CH3 CH3 CpG island Core promoter CH3 CH3 CH3 Enhancer CpG island Core promoter CH, Chromatin in an open conformation A methyl-CpG-binding protein binds to the methylated CpG Island. Activator Coding sequence protein Methylation CH3 ÇH3 CH, CH, CH3 CH CH3 CH, CH CH CH сн, сн, сн, Methyl groups block the binding of an actvator protein to an enhancer element. Methyl-CpG- binding protein The methyl-CpG-binding protein recrults other proteins, such as histone deacetylase, that convert the chromatin to a closed conformation. Chromatin (a) Methylatlon Inhibits the binding of an activator proteln. In a dosed conformation CH, CH, CH, CH CH3 CH3 CH, Histone deacetylase (b) Methyl-CpG-binding proteln recrults other protelns that change the chromatin to a closed conformation.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Explain why the events shown in part (a) inhibit
transcription.

CH3
CH3
CpG island
Core promoter
CH3
CH3
CH3
Enhancer
CpG island
Core promoter
CH,
Chromatin
in an open
conformation
A methyl-CpG-binding protein
binds to the methylated
CpG Island.
Activator
Coding sequence
protein
Methylation
CH3
ÇH3
CH, CH,
CH3
CH
CH3
CH,
CH
CH
CH
сн, сн, сн,
Methyl groups block the
binding of an actvator protein
to an enhancer element.
Methyl-CpG-
binding protein
The methyl-CpG-binding protein
recrults other proteins, such as
histone deacetylase, that convert
the chromatin to a closed
conformation.
Chromatin
(a) Methylatlon Inhibits the binding of an activator proteln.
In a dosed
conformation
CH, CH, CH,
CH
CH3
CH3
CH,
Histone
deacetylase
(b) Methyl-CpG-binding proteln recrults other protelns that change
the chromatin to a closed conformation.
Transcribed Image Text:CH3 CH3 CpG island Core promoter CH3 CH3 CH3 Enhancer CpG island Core promoter CH, Chromatin in an open conformation A methyl-CpG-binding protein binds to the methylated CpG Island. Activator Coding sequence protein Methylation CH3 ÇH3 CH, CH, CH3 CH CH3 CH, CH CH CH сн, сн, сн, Methyl groups block the binding of an actvator protein to an enhancer element. Methyl-CpG- binding protein The methyl-CpG-binding protein recrults other proteins, such as histone deacetylase, that convert the chromatin to a closed conformation. Chromatin (a) Methylatlon Inhibits the binding of an activator proteln. In a dosed conformation CH, CH, CH, CH CH3 CH3 CH, Histone deacetylase (b) Methyl-CpG-binding proteln recrults other protelns that change the chromatin to a closed conformation.
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