这个词是什么意思？
Transcription factors that form transcription initiation complexes on DNA, bind to specific DNA-DIRECTED RNA POLYMERASES and are required to initiate transcription. Although their binding may be localized to distinct sequence and structural motifs within the DNA they are considered non-specific with regard to the specific gene being transcribed.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D035165 · MeSH 2026。
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