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  2. Identification of the first small-molecule ligand of the neuronal receptor sortilin and structure determination of the receptor-ligand complex

Identification of the first small-molecule ligand of the neuronal receptor sortilin and structure determination of the receptor-ligand complex

  • Acta Crystallogr D Biol Crystallogr. 2014 Feb;70(Pt 2):451-60. doi: 10.1107/S1399004713030149.
Jacob Lauwring Andersen 1 Tenna Juul Schrøder 2 Søren Christensen 2 Dorthe Strandbygård 1 Lone Tjener Pallesen 3 Maria Marta García-Alai 1 Samsa Lindberg 2 Morten Langgård 2 Jørgen Calí Eskildsen 2 Laurent David 2 Lena Tagmose 2 Klaus Baek Simonsen 2 Philip James Maltas 2 Lars Christian Biilmann Rønn 2 Inge E M de Jong 2 Ibrahim John Malik 2 Jan Egebjerg 2 Jens-Jacob Karlsson 2 Srinivas Uppalanchi 4 Durga Rao Sakumudi 4 Pradheep Eradi 4 Steven P Watson 2 Søren Thirup 1
Affiliations

Affiliations

  • 1 The Lundbeck Foundation Research Centre MIND, Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10C, 8000 Aarhus C, Denmark.
  • 2 Neuroscience Drug Discovery, H. Lundbeck A/S, Ottiliavej 9, 2500 Valby, Denmark.
  • 3 The Lundbeck Foundation Research Centre MIND, Department of Biomedicine, Aarhus University, Ole Worms Allé 3, 8000 Aarhus C, Denmark.
  • 4 Medicinal Chemistry, GVK BioScience, Plot No. 28 A, IDA Nacharam, Hyderabad 500 076, India.
Abstract

Sortilin is a type I membrane glycoprotein belonging to the vacuolar protein sorting 10 protein (Vps10p) family of sorting receptors and is most abundantly expressed in the central nervous system. Sortilin has emerged as a key player in the regulation of neuronal viability and has been implicated as a possible therapeutic target in a range of disorders. Here, the identification of AF40431, the first reported small-molecule ligand of sortilin, is reported. Crystals of the sortilin-AF40431 complex were obtained by co-crystallization and the structure of the complex was solved to 2.7 Å resolution. AF40431 is bound in the neurotensin-binding site of sortilin, with the leucine moiety of AF40431 mimicking the binding mode of the C-terminal leucine of neurotensin and the 4-methylumbelliferone moiety of AF40431 forming π-stacking with a phenylalanine.

Keywords

AF40431; Alzheimer's disease; Vps10p; ligands; proNGF; small molecules; sortilin.

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