6RQM

A blocking anti-CTLA-4 Nanobody (KN044) complexed with CTLA-4

PDB DOI: https://doi.org/10.2210/pdb6RQM/pdb

Classification: IMMUNE SYSTEM
Organism(s): Camelus bactrianus, Homo sapiens
Expression System: Homo sapiens
Mutation(s): No

Deposited: 2019-05-16 Released: 2020-07-08
Deposition Author(s): Zhang, F., Zhou, A., Gao, H.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 3.00 Å
R-Value Free: 0.313
R-Value Work: 0.250
R-Value Observed: 0.253

wwPDB Validation 3D Report Full Report

This is version 1.1 of the entry. See complete history.

Literature

A blocking anti-CTLA-4 Nanobody (KN044) complexed with CTLA-4

Gao, H., Zhou, A.

To be published.

Macromolecule Content

Total Structure Weight: 28.69 kDa
Atom Count: 1,781
Modelled Residue Count: 239
Deposited Residue Count: 269
Unique protein chains: 2

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
A blocking anti-CTLA-4 nanobody (KN044)	A [auth B]	144	Camelus bactrianus	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cytotoxic T-lymphocyte protein 4	B [auth A]	125	Homo sapiens	Mutation(s): 0 Gene Names: CTLA4, CD152
UniProt & NIH Common Fund Data Resources
Find proteins for P16410 (Homo sapiens) Explore P16410 Go to UniProtKB: P16410
PHAROS: P16410 GTEx: ENSG00000163599
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P16410
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 3.00 Å
R-Value Free: 0.313
R-Value Work: 0.250
R-Value Observed: 0.253
Space Group: P 6₅ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 98.77	α = 90
b = 98.77	β = 90
c = 110.5	γ = 120

Software Package:

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

Structure Validation

View Full Validation Report

Entry History

Deposition Data

Released Date: 2020-07-08

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2020-07-08
Type: Initial release
Version 1.1: 2024-01-24
Changes: Data collection, Database references, Refinement description

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.