7VAZ

Crystal structure of antibody 14A in complex with MUC1 glycopeptide(GlycoS)

• PDB DOI: https://doi.org/10.2210/pdb7VAZ/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Mus musculus, Homo sapiens
• Expression System: Trichopalpus nigribasis
• Mutation(s): No 


• Deposited: 2021-08-30 Released: 2022-08-31 
• Deposition Author(s): Niu, J., Xu, L., Meng, B., Han, Y.B., Yang, B.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.73 Å
• R-Value Free: 0.264 
• R-Value Work: 0.209 
• R-Value Observed: 0.212 

Starting Model: experimental

Literature

Site-specific GalNAc modification on a MUC1 neoantigen epitope forms a basis for high-affinity antibody binding

Han, Y.B., Xu, L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: surface plasmon resonance

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 2 assigned by authors.

Biological Assembly 3  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 3 assigned by authors.

Macromolecule Content

• Total Structure Weight: 148.12 kDa 
• Atom Count: 9,884 
• Modelled Residue Count: 1,310 
• Deposited Residue Count: 1,377 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
14A fab light chain	A [auth C], D [auth A], G [auth F]	217	Mus musculus	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
14A fab heavy chain	B [auth D], E [auth B], H	229	Mus musculus	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Mucin-1 subunit alpha	C [auth G], F [auth E], I	13	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P15941 (Homo sapiens) Explore P15941  Go to UniProtKB:  P15941
PHAROS:  P15941 GTEx:  ENSG00000185499

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NGA (Subject of Investigation/LOI)	J [auth G]	2-acetamido-2-deoxy-beta-D-galactopyranose C8 H15 N O6 OVRNDRQMDRJTHS-JAJWTYFOSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.73 Å
• R-Value Free: 0.264 
• R-Value Work: 0.209 
• R-Value Observed: 0.212 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.558	α = 90
b = 226.62	β = 107.69
c = 71.071	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data scaling
Coot	model building
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-08-31 
Deposition Author(s): Niu, J., Xu, L., Meng, B., Han, Y.B., Yang, B.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History  

• Version 1.0: 2022-08-31
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Refinement description
• Version 1.2: 2024-10-09
  Changes: Structure summary