User profiles for Chris Ulens

Chris Ulens

KU Leuven
Verified email at kuleuven.be
Cited by 3228

Structural determinants of selective α-conotoxin binding to a nicotinic acetylcholine receptor homolog AChBP

C Ulens, RC Hogg, PH Celie… - Proceedings of the …, 2006 - National Acad Sciences
The nicotinic acetylcholine receptor (nAChR) is the prototype member of the superfamily of
pentameric ligand-gated ion channels. How the extracellular ligand-binding domain …

[HTML][HTML] Functional heteromerization of HCN1 and HCN2 pacemaker channels

C Ulens, J Tytgat - Journal of Biological Chemistry, 2001 - ASBMB
An important step toward understanding the molecular basis of the functional diversity of
pacemaker currents in spontaneously active cells has been the identification of a gene family …

AChBP‐targeted α‐conotoxin correlates distinct binding orientations with nAChR subtype selectivity

S Dutertre, C Ulens, R Büttner, A Fish, R van Elk… - The EMBO …, 2007 - embopress.org
Neuronal nAChRs are a diverse family of pentameric ion channels with wide distribution
throughout cells of the nervous and immune systems. However, the role of specific subtypes in …

Structural insights into Cys-loop receptor function and ligand recognition

M Nys, D Kesters, C Ulens - Biochemical pharmacology, 2013 - Elsevier
This review outlines recent insights into ligand recognition, channel gating and ion permeation
for the family of pentameric ligand-gated ion channels (pLGICs). These receptors are …

Pentameric ligand-gated ion channel ELIC is activated by GABA and modulated by benzodiazepines

…, W Sieghart, SCR Lummis, C Ulens - Proceedings of the …, 2012 - National Acad Sciences
GABA A receptors are pentameric ligand-gated ion channels involved in fast inhibitory
neurotransmission and are allosterically modulated by the anxiolytic, anticonvulsant, and sedative…

Molecular blueprint of allosteric binding sites in a homologue of the agonist-binding domain of the α7 nicotinic acetylcholine receptor

…, UH Danielson, G Tresadern, C Ulens - Proceedings of the …, 2015 - National Acad Sciences
The α7 nicotinic acetylcholine receptor (nAChR) belongs to the family of pentameric ligand-gated
ion channels and is involved in fast synaptic signaling. In this study, we take advantage …

[PDF][PDF] Regulation of hyperpolarization-activated HCN channels by cAMP through a gating switch in binding domain symmetry

C Ulens, SA Siegelbaum - Neuron, 2003 - cell.com
Recent X-ray structures show that the binding domains of tetrameric ligand-gated channels
form either a 4-fold symmetric gating ring or a 2-fold symmetric dimer of dimers. To determine …

[HTML][HTML] The molecular mechanism of snake short-chain α-neurotoxin binding to muscle-type nicotinic acetylcholine receptors

…, D Bertrand, JE Baenziger, H Nury, C Ulens - Nature …, 2022 - nature.com
Bites by elapid snakes (eg cobras) can result in life-threatening paralysis caused by venom
neurotoxins blocking neuromuscular nicotinic acetylcholine receptors. Here, we determine …

[HTML][HTML] A Structural and Mutagenic Blueprint for Molecular Recognition of Strychnine and d-Tubocurarine by Different Cys-Loop Receptors

…, L Krijnen, JL Yakel, V Tsetlin, AB Smit, C Ulens - PLoS …, 2011 - journals.plos.org
Cys-loop receptors (CLR) are pentameric ligand-gated ion channels that mediate fast
excitatory or inhibitory transmission in the nervous system. Strychnine and d-tubocurarine (d-TC) …

[PDF][PDF] Structure of NPP1, an ectonucleotide pyrophosphatase/phosphodiesterase involved in tissue calcification

S Jansen, A Perrakis, C Ulens, C Winkler, M Andries… - Structure, 2012 - cell.com
Ectonucleotide pyrophosphatase/phosphodiesterase-1 (NPP1) converts extracellular
nucleotides into inorganic pyrophosphate, whereas its close relative NPP2/autotaxin hydrolyzes …