Example sentences of "complex formed at the " in BNC.
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| 1 | These results suggested that open complexes formed at the φ29 P A2b and P A3 promoters are unstable , and that initiated complexes are stable enough to resist the heparin challenge and give rise to elongation complexes . |
| 2 | Open complexes formed at the E.coli rrnB and rrnD P 1 promoters decay within seconds in the presence of heparin ( 9,10 ) , indicating that the complexes are unstable and equilibrate rapidly either with free enzyme ( 10 ) or with a closed complex that is sensitive to competitor challenge ( 33 ) . |
| 3 | The degree of supercoiling imposed on the viral genome in vivo is not known , but our experiments show that a moderate superhelical density can exert an stabilizing effect on the open complexes formed at the P A2b and P A3 promoters , which should be important in facilitating the transition into elongation complexes . |
| 4 | The presence of the first two initiating NTPs could stabilize , at least to a partial extent , open complexes formed at the φ29 A2b and A3 promoters ( this work ) and at the φ29 C1 promoter ( 39 ) . |
| 5 | DNA supercoiling has been shown to stabilize the open complexes formed at the E.coli rrnB P1 promoter ( 9 ) and at the B.subtilis phage φ29 P A2b and P A3 promoters ( this work ) . |
| 6 | Sensitivity to heparin challenge of open or initiated complexes formed at the φ29 P A2b and P A3 promoters . |
| 7 | Effect of DNA supercoiling on the stability of open complexes formed at the φ29 P A2b and P A3 promoters . |
| 8 | Effect of the ionic strength on the stability of open or initiated complexes formed at the P A2b promoter . |