2KBT

Attachment of an NMR-invisible solubility enhancement tag (INSET) using a sortase-mediated protein ligation method

• PDB DOI: https://doi.org/10.2210/pdb2KBT/pdb
• BMRB: 16053

• Classification: SIGNALING PROTEIN
• Organism(s): Mus musculus, Streptococcus sp. 'group G
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-12-07 Released: 2009-02-03 
• Deposition Author(s): Kumeta, H., Kobashigawa, Y., Ogura, K., Inagaki, F.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Literature

Attachment of an NMR-invisible solubility enhancement tag using a sortase-mediated protein ligation method

Kobashigawa, Y., Kumeta, H., Ogura, K., Inagaki, F.

(2009) J Biomol NMR 43: 145-150

• PubMed: 19140010 
• DOI: https://doi.org/10.1007/s10858-008-9296-5
• Primary Citation of Related Structures:  
  2KBT


• PubMed Abstract: 
  

  Sample solubility is essential for structural studies of proteins by solution NMR. Attachment of a solubility enhancement tag, such as GB1, MBP and thioredoxin, to a target protein has been used for this purpose. However, signal overlap of the tag with the target protein often made the spectral analysis difficult. Here we report a sortase-mediated protein ligation method to eliminate NMR signals arising from the tag by preparing the isotopically labeled target protein attached with the non-labeled GB1 tag at the C-terminus.

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Organizational Affiliation: 

Department of Structural Biology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, 060-0810, Japan.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 15.97 kDa 
• Atom Count: 566 
• Modelled Residue Count: 69 
• Deposited Residue Count: 142 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Proto-oncogene vav,Immunoglobulin G-binding protein G	A	142	Mus musculus, Streptococcus sp. 'group G This entity is chimeric	Mutation(s): 0  Gene Names: Vav1, Vav, spg
UniProt
Find proteins for P27870 (Mus musculus) Explore P27870  Go to UniProtKB:  P27870
Find proteins for P06654 (Streptococcus sp. group G) Explore P06654  Go to UniProtKB:  P06654
UniProt Groups	P06654P27870

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-02-03 
Deposition Author(s): Kumeta, H., Kobashigawa, Y., Ogura, K., Inagaki, F.

Revision History  

• Version 1.0: 2009-02-03
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2020-02-26
  Changes: Data collection, Database references, Derived calculations, Other
• Version 1.3: 2023-06-14
  Changes: Database references, Other
• Version 1.4: 2024-04-10
  Changes: Data collection, Database references, Source and taxonomy, Structure summary