Chapter 18 biology. Regulation of Gene expression.
Can regulate the activity of an enzymatic pathway
Chemical modifications to histones and DNA that affect chromatin structure
Necessary to generate the variety of cell and tissue types in multicellular eukaryotes
Binds and activates the trp repressor protein
Determined in part by sequences in the 5 and 3 untranslated regions of the gene
Transcription factors
Genomic imprinting
Alternative splicing
Operon
Control element
Alternative splicing
Acetylation
Corepressor
Operator
Inducible operon
A molecule that cooperates with a repressor to switch an operon off.
Regulation of specific genes through transcription
Promotes chromatin packing
Inactivate repressors
A cluster of functionally related genes regulated by a single on off switch.
Operator
Corepressor
Inducer
Imprinting
Cordinate control
Produced from a gene at another locus
The switch that is a segment of DNA within the promoter
Binds another promoter sequence
Required assistance for eukaryotic RNA polymerase after the chromatin has been modified for expression
Cell specific regulatory proteins can control which alternative mRNA is transcribed
Repressors
Inducers
Enhancers
Histones
Enzymes
Acetylation
Methylation
Corepressor
Imprinting
Splicing
Loosens chromatin structure and promotes transcription initiation
Inhibits expressions of a particular gene
Produces different molecules from the same primary transcript
Binds proteins that promote mRNA stability
Genes for tryptophan synthesis are transcribed
Corepressor
Promoter
Enhancer
Operator
Acetylation
Acetylation
Differential gene expression
Operon
Epigenetic inheritance
Methylation
Genomic imprinting
Epigenetic
Enhancers
Transcription factors
Eukaryotic transcription
Produced from a gene at another locus and can switch off the operons
A molecule that cooperates with a repressor to switch an operon off
Binds another promoter sequence
Affect chromatin structure and the ability of genes to be transcribed
Loosens chromatin structure and promotes transcription initiation
Alternative RNA splicing
Repressors
Operons
Combinatorial control
Transcription factor
Epigenetic inheritance
Differential gene expression
Genomic imprinting
Distal control elements
Repressor protein
Operator
Iac repressor
Enhancer
Transcriptional activator
Inducible operon
Corepressor
Operon
Enhancer
Repressor
Initiator
Sequences of
Sequences >100 bases away from the core promoter bound by specific transcription factors
A cluster of functionally related genes regulated by an on-off switch
The expression of different genes by cells with the same genome
Chemical modifications to histones and DNA that affect chromatin structure
Inducible operon
Transcriptional activator
Methylation
Repressible operon
Acetylation
The expression of different genes by cells with the same genome
All of the components of prokaryote and eukaryote genes that allow transcription and translation to occur
Can be upstream, downstream, or within introns
Example of DNA methylation control
Binds another promoter sequence
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