Structure of the human histamine H 1 receptor complex with doxepin

Tatsuro Shimamura, Mitsunori Shiroishi, Simone Weyand, Hirokazu Tsujimoto, Graeme Winter, Vsevolod Katritch, Ruben Abagyan, Vadim Cherezov, Wei Liu, Gye Won Han, Takuya Kobayashi, Raymond C. Stevens, So Iwata

Research output: Contribution to journalArticle

532 Citations (Scopus)

Abstract

The biogenic amine histamine is an important pharmacological mediator involved in pathophysiological processes such as allergies and inflammations. Histamine H 1 receptor (H 1 R) antagonists are very effective drugs alleviating the symptoms of allergic reactions. Here we show the crystal structure of the H 1 R complex with doxepin, a first-generation H 1 R antagonist. Doxepin sits deep in the ligand-binding pocket and directly interacts with Trp-428 6.48, a highly conserved key residue in G-protein-coupled-receptor activation. This well-conserved pocket with mostly hydrophobic nature contributes to the low selectivity of the first-generation compounds. The pocket is associated with an anion-binding region occupied by a phosphate ion. Docking of various second-generation H 1 R antagonists reveals that the unique carboxyl group present in this class of compounds interacts with Lys-191 5.39 and/or Lys-179 ECL2, both of which form part of the anion-binding region. This region is not conserved in other aminergic receptors, demonstrating how minor differences in receptors lead to pronounced selectivity differences with small molecules. Our study sheds light on the molecular basis of H 1 R antagonist specificity against H 1 R.

Original languageEnglish
Pages (from-to)65-72
Number of pages8
JournalNature
Volume475
Issue number7354
DOIs
Publication statusPublished - Jul 7 2011

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Doxepin
Histamine
Anions
Hypersensitivity
Biogenic Amines
G-Protein-Coupled Receptors
Phosphates
Pharmacology
Ions
Ligands
Inflammation
Pharmaceutical Preparations

All Science Journal Classification (ASJC) codes

  • General

Cite this

Shimamura, T., Shiroishi, M., Weyand, S., Tsujimoto, H., Winter, G., Katritch, V., ... Iwata, S. (2011). Structure of the human histamine H 1 receptor complex with doxepin. Nature, 475(7354), 65-72. https://doi.org/10.1038/nature10236

Structure of the human histamine H 1 receptor complex with doxepin. / Shimamura, Tatsuro; Shiroishi, Mitsunori; Weyand, Simone; Tsujimoto, Hirokazu; Winter, Graeme; Katritch, Vsevolod; Abagyan, Ruben; Cherezov, Vadim; Liu, Wei; Han, Gye Won; Kobayashi, Takuya; Stevens, Raymond C.; Iwata, So.

In: Nature, Vol. 475, No. 7354, 07.07.2011, p. 65-72.

Research output: Contribution to journalArticle

Shimamura, T, Shiroishi, M, Weyand, S, Tsujimoto, H, Winter, G, Katritch, V, Abagyan, R, Cherezov, V, Liu, W, Han, GW, Kobayashi, T, Stevens, RC & Iwata, S 2011, 'Structure of the human histamine H 1 receptor complex with doxepin', Nature, vol. 475, no. 7354, pp. 65-72. https://doi.org/10.1038/nature10236
Shimamura T, Shiroishi M, Weyand S, Tsujimoto H, Winter G, Katritch V et al. Structure of the human histamine H 1 receptor complex with doxepin. Nature. 2011 Jul 7;475(7354):65-72. https://doi.org/10.1038/nature10236
Shimamura, Tatsuro ; Shiroishi, Mitsunori ; Weyand, Simone ; Tsujimoto, Hirokazu ; Winter, Graeme ; Katritch, Vsevolod ; Abagyan, Ruben ; Cherezov, Vadim ; Liu, Wei ; Han, Gye Won ; Kobayashi, Takuya ; Stevens, Raymond C. ; Iwata, So. / Structure of the human histamine H 1 receptor complex with doxepin. In: Nature. 2011 ; Vol. 475, No. 7354. pp. 65-72.
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