6MWM | pdb_00006mwm

Bat coronavirus HKU4 SUD-C

• PDB DOI: https://doi.org/10.2210/pdb6MWM/pdb
• BMRB: 30531

• Classification: VIRAL PROTEIN
• Organism(s): Tylonycteris bat coronavirus HKU4
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2018-10-29 Released: 2019-09-11 
• Deposition Author(s): Staup, A.J., De Silva, I.U., Catt, J.T., Tan, X., Hammond, R.G., Johnson, M.A.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 20 
• Conformers Submitted: 20 
• Selection Criteria: all calculated structures submitted 

Literature

Structure of the SARS-Unique Domain C From the Bat Coronavirus HKU4.

Staup, A.J., De Silva, I.U., Catt, J.T., Tan, X., Hammond, R.G., Johnson, M.A.

(2019) Nat Prod Commun 14: 1934578X19849202-1934578X19849202

• PubMed: 32395093 
• DOI: https://doi.org/10.1177/1934578X19849202
• Primary Citation Related Structures: 
  6MWM


• PubMed Abstract: 
  

  Coronaviruses (CoVs) that cause infections such as severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome phylogenetically originate from bat CoVs. The coronaviral nonstructural protein 3 (nsp3) has been implicated in viral replication, polyprotein cleavage, and host immune interference. We report the structure of the C domain from the SARS-Unique Domain of bat CoV HKU4. The protein has a frataxin fold, consisting of 5 antiparallel β strands packed against 2 α helices. Bioinformatics analyses and nuclear magnetic resonance experiments were conducted to investigate the function of HKU4 C. The results showed that HKU4 C engages in protein-protein interactions with the nearby M domain of nsp3. The HKU4 C residues involved in protein-protein interactions are conserved in group 2c CoVs, indicating a conserved function.

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Organizational Affiliation: 
• Department of Chemistry, 1720 2nd Avenue S. CHEM 201, University of Alabama at Birmingham, AL, USA.
Department of Chemistry, 1720 2nd Avenue S. CHEM 274, University of Alabama at Birmingham, AL, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 9.12 kDa 
• Atom Count: 641 
• Modeled Residue Count: 81 
• Deposited Residue Count: 81 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Non-structural protein 3	A	81	Tylonycteris bat coronavirus HKU4	Mutation(s): 0  Gene Names: rep, 1a-1b
UniProt
Find proteins for P0C6W3 (Bat coronavirus HKU4) Explore P0C6W3  Go to UniProtKB:  P0C6W3

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 20 
• Conformers Submitted: 20 
• Selection Criteria: all calculated structures submitted 

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2019-09-11 
Deposition Author(s): Staup, A.J., De Silva, I.U., Catt, J.T., Tan, X., Hammond, R.G., Johnson, M.A.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R35GM119456

Revision History  

• Version 1.0: 2019-09-11
  Type: Initial release
  
• Version 1.1: 2020-01-01
  Changes: Author supporting evidence, Database references
• Version 1.2: 2020-05-27
  Changes: Database references
• Version 1.3: 2020-08-26
  Changes: Structure summary
• Version 1.4: 2023-06-14
  Changes: Database references, Other
• Version 1.5: 2024-05-15
  Changes: Data collection, Database references