2PER

Crystal Structure of Human Chloride Intracellular Channel protein 2

• PDB DOI: https://doi.org/10.2210/pdb2PER/pdb

• Classification: ELECTRON TRANSPORT
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2007-04-03 Released: 2008-03-04 
• Deposition Author(s): Su, X.D., Liang, Y.H., Mi, W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.258 
• R-Value Work: 0.216 
• R-Value Observed: 0.218 

Starting Model: experimental

Literature

The crystal structure of human chloride intracellular channel protein 2: A disulfide bond with functional implications.

Mi, W., Liang, Y.H., Li, L., Su, X.D.

(2008) Proteins 71: 509-513

• PubMed: 18186468 
• DOI: https://doi.org/10.1002/prot.21922
• Primary Citation of Related Structures:  
  2PER

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Organizational Affiliation: 

National Laboratory of Protein Engineering and Plant Genetic Engineering, College of Life Sciences, Peking University, Beijing 100871, China.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 30.76 kDa 
• Atom Count: 1,843 
• Modelled Residue Count: 222 
• Deposited Residue Count: 267 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chloride intracellular channel protein 2	A	267	Homo sapiens	Mutation(s): 0  Gene Names: CLIC2 EC: 1.11.1 (UniProt), 1.8 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for O15247 (Homo sapiens) Explore O15247  Go to UniProtKB:  O15247
PHAROS:  O15247 GTEx:  ENSG00000155962

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MNB	B [auth A]	5-MERCAPTO-2-NITRO-BENZOIC ACID C7 H5 N O4 S GANZODCWZFAEGN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.258 
• R-Value Work: 0.216 
• R-Value Observed: 0.218 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.05	α = 90
b = 75.927	β = 90
c = 80.477	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
AUTOMAR	data collection
HKL-2000	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-03-04 
Deposition Author(s): Su, X.D., Liang, Y.H., Mi, W.

Revision History  

• Version 1.0: 2008-03-04
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-10-18
  Changes: Refinement description
• Version 1.3: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-10-09
  Changes: Structure summary