Evidence map›Paper›PMID 27434672›Full record

ArticleeLife2016

Structural mechanism of ligand activation in human calcium-sensing receptor.

Yong Geng, Lidia Mosyak, Igor Kurinov, Hao Zuo, Emmanuel Sturchler, Tat Cheung Cheng, Prakash Subramanyam, Alice P Brown, Sarah C Brennan, Hee-Chang Mun and 10 more

Open access · goldAbstract read
In one paragraph

Article in eLife, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 124 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
124citing papers in PubMed, 1 pooled it
19.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

124 citing papers in PubMed, 1 synthesis or guideline pooled it, 257 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Functional assessment of a constitutively activatingJournal of the Endocrine Society · 2026
    Article
  4. Exploring multiple drug actions of a CaNaunyn-Schmiedeberg's archives of pharmacology · 2026
    Review
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64 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

20 authors at 5 institutions in 3 countries.

Yong GengDepartment of Pharmacology, Columbia University, New York, United States.
Lidia MosyakDepartment of Pharmacology, Columbia University, New York, United States.
Igor KurinovDepartment of Chemistry and Chemical Biology, Cornell University, Ithaca, United States.
Hao ZuoDepartment of Pharmacology, Columbia University, New York, United States.
Emmanuel SturchlerDepartment of Molecular Therapeutics, The Scripps Translational Science Institute, Jupiter, United States.
Tat Cheung ChengDepartment of Pharmacology, Columbia University, New York, United States.
Prakash SubramanyamDepartment of Physiology and Cellular Biophysics, Columbia University, New York, United States.
Alice P BrownSchool of Life and Environmental Sciences, University of Sydney, New South Wales, Australia.
Sarah C BrennanSchool of Life and Environmental Sciences, University of Sydney, New South Wales, Australia.
Hee-Chang MunSchool of Life and Environmental Sciences, University of Sydney, New South Wales, Australia.
Martin BushDepartment of Pharmacology, Columbia University, New York, United States.
Yan ChenDepartment of Pharmacology, Columbia University, New York, United States.
Trang X NguyenDepartment of Psychiatry, Columbia University, New York, United States.
Baohua CaoDepartment of Pharmacology, Columbia University, New York, United States.
Donald D ChangDepartment of Physiology and Cellular Biophysics, Columbia University, New York, United States.
Matthias QuickDepartment of Psychiatry, Columbia University, New York, United States.
Arthur D ConigraveSchool of Life and Environmental Sciences, University of Sydney, New South Wales, Australia.
Henry M ColecraftDepartment of Physiology and Cellular Biophysics, Columbia University, New York, United States.
Patricia McDonaldDepartment of Molecular Therapeutics, The Scripps Translational Science Institute, Jupiter, United States.
Qing R FanDepartment of Pharmacology, Columbia University, New York, United States.ORCID 0000-0002-9330-0963
Columbia University · USThe University of Sydney · AUScripps Research Institute · USChinese Academy of Sciences · CNCornell University · US

Funding

Overall EvaluationP41GM103403 · NIGMS · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2012 to 2017
$14.3M
Pixel Array Detector for X-ray CrystallographyS10RR029205 · NCRR · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2010 to 2010
$1.8M
Structural studies of human extracellular calcium-sensing receptorR01GM112973 · NIGMS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI FAN, QING R · 2015 to 2018
$1.3M
NCRR NIH HHS S10 RR029205NIGMS NIH HHS P41 GM103403NIGMS NIH HHS R01 GM112973
6 · The paper itself

Abstract

Human calcium-sensing receptor (CaSR) is a G-protein-coupled receptor (GPCR) that maintains extracellular Ca(2+) homeostasis through the regulation of parathyroid hormone secretion. It functions as a disulfide-tethered homodimer composed of three main domains, the Venus Flytrap module, cysteine-rich domain, and seven-helix transmembrane region. Here, we present the crystal structures of the entire extracellular domain of CaSR in the resting and active conformations. We provide direct evidence that L-amino acids are agonists of the receptor. In the active structure, L-Trp occupies the orthosteric agonist-binding site at the interdomain cleft and is primarily responsible for inducing extracellular domain closure to initiate receptor activation. Our structures reveal multiple binding sites for Ca(2+) and PO4(3-) ions. Both ions are crucial for structural integrity of the receptor. While Ca(2+) ions stabilize the active state, PO4(3-) ions reinforce the inactive conformation. The activation mechanism of CaSR involves the formation of a novel dimer interface between subunits.

Indexed as

Binding SitesCalciumCrystallography, X-RayHumansModels, MolecularPhosphatesProtein BindingProtein ConformationProtein MultimerizationReceptors, Calcium-SensingTryptophanCalciumPhosphatesReceptors, Calcium-SensingTryptophanamino acidsbiochemistrybiophysicscalcium-sensing receptorextracellular calcium homeostasisextracellular domain structurehumanprincipal agonistreceptor activation mechanismstructural biology

Identifiers

PMID27434672
PMCPMC4977154
OpenAlexW2485780168

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.