7X3N

Crystal structure of anti-mPEG h15-2b Fab

• PDB DOI: https://doi.org/10.2210/pdb7X3N/pdb

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


• Deposited: 2022-03-01 Released: 2023-03-01 
• Deposition Author(s): Chang, C.Y., Nguyen, T.M.T., Toh, S.I., Su, Y.C.
• Funding Organization(s): Ministry of Science and Technology (MoST, Taiwan)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.24 Å
• R-Value Free: 0.269 
• R-Value Work: 0.205 

Starting Model: experimental

Literature

Structural determination of an antibody that specifically recognizes polyethylene glycol with a terminal methoxy group

Nguyen, M.T.T., Shih, Y.C., Lin, M.H., Roffler, S.R., Hsiao, C.Y., Cheng, T.L., Lin, W.W., Lin, E.C., Jong, Y.J., Chang, C.Y., Su, Y.C.

(2022) Commun Chem 5: 88

• DOI: https://doi.org/10.1038/s42004-022-00709-0

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 Evidence: gel filtration

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: 96.87 kDa 
• Atom Count: 6,806 
• Modelled Residue Count: 838 
• Deposited Residue Count: 886 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
15-2b-L	A, C	214	Homo sapiens	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
15-2b-H	B, D	229	Homo sapiens	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
P15 (Subject of Investigation/LOI)	E [auth B], F [auth D]	2,5,8,11,14,17-HEXAOXANONADECAN-19-OL C13 H28 O7 FHHGCKHKTAJLOM-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.24 Å
• R-Value Free: 0.269 
• R-Value Work: 0.205 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 63.93	α = 90
b = 112.572	β = 90
c = 158.821	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-03-01 
Deposition Author(s): Chang, C.Y., Nguyen, T.M.T., Toh, S.I., Su, Y.C.

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Funding Organization	Location	Grant Number
Ministry of Science and Technology (MoST, Taiwan)	Taiwan	107-2113-M-009-021-MY3
Ministry of Science and Technology (MoST, Taiwan)	Taiwan	109-2636-B-009-003

Revision History  

• Version 1.0: 2023-03-01
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Refinement description
• Version 1.2: 2024-11-13
  Changes: Structure summary