5tud

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Structural Insights into the Extracellular Recognition of the Human Serotonin 2B Receptor by an AntibodyStructural Insights into the Extracellular Recognition of the Human Serotonin 2B Receptor by an Antibody

Structural highlights

5tud is a 6 chain structure with sequence from Escherichia coli, Homo sapiens and Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 3Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

C562_ECOLX Electron-transport protein of unknown function.5HT2B_HUMAN This is one of the several different receptors for 5-hydroxytryptamine (serotonin), a biogenic hormone that functions as a neurotransmitter, a hormone, and a mitogen. This receptor mediates its action by association with G proteins that activate a phosphatidylinositol-calcium second messenger system. Plays a role in the regulation of impulsive behavior.

Publication Abstract from PubMed

Monoclonal antibodies provide an attractive alternative to small-molecule therapies for a wide range of diseases. Given the importance of G protein-coupled receptors (GPCRs) as pharmaceutical targets, there has been an immense interest in developing therapeutic monoclonal antibodies that act on GPCRs. Here we present the 3.0-A resolution structure of a complex between the human 5-hydroxytryptamine 2B (5-HT2B) receptor and an antibody Fab fragment bound to the extracellular side of the receptor, determined by serial femtosecond crystallography with an X-ray free-electron laser. The antibody binds to a 3D epitope of the receptor that includes all three extracellular loops. The 5-HT2B receptor is captured in a well-defined active-like state, most likely stabilized by the crystal lattice. The structure of the complex sheds light on the mechanism of selectivity in extracellular recognition of GPCRs by monoclonal antibodies.

Structural insights into the extracellular recognition of the human serotonin 2B receptor by an antibody.,Ishchenko A, Wacker D, Kapoor M, Zhang A, Han GW, Basu S, Patel N, Messerschmidt M, Weierstall U, Liu W, Katritch V, Roth BL, Stevens RC, Cherezov V Proc Natl Acad Sci U S A. 2017 Aug 1;114(31):8223-8228. doi:, 10.1073/pnas.1700891114. Epub 2017 Jul 17. PMID:28716900[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Ishchenko A, Wacker D, Kapoor M, Zhang A, Han GW, Basu S, Patel N, Messerschmidt M, Weierstall U, Liu W, Katritch V, Roth BL, Stevens RC, Cherezov V. Structural insights into the extracellular recognition of the human serotonin 2B receptor by an antibody. Proc Natl Acad Sci U S A. 2017 Aug 1;114(31):8223-8228. doi:, 10.1073/pnas.1700891114. Epub 2017 Jul 17. PMID:28716900 doi:http://dx.doi.org/10.1073/pnas.1700891114

5tud, resolution 3.00Å

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OCA