6DCV

Crystal structure of human anti-tau antibody CBTAU-27.1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

A common antigenic motif recognized by naturally occurring human VH5-51/VL4-1 anti-tau antibodies with distinct functionalities.

Apetri, A.Crespo, R.Juraszek, J.Pascual, G.Janson, R.Zhu, X.Zhang, H.Keogh, E.Holland, T.Wadia, J.Verveen, H.Siregar, B.Mrosek, M.Taggenbrock, R.Ameijde, J.Inganas, H.van Winsen, M.Koldijk, M.H.Zuijdgeest, D.Borgers, M.Dockx, K.Stoop, E.J.M.Yu, W.Brinkman-van der Linden, E.C.Ummenthum, K.van Kolen, K.Mercken, M.Steinbacher, S.de Marco, D.Hoozemans, J.J.Wilson, I.A.Koudstaal, W.Goudsmit, J.

(2018) Acta Neuropathol Commun 6: 43-43

  • DOI: 10.1186/s40478-018-0543-z
  • Primary Citation of Related Structures:  
    5ZV3, 6DCV, 6DCW, 6GK7, 6GK8

  • PubMed Abstract: 
  • Misfolding and aggregation of tau protein are closely associated with the onset and progression of Alzheimer's Disease (AD). By interrogating IgG + memory B cells from asymptomatic donors with tau peptides, we have identified two somatically mutated V H 5-51/V L 4-1 antibodies ...

    Misfolding and aggregation of tau protein are closely associated with the onset and progression of Alzheimer's Disease (AD). By interrogating IgG + memory B cells from asymptomatic donors with tau peptides, we have identified two somatically mutated V H 5-51/V L 4-1 antibodies. One of these, CBTAU-27.1, binds to the aggregation motif in the R3 repeat domain and blocks the aggregation of tau into paired helical filaments (PHFs) by sequestering monomeric tau. The other, CBTAU-28.1, binds to the N-terminal insert region and inhibits the spreading of tau seeds and mediates the uptake of tau aggregates into microglia by binding PHFs. Crystal structures revealed that the combination of V H 5-51 and V L 4-1 recognizes a common Pro-X n -Lys motif driven by germline-encoded hotspot interactions while the specificity and thereby functionality of the antibodies are defined by the CDR3 regions. Affinity improvement led to improvement in functionality, identifying their epitopes as new targets for therapy and prevention of AD.


    Organizational Affiliation

    Department of Neurology, Amsterdam Neuroscience, Academic Medical Center, Meidreefberg 9, 1105, AZ, Amsterdam, the Netherlands.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Light chain of CBTAU27.1 FabC [auth A],
A [auth L]
220Homo sapiensMutation(s): 0 
Gene Names: IGKC
UniProt & NIH Common Fund Data Resources
Find proteins for P01834 (Homo sapiens)
Explore P01834 
Go to UniProtKB:  P01834
PHAROS:  P01834
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP01834
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
heavy chain of CBTAU-27.1 FabD [auth B],
B [auth H]
231Homo sapiensMutation(s): 0 
Gene Names: IGHG1
UniProt & NIH Common Fund Data Resources
Find proteins for P01857 (Homo sapiens)
Explore P01857 
Go to UniProtKB:  P01857
PHAROS:  P01857
GTEx:  ENSG00000211896 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP01857
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
E [auth H],
F [auth H],
G [auth B]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 93.411α = 90
b = 60.578β = 103.52
c = 169.472γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-06-06
    Type: Initial release
  • Version 1.1: 2018-06-13
    Changes: Data collection, Database references