DNA organization of Methanobacterium thermoautotrophicum

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Science  08 Jun 1979:
Vol. 204, Issue 4397, pp. 1082-1084
DOI: 10.1126/science.377486


The organism Methanobacterium thermoautotrophicum, an archaebacterium, is envolutionarily very distant from both traditional prokaryotes and eukaryotes. Its genome (DNA) has physical characteristics typical of most prokaryotes except that it is quite small (about 10(9) daltons, less than half the size of the genome of Escherichia coli) and contains a significant amount (6 percent) DNA which renatures extremely rapidly.