7NC0 | pdb_00007nc0

The structure of the humanised A33 Fab C226S variant, an immunotherapy candidate for colorectal cancer

PDB DOI: https://doi.org/10.2210/pdb7NC0/pdb

Classification: IMMUNE SYSTEM
Organism(s): Homo sapiens
Expression System: Escherichia coli str. K-12 substr. W3110
Mutation(s): No

Deposited: 2021-01-28 Released: 2022-03-02
Deposition Author(s): Tang, J., Zhang, C., Dalby, P., Kozielski, F.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.20 Å
R-Value Free:
0.257 (Depositor), 0.260 (DCC)
R-Value Work:
0.215 (Depositor), 0.210 (DCC)
R-Value Observed:
0.217 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

This is version 1.2 of the entry. See complete history.

Literature

The structure of the humanised A33 Fab C226S variant, an immunotherapy candidate for colorectal cancer

Tang, J., Zhang, C., Dalby, P., Kozielski, F.

To be published.

Macromolecule Content

Total Structure Weight: 46.31 kDa
Atom Count: 3,338
Modeled Residue Count: 426
Deposited Residue Count: 431
Unique protein chains: 2

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
A33 Fab light chain	A [auth L]	214	Homo sapiens	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
A33 Fab heavy chain	B [auth H]	217	Homo sapiens	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.20 Å
R-Value Free: 0.257 (Depositor), 0.260 (DCC)
R-Value Work: 0.215 (Depositor), 0.210 (DCC)
R-Value Observed: 0.217 (Depositor)

Space Group: P 6₅ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 93.829	α = 90
b = 93.829	β = 90
c = 201.744	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

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Entry History

Deposition Data

Released Date: 2022-03-02

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2022-03-02
Type: Initial release
Version 1.1: 2024-01-31
Changes: Data collection, Refinement description
Version 1.2: 2024-10-16
Changes: Structure summary

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.