Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 11.90 kDa 
• Atom Count: 838 
• Modelled Residue Count: 105 
• Deposited Residue Count: 105 
• Unique protein chains: 1

2N05

Solution Structure of the non-phosphorylated N-terminal region of Human Cysteine String Protein (CSP)

• PDB DOI: 10.2210/pdb2N05/pdb
• BMRB: 25515

• Classification: CHAPERONE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2015-03-04 Released: 2016-07-13 
• Deposition Author(s): Patel, P., Lian, L., Morgan, A., Burgoyne, R.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Phosphorylation of Cysteine String Protein Triggers a Major Conformational Switch.

Patel, P., Prescott, G.R., Burgoyne, R.D., Lian, L.Y., Morgan, A.

(2016) Structure 24: 1380-1386

• PubMed: 27452402 
• DOI: 10.1016/j.str.2016.06.009
• Primary Citation of Related Structures:  
  2N04, 2N05


• PubMed Abstract: 
  

Cysteine string protein (CSP) is a member of the DnaJ/Hsp40 chaperone family that localizes to neuronal synaptic vesicles. Impaired CSP function leads to neurodegeneration in humans and model organisms as a result of misfolding of client proteins involved in neurotransmission. Mammalian CSP is phosphorylated in vivo on Ser10, and this modulates its protein interactions and effects on neurotransmitter release. However, there are no data on the structural consequences of CSP phosphorylation to explain these functional effects. We show that Ser10 phosphorylation causes an order-to-disorder transition that disrupts CSP's extreme N-terminal α helix. This triggers the concomitant formation of a hairpin loop stabilized by ionic interactions between phosphoSer10 and the highly conserved J-domain residue, Lys58. These phosphorylation-induced effects result in significant changes to CSP conformation and surface charge distribution. The phospho-switch revealed here provides structural insight into how Ser10 phosphorylation modulates CSP function and also has potential implications for other DnaJ phosphoproteins.

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Organizational Affiliation: 

Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Crown Street, Liverpool L69 3BX, UK. Electronic address: [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DnaJ homolog subfamily C member 5	A	105	Homo sapiens	Mutation(s): 0  Gene Names: DNAJC5, CSP, CLN4
UniProt & NIH Common Fund Data Resources
Find proteins for Q9H3Z4 (Homo sapiens) Explore Q9H3Z4  Go to UniProtKB:  Q9H3Z4
PHAROS:  Q9H3Z4

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 
• OLDERADO: 2N05 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2015-03-04 
• Released Date: 2016-07-13 
Deposition Author(s): Patel, P., Lian, L., Morgan, A., Burgoyne, R.

Revision History  

• Version 1.0: 2016-07-13
  Type: Initial release
  
• Version 1.1: 2016-08-10
  Changes: Database references
• Version 1.2: 2016-08-24
  Changes: Database references