3F7Y | pdb_00003f7y

KcsA Potassium channel in the partially open state with 17 A opening at T112

PDB DOI: https://doi.org/10.2210/pdb3F7Y/pdb

Classification: membrane protein/metal transport
Organism(s): Mus musculus, Streptomyces lividans
Expression System: Escherichia coli
Mutation(s): Yes
Membrane Protein: Yes OPM PDBTM MemProtMD mpstruc

Deposited: 2008-11-10 Released: 2010-05-19
Deposition Author(s): Cuello, L.G., Jogini, V., Cortes, D.M., Perozo, E.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 3.40 Å
R-Value Free:
0.274 (Depositor)
R-Value Work:
0.263 (Depositor), 0.260 (DCC)

wwPDB Validation 3D Report Full Report

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This is version 1.4 of the entry. See complete history.

Literature

KcsA Potassium channel in the partially open state with 17 A opening at T112

Cuello, L.G., Jogini, V., Cortes, D.M., Perozo, E.

To be published.

Macromolecule Content

Total Structure Weight: 57.93 kDa
Atom Count: 3,906
Modeled Residue Count: 519
Deposited Residue Count: 535
Unique protein chains: 3

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
antibody fab fragment heavy chain	A	219	Mus musculus	Mutation(s): 0

Find similar proteins by:

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
antibody fab fragment light chain	B	212	Mus musculus	Mutation(s): 0
UniProt
Find proteins for P01837 (Mus musculus) Explore P01837 Go to UniProtKB: P01837
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P01837
Sequence Annotations Expand
Reference Sequence

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Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Voltage-gated potassium channel	C	104	Streptomyces lividans	Mutation(s): 7 Gene Names: kcsA, skc1 Membrane Entity: Yes
UniProt
Find proteins for P0A334 (Streptomyces lividans) Explore P0A334 Go to UniProtKB: P0A334
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P0A334
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
K Query on K Download:Ideal Coordinates CCD File SDF format, chain G [auth C] SDF format, chain F [auth C] SDF format, chain E [auth C] SDF format, chain D [auth C] MOL2 format, chain G [auth C] MOL2 format, chain F [auth C] MOL2 format, chain E [auth C] MOL2 format, chain D [auth C] mmCIF format, chain G [auth C] mmCIF format, chain F [auth C] mmCIF format, chain E [auth C] mmCIF format, chain D [auth C]	D [auth C], E [auth C], F [auth C], G [auth C]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N		Interactions Focus chain D [auth C] Focus chain E [auth C] Focus chain F [auth C] Focus chain G [auth C] Interactions & Density Focus chain D [auth C] Focus chain E [auth C] Focus chain F [auth C] Focus chain G [auth C]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 3.40 Å
R-Value Free: 0.274 (Depositor)
R-Value Work: 0.263 (Depositor), 0.260 (DCC)

Space Group: I 4

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 155.626	α = 90
b = 155.626	β = 90
c = 73.818	γ = 90

Software Package:

Software Name	Purpose
ADSC	data collection
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing

Structure Validation

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Entry History

Deposition Data

Released Date: 2010-05-19

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2010-05-19
Type: Initial release
Version 1.1: 2011-07-13
Changes: Version format compliance
Version 1.2: 2021-10-20
Changes: Database references, Derived calculations
Version 1.3: 2023-12-27
Changes: Data collection
Version 1.4: 2024-10-30
Changes: Structure summary

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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.