Nucleic Acids Research, 1982, Vol. 10, No. 24 8181-8190
© 1982
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S1 and S2 the linear mitochondrial DNAs present in a male sterile line of maize, possess terminally attached proteins
+Plant Breeding Institute Maris Lane, Trumpington, Cambridge CB2 2LQ, UK *Department of Plant Pathology, Kansas State University Manhattan, KS 66506, USA
Received August 13, 1982. Accepted November 18, 1982.
S1 and S2 are short linear mitochondrial DNA molecules found in a particular male sterile cytoplasm of maize. We show here that these DNA molecules and two other related linear DNA species found in maize mitochondria, have proteins attached, probably covalently, to their 5 ends. This is the first demonstration of such a linear DNAterminal protein association in higher eukaryotes. Such proteins may be involved in priming replication of these DNAs.
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