ISDA

Entry Detail

PDB ID:

6TNP

Keywords:

IMMUNE SYSTEM

Title:

Crystal structure of the ScFv-5E5 in complex with a Tn glycopeptide

Biological Source:

Source Organism:

Mus musculus

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2019-12-09

Release Date:

2020-11-18

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

3.00 Å

R-Value Free:

0.25

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 21 21 21

Download Validation Report

Macromolecular Entities

Polymer Type:polypeptide(L)
Description:Light chain of our ScFv-5E5
Chain IDs:A, C, E, G, J, L
Chain Length:113
Number of Molecules:6
Biological Source:Mus musculus

Polymer Type:polypeptide(L)
Description:Heavy chain of our ScFv-5E5
Chain IDs:B, D, F, H, I, K
Chain Length:116
Number of Molecules:6
Biological Source:Mus musculus

Ligand Molecules

NO8

Primary Citation

Structural characterization of an unprecedented lectin-like antitumoral anti-MUC1 antibody.

Macias-Leon, J, Bermejo, I.A, Asin, A, Garcia-Garcia, A, Companon, I, Jimenez-Moreno, E, Coelho, H, Mangini, V, Albuquerque, I.S, Marcelo, F, Asensio, J.L, Bernardes, G.J.L, Joshi, H.J, Fiammengo, R, Blixt, O, Hurtado-Guerrero, R, Corzana, F.Show

Chem.Commun.(Camb.) 56 15137 15140 (2020)

PMID: 33211039 DOI: 10.1039/d0cc06349e

Abstact

The molecular basis of antibody 5E5, which recognizes the entire GalNAc unit as a primary epitope is disclosed. The antibody's contacts with the peptide are mostly limited to two residues, allowing it to show some degree of promiscuity. These findings open the door to the chemical design of peptide-mimetics for developing efficient anti-cancer vaccines and diagnostic tools.

Legend

Protein

Chemical

Disease

Primary Citation of related structures