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Analysis of Missense Variants in the Human Histamine Receptor Family Reveals Increased Constitutive Activity of E410(6.30×30)K Variant in the Histamine H(1) Receptor
The Exome Aggregation Consortium has collected the protein-encoding DNA sequences of almost 61,000 unrelated humans. Analysis of this dataset for G protein-coupled receptor (GPCR) proteins (available at GPCRdb) revealed a total of 463 naturally occurring genetic missense variations in the histamine...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038156/ https://www.ncbi.nlm.nih.gov/pubmed/33918180 http://dx.doi.org/10.3390/ijms22073702 |
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author | Ma, Xiaoyuan Segura, Marta Arimont Zarzycka, Barbara Vischer, Henry F. Leurs, Rob |
author_facet | Ma, Xiaoyuan Segura, Marta Arimont Zarzycka, Barbara Vischer, Henry F. Leurs, Rob |
author_sort | Ma, Xiaoyuan |
collection | PubMed |
description | The Exome Aggregation Consortium has collected the protein-encoding DNA sequences of almost 61,000 unrelated humans. Analysis of this dataset for G protein-coupled receptor (GPCR) proteins (available at GPCRdb) revealed a total of 463 naturally occurring genetic missense variations in the histamine receptor family. In this research, we have analyzed the distribution of these missense variations in the four histamine receptor subtypes concerning structural segments and sites important for GPCR function. Four missense variants R127(3.52×52)H, R139(34.57×57)H, R409(6.29×29)H, and E410(6.30×30)K, were selected for the histamine H(1) receptor (H(1)R) that were hypothesized to affect receptor activity by interfering with the interaction pattern of the highly conserved D(E)RY motif, the so-called ionic lock. The E410(6.30×30)K missense variant displays higher constitutive activity in G protein signaling as compared to wild-type H(1)R, whereas the opposite was observed for R127(3.52×52)H, R139(34.57×57)H, and R409(6.29×29)H. The E410(6.30×30)K missense variant displays a higher affinity for the endogenous agonist histamine than wild-type H(1)R, whereas antagonist affinity was not affected. These data support the hypothesis that the E410(6.30×30)K mutation shifts the equilibrium towards active conformations. The study of these selected missense variants gives additional insight into the structural basis of H(1)R activation and, moreover, highlights that missense variants can result in pharmacologically different behavior as compared to wild-type receptors and should consequently be considered in the drug discovery process. |
format | Online Article Text |
id | pubmed-8038156 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-80381562021-04-12 Analysis of Missense Variants in the Human Histamine Receptor Family Reveals Increased Constitutive Activity of E410(6.30×30)K Variant in the Histamine H(1) Receptor Ma, Xiaoyuan Segura, Marta Arimont Zarzycka, Barbara Vischer, Henry F. Leurs, Rob Int J Mol Sci Article The Exome Aggregation Consortium has collected the protein-encoding DNA sequences of almost 61,000 unrelated humans. Analysis of this dataset for G protein-coupled receptor (GPCR) proteins (available at GPCRdb) revealed a total of 463 naturally occurring genetic missense variations in the histamine receptor family. In this research, we have analyzed the distribution of these missense variations in the four histamine receptor subtypes concerning structural segments and sites important for GPCR function. Four missense variants R127(3.52×52)H, R139(34.57×57)H, R409(6.29×29)H, and E410(6.30×30)K, were selected for the histamine H(1) receptor (H(1)R) that were hypothesized to affect receptor activity by interfering with the interaction pattern of the highly conserved D(E)RY motif, the so-called ionic lock. The E410(6.30×30)K missense variant displays higher constitutive activity in G protein signaling as compared to wild-type H(1)R, whereas the opposite was observed for R127(3.52×52)H, R139(34.57×57)H, and R409(6.29×29)H. The E410(6.30×30)K missense variant displays a higher affinity for the endogenous agonist histamine than wild-type H(1)R, whereas antagonist affinity was not affected. These data support the hypothesis that the E410(6.30×30)K mutation shifts the equilibrium towards active conformations. The study of these selected missense variants gives additional insight into the structural basis of H(1)R activation and, moreover, highlights that missense variants can result in pharmacologically different behavior as compared to wild-type receptors and should consequently be considered in the drug discovery process. MDPI 2021-04-02 /pmc/articles/PMC8038156/ /pubmed/33918180 http://dx.doi.org/10.3390/ijms22073702 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ma, Xiaoyuan Segura, Marta Arimont Zarzycka, Barbara Vischer, Henry F. Leurs, Rob Analysis of Missense Variants in the Human Histamine Receptor Family Reveals Increased Constitutive Activity of E410(6.30×30)K Variant in the Histamine H(1) Receptor |
title | Analysis of Missense Variants in the Human Histamine Receptor Family Reveals Increased Constitutive Activity of E410(6.30×30)K Variant in the Histamine H(1) Receptor |
title_full | Analysis of Missense Variants in the Human Histamine Receptor Family Reveals Increased Constitutive Activity of E410(6.30×30)K Variant in the Histamine H(1) Receptor |
title_fullStr | Analysis of Missense Variants in the Human Histamine Receptor Family Reveals Increased Constitutive Activity of E410(6.30×30)K Variant in the Histamine H(1) Receptor |
title_full_unstemmed | Analysis of Missense Variants in the Human Histamine Receptor Family Reveals Increased Constitutive Activity of E410(6.30×30)K Variant in the Histamine H(1) Receptor |
title_short | Analysis of Missense Variants in the Human Histamine Receptor Family Reveals Increased Constitutive Activity of E410(6.30×30)K Variant in the Histamine H(1) Receptor |
title_sort | analysis of missense variants in the human histamine receptor family reveals increased constitutive activity of e410(6.30×30)k variant in the histamine h(1) receptor |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038156/ https://www.ncbi.nlm.nih.gov/pubmed/33918180 http://dx.doi.org/10.3390/ijms22073702 |
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