26LM | pdb_000026lm

Crystal structure of cblb

PDB DOI: https://doi.org/10.2210/pdb26LM/pdb

Classification: FLAVOPROTEIN
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2026-05-06 Released: 2026-06-17
Deposition Author(s): Zhiyan, D., Danyan, C., Lingyu, S., Bing, X.
Funding Organization(s): National Science Foundation (NSF, China)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.95 Å
R-Value Free:
0.240 (Depositor), 0.239 (DCC)
R-Value Work:
0.212 (Depositor), 0.213 (DCC)
R-Value Observed:
0.213 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Validation slider image for 26LM

This is version 1.0 of the entry. See complete history.

Literature

Phage Display-Derived Cyclic Peptides Targeting the TKB Domain of CBLB with T Cell Immunostimulatory Activity

Lingyu, S., Danyan, C., Bing, X., Yubo, Z.

To be published.

Macromolecule Content

Total Structure Weight: 46.45 kDa
Atom Count: 3,345
Modeled Residue Count: 396
Deposited Residue Count: 399
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
E3 ubiquitin-protein ligase CBL-B	A	399	Homo sapiens	Mutation(s): 0 Gene Names: CBLB, RNF56, Nbla00127 EC: 2.3.2.27
UniProt & NIH Common Fund Data Resources
Find proteins for Q13191 (Homo sapiens) Explore Q13191 Go to UniProtKB: Q13191
PHAROS: Q13191 GTEx: ENSG00000114423
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q13191
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.95 Å
R-Value Free: 0.240 (Depositor), 0.239 (DCC)
R-Value Work: 0.212 (Depositor), 0.213 (DCC)
R-Value Observed: 0.213 (Depositor)

Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 71.84	α = 90
b = 71.84	β = 90
c = 212.311	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
PDB_EXTRACT	data extraction

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-06-17

Deposition Author(s):

Funding Organization	Location	Grant Number
National Science Foundation (NSF, China)	China	82373720

Revision History (Full details and data files)

Version 1.0: 2026-06-17
Type: Initial release

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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.