6pxr

From Proteopedia
Jump to navigation Jump to search

Anti-TAU BIIB092 FAB with TAU peptideAnti-TAU BIIB092 FAB with TAU peptide

Structural highlights

6pxr is a 3 chain structure with sequence from 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 1.556Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

A2NHM3_MOUSE

Publication Abstract from PubMed

Deposition of tau aggregates in the brain is a pathological hallmark of several neurodegenerative diseases, termed tauopathies, such as Alzheimer's disease (AD), corticobasal degeneration, and progressive supranuclear palsy (PSP). As transcellular spread of pathological tau aggregates has been implicated in disease progression, immunotherapy is being considered as a treatment for tauopathies. Here we report a detailed biochemical and biophysical characterization of the tau-binding properties of gosuranemab, a humanized monoclonal antibody directed against N-terminal tau that is currently being investigated as a treatment for AD. Binding experiments showed that gosuranemab exhibited high affinity for tau monomer, tau fibrils, and insoluble tau from different tauopathies. Epitope mapping studies conducted using X-ray crystallography and mutagenesis showed that gosuranemab bound to human tau residues 15-22. Immunodepletion of pathological human brain homogenates and transgenic mouse interstitial fluid (ISF) with gosuranemab resulted in reduced tau aggregation in tau biosensor cells. Preincubation of seed-competent AD-tau with gosuranemab significantly inhibited tau aggregation in mouse primary cortical neurons. Gosuranemab also significantly reduced unbound N-terminal tau in cerebrospinal fluid (CSF) from individuals with PSP and AD, and in ISF and CSF of treated transgenic mice. These results are consistent with the >90% target engagement observed in the CSF of some clinical trial dosing cohorts and support the evaluation of gosuranemab as a potential treatment for AD.

Characterization of tau binding by gosuranemab.,Sopko R, Golonzhka O, Arndt J, Quan C, Czerkowicz J, Cameron A, Smith B, Murugesan Y, Gibbons G, Kim SJ, Trojanowski JQ, Lee VMY, Brunden KR, Graham DL, Weinreb PH, Hering H Neurobiol Dis. 2020 Dec;146:105120. doi: 10.1016/j.nbd.2020.105120. Epub 2020 Sep , 28. PMID:32991997[1]

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

See Also

References

  1. Sopko R, Golonzhka O, Arndt J, Quan C, Czerkowicz J, Cameron A, Smith B, Murugesan Y, Gibbons G, Kim SJ, Trojanowski JQ, Lee VMY, Brunden KR, Graham DL, Weinreb PH, Hering H. Characterization of tau binding by gosuranemab. Neurobiol Dis. 2020 Dec;146:105120. PMID:32991997 doi:10.1016/j.nbd.2020.105120

6pxr, resolution 1.56Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA