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J Theor Biol. 1983 Nov 7;105(1):133-45.

Correlation between thermal stability maps and genetic maps of double-stranded DNAs.


The positional correlation of boundaries of cooperatively melting regions with boundaries of protein coding regions and mere open reading frames, and with cleavage sites of restriction enzymes and S1 nuclease are statistically examined for phi X174, G4, fd, SV40, BKV, and polyoma DNAs. A statistically significant correlation does exist in the case of boundaries of protein coding regions, but none is detected for boundaries of mere open reading frames or cleavage sites of restriction enzymes and S1 nuclease. The significant correlation disappears when the cooperativity of melting of the DNA double strand decreases to a nonphysiological condition. The result presents the first evidence showing that a physical property of DNAs correlates with their biological function.

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