Sandbox Reserved 1701: Difference between revisions

Line 22:

The extracellular region of the 7 transmembrane domain forms a single [https://en.wikipedia.org/wiki/Binding_site binding pocket] with <scene name='90/904305/Subpockets_1_and_2/4'>two sub-pockets</scene>. Sub-pocket 1 is negatively charged due to negatively charged <scene name='90/904305/Subpockets_1_and_2_d_and_e/2'>aspartate and glutamate</scene> residues (Asp-184 and Glu-164), while sub-pocket 2 contains hydrophobic amino acids which contribute to hydrophobic interactions between the ligand and protein. The intracellular region ('''Figure 1''') is what connects the transmembrane helices with the G-protein.

This GPCR has been modeled both as MRGPRX2 and MRGPRX4<ref name="Cao">PMID: 34789874</ref><ref name="Yang">PMID: 34789875</ref>, though much of this page focusses on MRGPRX2. X4 is found to mediate cholestatic itch compared to X2's regulation of mast cell degranulation and hypersensitivity itch-reactions<ref name="Cao">PMID: 34789874</ref>. X4 and X2 demonstrate nearly the same structural differences compared to that of other class A GPCRs. Interestingly, X4 can interact with negatively charged bile acids and is insensitive to the common X2 cationic agonists discussed later ('''Figure 7''')<ref name="Yu">PMID: 31500698</ref>.

This GPCR has been modeled both as MRGPRX2 and MRGPRX4<ref name="Cao">PMID: 34789874</ref><ref name="Yang">PMID: 34789875</ref>, though much of this page focusses on MRGPRX2. X4 is found to [https://en.wikipedia.org/wiki/Cholestatic_pruritus mediate cholestatic itch] compared to X2's regulation of mast cell degranulation and hypersensitivity itch-reactions<ref name="Cao">PMID: 34789874</ref>. X4 and X2 demonstrate nearly the same structural differences compared to that of other class A GPCRs. Interestingly, X4 can interact with negatively charged bile acids and is insensitive to the common X2 cationic agonists discussed later ('''Figure 7''')<ref name="Yu">PMID: 31500698</ref>.

=== G-Protein ===

Sandbox Reserved 1701: Difference between revisions

Navigation menu

Page actions

Page actions

Personal tools

Navigation

Search

Tools

@@ Line 22: / Line 22: @@
 The extracellular region of the 7 transmembrane domain forms a single [https://en.wikipedia.org/wiki/Binding_site binding pocket] with <scene name='90/904305/Subpockets_1_and_2/4'>two sub-pockets</scene>. Sub-pocket 1 is negatively charged due to negatively charged <scene name='90/904305/Subpockets_1_and_2_d_and_e/2'>aspartate and glutamate</scene> residues (Asp-184 and Glu-164), while sub-pocket 2 contains hydrophobic amino acids which contribute to hydrophobic interactions between the ligand and protein. The intracellular region ('''Figure 1''') is what connects the transmembrane helices with the G-protein.
-This GPCR has been modeled both as MRGPRX2 and MRGPRX4<ref name="Cao">PMID: 34789874</ref><ref name="Yang">PMID: 34789875</ref>, though much of this page focusses on MRGPRX2. X4 is found to mediate cholestatic itch compared to X2's regulation of mast cell degranulation and hypersensitivity itch-reactions<ref name="Cao">PMID: 34789874</ref>. X4 and X2 demonstrate nearly the same structural differences compared to that of other class A GPCRs. Interestingly, X4 can interact with negatively charged bile acids and is insensitive to the common X2 cationic agonists discussed later ('''Figure 7''')<ref name="Yu">PMID: 31500698</ref>.
+This GPCR has been modeled both as MRGPRX2 and MRGPRX4<ref name="Cao">PMID: 34789874</ref><ref name="Yang">PMID: 34789875</ref>, though much of this page focusses on MRGPRX2. X4 is found to [https://en.wikipedia.org/wiki/Cholestatic_pruritus mediate cholestatic itch] compared to X2's regulation of mast cell degranulation and hypersensitivity itch-reactions<ref name="Cao">PMID: 34789874</ref>. X4 and X2 demonstrate nearly the same structural differences compared to that of other class A GPCRs. Interestingly, X4 can interact with negatively charged bile acids and is insensitive to the common X2 cationic agonists discussed later ('''Figure 7''')<ref name="Yu">PMID: 31500698</ref>.
 === G-Protein ===