Sandbox Reserved 1176: Difference between revisions
From Proteopedia
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| Line 10: | Line 10: | ||
On the extracellular side of the protein is the | On the extracellular side of the protein is the | ||
<scene name='72/721547/Hydrophobic_binding_pocket/5'>hydrophobic binding pocket</scene>. <ref name="SONT"/> | <scene name='72/721547/Hydrophobic_binding_pocket/5'>hydrophobic binding pocket</scene>. <ref name="SONT"/> | ||
One key residue in this pocket is a Phenylalanine at position 358, which takes part in a network of hydrophobic stacking interactions<ref name="SPGP"/>. These interactions stabilize the Trp321 and Tyr324 residues allowing Tyr324 to interact with the '''[https://en.wikipedia.org/wiki/C-terminus C-terminal]''' | One key residue in this pocket is a Phenylalanine at position 358, which takes part in a network of hydrophobic stacking interactions<ref name="SPGP"/>. These interactions stabilize the Trp321 and Tyr324 residues allowing <scene name='72/721547/Ligand_protein_interactions/8'>Tyr324</scene> to interact with the '''[https://en.wikipedia.org/wiki/C-terminus C-terminal]''' | ||
<scene name='72/721547/Hydrophobic_binding_pocket/6'>Leu13 residue of the NTS ligand</scene> | <scene name='72/721547/Hydrophobic_binding_pocket/6'>Leu13 residue of the NTS ligand</scene> | ||
via '''[https://en.wikipedia.org/wiki/Van_der_Waals_force Van der Waals interactions]''' .<ref name="SONT"/><ref name="SPGP"/> | via '''[https://en.wikipedia.org/wiki/Van_der_Waals_force Van der Waals interactions]''' .<ref name="SONT"/><ref name="SPGP"/> | ||
| Line 32: | Line 32: | ||
====Leu310==== | ====Leu310==== | ||
is crucial for interactions with the G alpha subunit by positioning Arg167 in the conserved <scene name='72/721548/Dery_motif/2'>D/ERY motif</scene><ref name="SPGP"/>. When Leu310 was substituted with alanine, Arg167 was able to form a stabilizing hydrogen bonding network with Asn257, Ser164 and Gly306, which oriented Arg167 in a position that was unfavorable for contacting the G alpha subunit. When residue 310 was converted back to leucine, this hydrogen bonding network was sterically unfavorable and Arg167 interacted with the G alpha subunit<ref name="SPGP"/> leading to the transduction of several different signals involved in dopamine regulation<ref name="Schizophrenia"/>, leptin signlaing<ref name="Mice"/>, and tumor growth<ref name="cancer"/>. | |||
. | . | ||