Structure of d(TGCGCA)₂ at 293 K: comparison of the effects of sequence and temperature

The crystal structure of a hexameric DNA fragment with the sequence d(TGCGCA)₂ has been solved and refined at 293 K at a resolution of 1.64 Å. A comparison of the present structure with that at low temperature and with that of d(CGCGCG)₂ throws light on the effects of the sequence and of temperature on the duplex structure of Z-DNA hexamers.