5GZ0 | pdb_00005gz0

Crystal structure of FM329, a recombinant Fab adopted from cetuximab

• PDB DOI: https://doi.org/10.2210/pdb5GZ0/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens/Mus musculus xenograft
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2016-09-26 Released: 2017-10-04 
• Deposition Author(s): Sim, D.W., Kim, J.H., Kim, Y.P., Won, H.S.
• Funding Organization(s): Korea Small and Medium Business Administration

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 
  0.227 (Depositor), 0.230 (DCC) 
• R-Value Work: 
  0.188 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.189 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of FM329, a recombinant Fab adopted from cetuximab

Sim, D.W., Kim, J.H., Kim, Y.P., Won, H.S.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 95.05 kDa 
• Atom Count: 7,330 
• Modeled Residue Count: 868 
• Deposited Residue Count: 878 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
FM329 light chain	A, C	215	Homo sapiens/Mus musculus xenograft	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
FM329 heavy chain	B, D	224	Homo sapiens/Mus musculus xenograft	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free:  0.227 (Depositor), 0.230 (DCC) 
• R-Value Work:  0.188 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.189 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 72.521	α = 90
b = 68.031	β = 101.84
c = 97.78	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data processing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2017-10-04 
Deposition Author(s): Sim, D.W., Kim, J.H., Kim, Y.P., Won, H.S.

---

Funding Organization	Location	Grant Number
Korea Small and Medium Business Administration	Korea, Republic Of	C0333276

Revision History  

• Version 1.0: 2017-10-04
  Type: Initial release
  
• Version 1.1: 2023-11-08
  Changes: Data collection, Database references, Refinement description
• Version 1.2: 2024-10-16
  Changes: Structure summary