9I3W | pdb_00009i3w

Structure of anti-EV71 human monoclonal antibody 16-2-8C Fab

• PDB DOI: https://doi.org/10.2210/pdb9I3W/pdb

• Classification: ANTIVIRAL PROTEIN
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2025-01-24 Released: 2026-02-04 
• Deposition Author(s): Zhou, D., Ren, J., Stuart, D.I.
• Funding Organization(s): Medical Research Council (MRC, United Kingdom), Wellcome Trust

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.14 Å
• R-Value Free: 
  0.194 (Depositor), 0.199 (DCC) 
• R-Value Work: 
  0.166 (Depositor), 0.171 (DCC) 

Starting Model: experimental

Literature

Fine antigenic mapping of human enterovirus 71 from structures of cognate complexes for a panel of 12 patient derived monoclonal antibodies

Zhou, D., Ren, J., Stuart, D.I.

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

Macromolecule Content 

• Total Structure Weight: 49.5 kDa 
• Atom Count: 4,069 
• Modeled Residue Count: 449 
• Deposited Residue Count: 461 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
heavy chain	A [auth H]	245	Homo sapiens	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
light chain	B [auth L]	216	Homo sapiens	Mutation(s): 0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BTB (Subject of Investigation/LOI)	C [auth H]	2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C8 H19 N O5 OWMVSZAMULFTJU-UHFFFAOYSA-N
EDO (Subject of Investigation/LOI)	D [auth H], E [auth H]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.14 Å
• R-Value Free:  0.194 (Depositor), 0.199 (DCC) 
• R-Value Work:  0.166 (Depositor), 0.171 (DCC) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 47.013	α = 90
b = 80.394	β = 93.832
c = 57.572	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-02-04 
Deposition Author(s): Zhou, D., Ren, J., Stuart, D.I.

---

Funding Organization	Location	Grant Number
Medical Research Council (MRC, United Kingdom)	United Kingdom	MR/N00065X/1
Wellcome Trust	United Kingdom	090532/Z/09/Z

Revision History  

• Version 1.0: 2026-02-04
  Type: Initial release