Example sentences of "has [been] show [to-vb] a [adj] " in BNC.
Next page| No | Sentence |
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| 1 | One kinase that appears to be ideally placed to modulate transcription factor activity is the DNA-dependent protein kinase ( DNA-PK ) that has been shown to phosphorylate a wide variety of transcription factors in vitro . |
| 2 | But this natural partially effective response might be enhanced by immunization , and recently a bacterial CTL epitope identified in mice using a class I motif has been shown to induce a protective response after immunization . |
| 3 | Recently , PCNA , an auxiliary protein of DNA polymerase-delta , has been shown to play a critical role in the initiation of cell proliferation . |
| 4 | Human papillomavirus has been shown to play a causal part in cervical neoplasia . |
| 5 | One has been shown to have a direct effect on killing cancer cells while leaving normal cells unharmed . |
| 6 | This information has been shown to make a significant contribution to the recognition process , and is described in detail in Chapter Four . |
| 7 | It has been shown to make a significant contribution to text recognition , and the results are described in Chapter Three . |