characterized by the presence of SacII restriction sites (CCGCGG). The primary sequence of the GC clusters often showed a palindromic structure. These GC clusters were present in several varieties of K.marxianus, but not in others. The presence of these clusters is a major feature that distinguishes K.lactis strains from those of K.marxianus var. marxianus (including K.fragilis). |
| |
Keywords: | |
|
|