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In page Transcription factor:

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There are different technologies available to analyze transcription factors. On the genomic level, DNA-sequencing and database research are commonly used.[1] The protein version of the transcription factor is detectable by using specific antibodies. The sample is detected on a western blot. By using electrophoretic mobility shift assay (EMSA),[2] the activation profile of transcription factors can be detected. A multiplex approach for activation profiling is a TF chip system where several different transcription factors can be detected in parallel.[citation needed]