4. You develop the covalently-acting irreversible kinase inhibitor ibrutinib shown on the left that reacts potently with a cysteine in the ATP binding pocket of the cancer-promoting kinase Bruton's Tyrosin Kinase (BTK). You would like to know whether ibrutinib engages and selectively targets BTK in vivo in the tumor of a mouse model of cancer. Describe experimentally how you would use activity-based protein profiling to assess whether ibrutinib inhibited BTK in vivo in the tumor and also determine how selectively ibrutinib engaged BTK compared to other kinases in the tumor? ( NH, H₂N- N ibrutinib OH OH OH OH activity-based probe for kinases that covalently modifies active-site lysine of all kinase ATP binding pocket W ta t C

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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4. You develop the covalently-acting irreversible kinase inhibitor
ibrutinib shown on the left that reacts potently with a cysteine in the
ATP binding pocket of the cancer-promoting kinase Bruton's Tyrosine
Kinase (BTK). You would like to know whether ibrutinib engages and
selectively targets BTK in vivo in the tumor of a mouse model of
cancer. Describe experimentally how you would use activity-based
protein profiling to assess whether ibrutinib inhibited BTK in vivo in
the tumor and also determine how selectively ibrutinib engaged BTK
compared to other kinases in the tumor? (
NH₂
H₂N-
ibrutinib
OH OH
OH OH OH
activity-based probe for kinases
that covalently modifies active-site
lysine of all kinase ATP binding pocket
L
W
ta
to
C
с
Transcribed Image Text:4. You develop the covalently-acting irreversible kinase inhibitor ibrutinib shown on the left that reacts potently with a cysteine in the ATP binding pocket of the cancer-promoting kinase Bruton's Tyrosine Kinase (BTK). You would like to know whether ibrutinib engages and selectively targets BTK in vivo in the tumor of a mouse model of cancer. Describe experimentally how you would use activity-based protein profiling to assess whether ibrutinib inhibited BTK in vivo in the tumor and also determine how selectively ibrutinib engaged BTK compared to other kinases in the tumor? ( NH₂ H₂N- ibrutinib OH OH OH OH OH activity-based probe for kinases that covalently modifies active-site lysine of all kinase ATP binding pocket L W ta to C с
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