Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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You are working with a fly hair cell developmental system.
This Notch/Delta-regulated system results in clusters of cells where the central one differentiates
into a specialized hair cell.
To better understand this system you have tagged the C-terminal cytoplasmic domain of Notch
with GFP.
You have done a forward genetic screen to look for mutants that have unusual phenotypes in this
Notch system.
The first one is a mutation in Notch itself. This mutant is in the ADAM10 cleavage site and blocks
proteolysis. Draw the expected outcome for such a mutant: GFP localization and developmental
outcome 24hr after differentiation.
WT before differentiation
WT 24 hours after differentiation
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Transcribed Image Text:You are working with a fly hair cell developmental system. This Notch/Delta-regulated system results in clusters of cells where the central one differentiates into a specialized hair cell. To better understand this system you have tagged the C-terminal cytoplasmic domain of Notch with GFP. You have done a forward genetic screen to look for mutants that have unusual phenotypes in this Notch system. The first one is a mutation in Notch itself. This mutant is in the ADAM10 cleavage site and blocks proteolysis. Draw the expected outcome for such a mutant: GFP localization and developmental outcome 24hr after differentiation. WT before differentiation WT 24 hours after differentiation
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