7T1X

Crystal structure of human Fab A194-01 in complex with its synthetic heptasaccharide Ara6-Man epitope (BSI110888)

• PDB DOI: https://doi.org/10.2210/pdb7T1X/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2021-12-02 Released: 2022-12-07 
• Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.216 
• R-Value Work: 0.159 
• R-Value Observed: 0.161 

Literature

Crystal structure of human Fab A194-01 in complex with its synthetic heptasaccharide Ara6-Man epitope (BSI110888)

Abendroth, J., Fox III, D., Pinter, A., Choudhary, A., Honnen, W.J., Lowary, T., Horanyi, P.S., Lorimer, D.D., Edwards, T.E.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 2 assigned by authors.

Biological Assembly 3  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 3 assigned by authors.

Biological Assembly 4  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 4 assigned by authors.

Biological Assembly 5  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 5 assigned by authors.

Macromolecule Content

• Total Structure Weight: 244.42 kDa 
• Atom Count: 17,365 
• Modelled Residue Count: 2,141 
• Deposited Residue Count: 2,205 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fab A194-01 heavy chain	A [auth H], C [auth H2], E [auth H3], G [auth H4], I [auth H5]	228	Homo sapiens	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Fab A194-01 light chain	B [auth L], D [auth L2], F [auth L3], H [auth L4], J [auth L5]	213	Homo sapiens	Mutation(s): 0

Oligosaccharides

Help

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-5)-beta-D-arabinofuranose-(1-2)-alpha-D-arabinofuranose-(1-3)-[beta-D-arabinofuranose-(1-2)-alpha-D-arabinofuranose-(1-5)]alpha-D-arabinofuranose-(1-5)-alpha-D-arabinofuranose	K [auth A], L [auth B], M [auth C], N [auth D], O [auth E]	7	N/A	N/A

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EDO	P [auth H], Q [auth H], R [auth L], S [auth L3], T [auth H4], U [auth H5]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Free: 0.216 
• R-Value Work: 0.159 
• R-Value Observed: 0.161 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 85.93	α = 90
b = 149.26	β = 99.315
c = 115.36	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PDB_EXTRACT	data extraction
PHENIX	phasing
Coot	model building

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-12-07 
Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	HHSN272201700059C

Revision History  

• Version 1.0: 2022-12-07
  Type: Initial release
  
• Version 1.1: 2024-04-03
  Changes: Data collection, Refinement description