4CPG

Solution structure of the SGTA N-terminal domain

• PDB DOI:  https://doi.org/10.2210/pdb4CPG/pdb
• BMRB: 19779

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


• Deposited: 2014-02-06 Released: 2014-12-03 
• Deposition Author(s): Darby, J.F., Krysztofinska, E.M., Simpson, P.J., Isaacson, R.L.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: LOWEST ENERGY 

Literature

Solution Structure of the Sgta Dimerisation Domain and Investigation of its Interactions with the Ubiquitin-Like Domains of Bag6 and Ubl4A.

Darby, J.F., Krysztofinska, E.M., Simpson, P.J., Simon, A.C., Leznicki, P., Sriskandarajah, N., Bishop, D.S., Hale, L.R., Alfano, C., Conte, M.R., Martinez-Lumbreras, S., Thapaliya, A., High, S., Isaacson, R.L.

(2014) PLoS One 9: 11328

• PubMed: 25415308 
• DOI: https://doi.org/10.1371/journal.pone.0113281
• Primary Citation of Related Structures:  
  4CPG


• PubMed Abstract: 
  

The BAG6 complex resides in the cytosol and acts as a sorting point to target diverse hydrophobic protein substrates along their appropriate paths, including proteasomal degradation and ER membrane insertion. Composed of a trimeric complex of BAG6, TRC35 and UBL4A, the BAG6 complex is closely associated with SGTA, a co-chaperone from which it can obtain hydrophobic substrates.

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Organizational Affiliation: 

Department of Chemistry, King's College London, Britannia House, 7 Trinity Street, London, SE1 1DB, United Kingdom.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 18.49 kDa 
• Atom Count: 1,056 
• Modelled Residue Count: 138 
• Deposited Residue Count: 166 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
SMALL GLUTAMINE-RICH TETRATRICOPEPTIDE REPEAT-CONTAINING PROTEIN ALPHA	A, B	83	Homo sapiens	Mutation(s): 0  Gene Names: SGTA, SGT, SGT1
UniProt
Find proteins for O43765 (Homo sapiens) Explore O43765  Go to UniProtKB:  O43765

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: LOWEST ENERGY 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-12-03 
Deposition Author(s): Darby, J.F., Krysztofinska, E.M., Simpson, P.J., Isaacson, R.L.

Revision History  

• Version 1.0: 2014-12-03
  Type: Initial release
  
• Version 1.1: 2018-02-07
  Changes: Data collection, Database references
• Version 2.0: 2018-02-14
  Changes: Atomic model, Data collection