4ENE

Structure of the N- and C-terminal trimmed ClC-ec1 Cl-/H+ antiporter and Fab Complex

• PDB DOI: https://doi.org/10.2210/pdb4ENE/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Escherichia coli K-12, Mus musculus
• Expression System: Escherichia coli BL21(DE3), Mus musculus
• Mutation(s): No 
• Membrane Protein: Yes  PDBTMMemProtMDmpstruc


• Deposited: 2012-04-13 Released: 2012-12-26 
• Deposition Author(s): Lim, H.H., Shane, T., Miller, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.278 
• R-Value Work: 0.239 
• R-Value Observed: 0.241 

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A2B2C2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 193.16 kDa 
• Atom Count: 13,691 
• Modelled Residue Count: 1,751 
• Deposited Residue Count: 1,758 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
H(+)/Cl(-) exchange transporter ClcA	A, B	446	Escherichia coli K-12	Mutation(s): 0  Gene Names: clcA, eriC, yadQ, b0155, JW5012 Membrane Entity: Yes
UniProt
Find proteins for P37019 (Escherichia coli (strain K12)) Explore P37019  Go to UniProtKB:  P37019

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
heavy chain of Fab fragment	C, E	222	Mus musculus	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
light chain of Fab fragment	D, F	211	Mus musculus	Mutation(s): 0

Oligosaccharides

Help

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	G, H, I	2		N/A
Glycosylation Resources
GlyTouCan:  G07411ON GlyCosmos:  G07411ON

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
DMU	L [auth A], M [auth A], N [auth A], O [auth A], S [auth B], T [auth B]	DECYL-BETA-D-MALTOPYRANOSIDE C22 H42 O11 WOQQAWHSKSSAGF-WXFJLFHKSA-N
CL	J [auth A], K [auth A], P [auth B], Q [auth B], R [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 4
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900001	G, H, I	alpha-maltose	Oligosaccharide / Nutrient

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 0.278 
• R-Value Work: 0.239 
• R-Value Observed: 0.241 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 232.26	α = 90
b = 97.52	β = 132.87
c = 173.96	γ = 90

Software Package:

Software Name	Purpose
ADSC	data collection
PHASER	phasing
PHENIX	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-12-26 
Deposition Author(s): Lim, H.H., Shane, T., Miller, C.

Revision History  

• Version 1.0: 2012-12-26
  Type: Initial release
  
• Version 1.1: 2018-01-24
  Changes: Structure summary
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary