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Electronic dissertations library (3238 words) |
 | The discovery in 1992 that the entirely antiparallel motif was the most frequently occurring motif for three to eight stranded sheets is seen in 1999, and the trend continues in nine to 15 stranded sheets. |
| Antiparallel strands within a ß-sheet only require small loops of protein chain between these strands (ß-turns) to allow the sheet structure to form, whereas parallel strands require more chain between the strands to cover the distance between the top of one strand and the bottom of the next (crossover connections) (Richardson (1977); Fasman (1989b)). |
| Antiparallel strands have hydrogen bonds that are parallel to each other as the donors and acceptors are lined up opposite each other in the two strands. |
| Antiparallel - Wikipedia, the free encyclopedia (316 words) |
| Two lines are antiparallel with respect to an angle if the bisector of that angle intersects both lines at the same attitude but in opposite senses. |
| Antiparallel is commonly used in physics only in the second sense, applying to vectors or axial vectors, for instance forces or spins. |
| The antiparallel structure of DNA is important in DNA replication because it unzips the leading strand one way and the lagging strand the other way. |
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