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11 Cards in this Set
- Front
- Back
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XIST regulatory RNA
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Regulates X chromosome inactivation. The XIST regulatory RNA is specifically transcribed on the inactive X chromosome.
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Polycomb Complex
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Methylates and ubiquitinates histones, leading to closed chromatin
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RNA polymerase II (Pol II)
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Required for transcription of DNA to mRNA
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Pol I
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Transcribes DNA into ribosomal RNA
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Pol III
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Transcribes DNA into transfer RNA
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BRE
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TFIIB recognition element
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TATA box
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Binds TBP (tata binding protein) subunit of TFIID
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INR
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Initiator sequence for transcription
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DPE
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downstream core promotor element (for transcription)
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Lysine Crotonylation (Kcf)
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A form of histone modification
- appears to mark active promotors or potential enhancers - detected on all core histones |
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Stages of Transcription
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Initiation
- Pol II binds, melts DNA, catalyzes phosphodiester linkage of two initial rNTPs Elongation - polymerase advances 3'->5' Termination - pol II releases RNA and dissociates from DNA |
