2OAR | pdb_00002oar

Mechanosensitive Channel of Large Conductance (MscL)

PDB DOI: https://doi.org/10.2210/pdb2OAR/pdb
Entry: 2OAR supersedes: 1MSL

Classification: MEMBRANE PROTEIN
Organism(s): Mycobacterium tuberculosis H37Ra
Expression System: Escherichia coli BL21
Mutation(s): No
Membrane Protein: Yes OPM PDBTM MemProtMD mpstruc

Deposited: 2006-12-17 Released: 2007-01-09
Deposition Author(s): Rees, D.C., Chang, G., Spencer, R.H., Lee, A.T., Steinbacher, S., Strop, P.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 3.50 Å
R-Value Free:
0.338 (Depositor), 0.332 (DCC)
R-Value Work:
0.319 (Depositor), 0.321 (DCC)
R-Value Observed:
0.319 (Depositor)

wwPDB Validation 3D Report Full Report

Validation slider image for 2OAR

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

Literature

Structures of the Prokaryotic Mechanosensitive Channels MscL and MscS

Steinbacher, S., Bass, R., Strop, P., Rees, D.C.

(2007) Current Topics In Membranes 58

Macromolecule Content

Total Structure Weight: 94.68 kDa
Atom Count: 4,758
Modeled Residue Count: 625
Deposited Residue Count: 870
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Large-conductance mechanosensitive channel	A, B, C, D, E	174	Mycobacterium tuberculosis H37Ra	Mutation(s): 0 Gene Names: mscL Membrane Entity: Yes
UniProt
Find proteins for A5U127 (Mycobacterium tuberculosis (strain ATCC 25177 / H37Ra)) Explore A5U127 Go to UniProtKB: A5U127
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	A5U127
Sequence Annotations Expand
Reference Sequence

Small Molecules

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

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 3.50 Å
R-Value Free: 0.338 (Depositor), 0.332 (DCC)
R-Value Work: 0.319 (Depositor), 0.321 (DCC)
R-Value Observed: 0.319 (Depositor)

Space Group: I 4₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 212.308	α = 90
b = 212.308	β = 90
c = 97.68	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
PDB_EXTRACT	data extraction
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

Deposition Data

Released Date: 2007-01-09

Deposition Author(s):

Steinbacher, S.

This entry supersedes: 1MSL

Revision History (Full details and data files)

Version 1.0: 2007-01-09
Type: Initial release
Version 1.1: 2008-05-01
Changes: Version format compliance
Version 1.2: 2011-07-13
Changes: Version format compliance
Version 1.3: 2014-04-09
Changes: Database references
Version 1.4: 2023-12-27
Changes: Data collection, Database references, Derived calculations

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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.