Gattaca gattaca gattaca gattaca gattaca

Jeff Wintersinger
by Jeff Wintersinger
July 09, 2013

Gattaca is a surprisingly smart 1997 science fiction film dealing with genetic discrimination. Learning that the sequence GATTACA occurs 697,000 times in the human genome sparked my curiosity: What is the longest contiguous (natural) sequence of GATTACAs I can find? The answer, as it turns out, is five.

GATTACA times five in Botryotinia fuckeliana.

We find five consecutive occurrences of GATTACA in Botryotinia fuckeliana, the rarely observed teleomorph (i.e., sexual form) of Botrytis cinerea. (The fuckeliana name is derived, incidentally, from the mycologist Karl Wilhelm Gottlieb Leopold Fuckel.)

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