Biological Assembly 1  

 3D View: Structure

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 15.98 kDa 
• Atom Count: 1122 
• Residue Count: 136 
• Unique protein chains: 1

2LZF

Structure of the biofilm matrix promoter AbbA from B. subtilis

• DOI: 10.2210/pdb2LZF/pdb
• BMRB: 18753

• Classification: PROTEIN BINDING
• Organism(s): Bacillus subtilis subsp. subtilis str. 168
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2012-10-02 Released: 2013-09-11 
• Deposition Author(s): Bobay, B.G., Tucker, A.T., Losick, R., Cavanagh, J.

---

Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 20 
• Conformers Submitted: 20 
• Selection Criteria: structures with the least restraint violations 

Literature

A DNA Mimic: The Structure and Mechanism of Action for the Anti-Repressor Protein AbbA.

Tucker, A.T., Bobay, B.G., Banse, A.V., Olson, A.L., Soderblom, E.J., Moseley, M.A., Thompson, R.J., Varney, K.M., Losick, R., Cavanagh, J.

(2014) J Mol Biol 426: 1911-1924

• PubMed: 24534728 
• DOI: 10.1016/j.jmb.2014.02.010
• Primary Citation of Related Structures:  
  2LZF


• PubMed Abstract: 
  

Bacteria respond to adverse environmental conditions by switching on the expression of large numbers of genes that enable them to adapt to unfavorable circumstances. In Bacillus subtilis, many adaptive genes are under the negative control of the global transition state regulator, the repressor protein AbrB. Stressful conditions lead to the de-repression of genes under AbrB control. Contributing to this de-repression is AbbA, an anti-repressor that binds to and blocks AbrB from binding to DNA. Here, we have determined the NMR structure of the functional AbbA dimer, confirmed that it binds to the N-terminal DNA-binding domain of AbrB, and have provided an initial description for the interaction using computational docking procedures. Interestingly, we show that AbbA has structural and surface characteristics that closely mimic the DNA phosphate backbone, enabling it to readily carry out its physiological function.

---

Organizational Affiliation: 

Department of Molecular and Structural Biochemistry, North Carolina State University, Campus Box 7622, 128 Polk Hall, Raleigh, NC 27695, USA. Electronic address: [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Uncharacterized protein ykzF	A, B	68	Bacillus subtilis subsp. subtilis str. 168	Mutation(s): 0  Gene Names: BSU14120, ykzF
Find proteins for O31697 (Bacillus subtilis (strain 168)) Explore O31697  Go to UniProtKB:  O31697

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 20 
• Conformers Submitted: 20 
• Selection Criteria: structures with the least restraint violations 
• OLDERADO: 2LZF Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2012-10-02 
• Released Date: 2013-09-11 
Deposition Author(s): Bobay, B.G., Tucker, A.T., Losick, R., Cavanagh, J.

Revision History 

• Version 1.0: 2013-09-11
  Type: Initial release
  
• Version 1.1: 2014-02-19
  Changes: Database references
• Version 1.2: 2014-03-19
  Changes: Database references
• Version 1.3: 2014-04-23
  Changes: Database references