(jyin)

Race #15

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Official speed 119.99 wpm (45.70 seconds elapsed during race)
Race Start February 3, 2019 12:59:16am UTC
Race Finish February 3, 2019 1:00:01am UTC
Outcome Win (1 of 2)
Opponents 2. singleflips (91.94 wpm)
Accuracy 98.0%
Points 169.98
Text #4190302 (Length: 457 characters)

The novel feature of the structure is the manner in which the two chains are held together by the purine and pyrimidine bases. The planes of the bases are perpendicular to the fiber axis. They are joined together in pairs, a single base from one chain being hydrogen bonded to a single base from the other chain, so that the two lie side by side with identical z-coordinates. One of the pair must be a purine and the other a pyrimidine for bonding to occur.