28YQ | pdb_000028yq

ALFA-tag-FtnA from E.Coli

PDB DOI: https://doi.org/10.2210/pdb28YQ/pdb
EM Map EMD-56977: EMDB EMDataResource

Classification: METAL BINDING PROTEIN
Organism(s): Escherichia coli
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2026-03-02 Released: 2026-06-10
Deposition Author(s): Zimmermann, M., Braun, T.
Funding Organization(s): Swiss National Science Foundation

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 1.98 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

Starting Model: experimental
View more details

wwPDB Validation 3D Report Full Report

Validation slider image for 28YQ

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

Literature

Affinity-tag-based microfluidic protein isolation enables high-resolution Cryo-EM from minimal starting material

Zimmermann, M., Braun, T.

(2026) bioRxiv

DOI: https://doi.org/10.64898/2026.05.20.726462

Macromolecule Content

Total Structure Weight: 552.08 kDa
Atom Count: 32,016
Modeled Residue Count: 3,864
Deposited Residue Count: 4,752
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Bacterial non-heme ferritin	A B [auth G] C [auth H] D [auth I] E [auth B] A, B [auth G], C [auth H], D [auth I], E [auth B], F [auth J], G [auth K], H [auth L], I [auth C], J [auth M], K [auth N], L [auth O], M [auth D], N [auth P], O [auth Q], P [auth R], Q [auth E], R [auth S], S [auth T], T [auth U], U [auth F], V, W, X	198	Escherichia coli	Mutation(s): 0 Gene Names: ftnA, ftn, gen-165, rsgA, b1905, JW1893 EC: 1.16.3.2
UniProt
Find proteins for P0A998 (Escherichia coli (strain K12)) Explore P0A998 Go to UniProtKB: P0A998
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P0A998
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 1.98 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	4.7.1
MODEL REFINEMENT	PHENIX	2.0
MODEL REFINEMENT	Coot	1.1.15

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-06-10

Deposition Author(s):

Funding Organization	Location	Grant Number
Swiss National Science Foundation	Switzerland	--

Revision History (Full details and data files)

Version 1.0: 2026-06-10
Type: Initial release

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.