| 摘要 |
A method for the detection of a compound within a cell comprising the steps of (a) introducing into a cell proteinaceous material comprising at least two fusion proteins or derivatives thereof or nucleic acid, encoding upon expression said fusion proteins, wherein said compound or a precursor thereof is present or expressed in said cell before said proteinaceous material is introduced into or expressed in said cell; (b) allowing expression of said nucleic acid, if applicable; and (c) assessing for a signal from said first or second signaling entity that is provided, restored, altered or influenced.
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