21IQ | pdb_000021iq

E coli CNF1 in complex with BCAM receptor

PDB DOI: https://doi.org/10.2210/pdb21IQ/pdb
EM Map EMD-67697: EMDB EMDataResource

Classification: TOXIN
Organism(s): Homo sapiens, Escherichia coli
Expression System: Trichoplusia ni, Escherichia coli
Mutation(s): No

Deposited: 2025-12-14 Released: 2026-10-07
Deposition Author(s): Zhou, C., Zheng, Y.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 2.78 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

Validation slider image for 21IQ

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

Literature

E coli CNF1 in complex with BCAM receptor

Zhou, C., Zheng, Y.

To be published.

Macromolecule Content

Total Structure Weight: 169.74 kDa
Atom Count: 9,562
Modeled Residue Count: 1,208
Deposited Residue Count: 1,525
Unique protein chains: 2

Macromolecules

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Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Basal cell adhesion molecule	A [auth B]	511	Homo sapiens	Mutation(s): 0 Gene Names: BCAM, LU, MSK19
UniProt & NIH Common Fund Data Resources
Find proteins for P50895 (Homo sapiens) Explore P50895 Go to UniProtKB: P50895
PHAROS: P50895 GTEx: ENSG00000187244
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P50895
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cytotoxic necrotizing factor 1	B [auth A]	1,014	Escherichia coli	Mutation(s): 0 Gene Names: cnf1
UniProt
Find proteins for Q47106 (Escherichia coli) Explore Q47106 Go to UniProtKB: Q47106
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q47106
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 2.78 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.2_5419
RECONSTRUCTION	cryoSPARC	4.7

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-10-07

Deposition Author(s):

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

Revision History (Full details and data files)

Version 1.0: 2026-10-07
Type: Initial release