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Concept: Sigma-Factor

Superconcept: Nucleoprotein


Component Semantics:

Sigma-Factor
Definition: A subunit of procaryotic RNA polymerase which interacts with the promoter to signal the polymerase to initiate transcription at a specific sequence in template DNA. Lodish:MCB:347.

Relevant concepts: Promoter

Relevant concepts: SnRNP

Relevant concepts: Ribonucleoprotein

Relevant concepts: Nucleoprotein

Relevant concepts: RNA-Polymerase