The minor binding pocket: a major player in 7TM receptor activation
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The minor binding pocket: a major player in 7TM receptor activation. / Rosenkilde, Mette Marie; Benned-Jensen, Tau; Frimurer, Thomas M.; Schwartz, Thue W.
In: Trends in Pharmacological Sciences, Vol. 31, No. 12, 2010, p. 567-574.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The minor binding pocket: a major player in 7TM receptor activation
AU - Rosenkilde, Mette Marie
AU - Benned-Jensen, Tau
AU - Frimurer, Thomas M.
AU - Schwartz, Thue W.
N1 - Copyright © 2010 Elsevier Ltd. All rights reserved.
PY - 2010
Y1 - 2010
N2 - From the deep part of the main ligand-binding crevice, a minor, often shallower pocket extends between the extracellular ends of transmembrane domains (TM)-I, II, III and VII of 7TM receptors. This minor binding pocket is defined by a highly conserved kink in TM-II that is induced by a proline residue located in one of two adjacent positions. Here we argue that this minor binding pocket is important for receptor activation. Functional coupling of the receptors seems to be mediated through the hydrogen bond network located between the intracellular segments of these TMs, with the allosteric interface between TM-II and TM-VII being of particular significance. Importantly, the minor binding pocket, especially the proline-kink in TM-II, is involved in G protein versus arrestin pathway-biased signaling, for example in the angiotensin AT1 system. Consequently, this pocket could be specifically targeted in the development of functionally biased drugs.
AB - From the deep part of the main ligand-binding crevice, a minor, often shallower pocket extends between the extracellular ends of transmembrane domains (TM)-I, II, III and VII of 7TM receptors. This minor binding pocket is defined by a highly conserved kink in TM-II that is induced by a proline residue located in one of two adjacent positions. Here we argue that this minor binding pocket is important for receptor activation. Functional coupling of the receptors seems to be mediated through the hydrogen bond network located between the intracellular segments of these TMs, with the allosteric interface between TM-II and TM-VII being of particular significance. Importantly, the minor binding pocket, especially the proline-kink in TM-II, is involved in G protein versus arrestin pathway-biased signaling, for example in the angiotensin AT1 system. Consequently, this pocket could be specifically targeted in the development of functionally biased drugs.
KW - Animals
KW - Binding Sites
KW - Drug Delivery Systems
KW - Humans
KW - Ligands
KW - Models, Molecular
KW - Protein Structure, Quaternary
KW - Receptors, G-Protein-Coupled
KW - Signal Transduction
U2 - 10.1016/j.tips.2010.08.006
DO - 10.1016/j.tips.2010.08.006
M3 - Journal article
C2 - 20870300
VL - 31
SP - 567
EP - 574
JO - Trends in Pharmacological Sciences
JF - Trends in Pharmacological Sciences
SN - 0165-6147
IS - 12
ER -
ID: 34356196