Example sentences of "have [been] show [to-vb] to " in BNC.

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1 However , none of the available approaches has been shown to lead to transfection of growth arrested cells in culture at an appreciable level .
2 In animal models the presence of carcinogen DNA adducts has been shown to lead to specific mutations within DNA including the activation of known oncogenes and the persistence of DNA adducts in a tissue may be correlated with an increased risk of developing cancer in that tissue .
3 The KOX2 cDNA clone has been shown to hybridise to two loci in the pericentromeric region of human chromosome 10 , one of which ( ZNF11A ) was assigned to 10p11.2-q11.2 , while the second ( ZNF11B ) could be mapped more precisely , to 10q11.2 ( 5 ) .
4 The RAP30 subunit of TFIIF has been shown to bind to RNA polymerase II ( 25,29,40 ) .
5 DNA distribution patterns analysed by cytophotometry , however , have been shown to relate to survival in patients from Japan .
6 Nucleocapsid protein from MoMuLV , AMV and rous sarcoma virus have been shown to bind to DNA as well as to RNA and tRNA ( 12 , 14–16 ) .
7 Paradoxically however , the great majority of the cellular factors which have been shown to bind to the URR such as NFI ( 6 ) API ( 7 ) and the glucocorticoid receptor ( 5 ) are expressed in all cell types raising the question of how the epithelial-specificity of the URR is produced .
8 Other growth factors have been shown to bind to matrix components and include platelet derived growth factor ( PDGF ) , interferon-γ ( INFγ ) , acidic fibroblast growth factor ( aFGF ) , and granulocyte colony stimulating factor ( GM-CSF ) .
9 Some of these have been shown to bind to a specific octamer DNA motif ( 2 , 16-18 ) .
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