2MXX

Structure of Amylase binding Protein A of Streptococcous gordonii: a potential receptor for human salivary amylase enzyme

• PDB DOI: https://doi.org/10.2210/pdb2MXX/pdb
• BMRB: 25435

• Classification: HYDROLASE RECEPTOR
• Organism(s): Streptococcus gordonii str. Challis
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2015-01-18 Released: 2015-05-13 
• Deposition Author(s): Sethi, A., Mohanty, B., Ramasubbu, N., Gooley, P.R.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 80 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Literature

Structure of amylase-binding protein A of Streptococcus gordonii: A potential receptor for human salivary alpha-amylase enzyme.

Sethi, A., Mohanty, B., Ramasubbu, N., Gooley, P.R.

(2015) Protein Sci 24: 1013-1018

• PubMed: 25739638 
• DOI: https://doi.org/10.1002/pro.2671
• Primary Citation of Related Structures:  
  2MXX


• PubMed Abstract: 
  

  Amylase-binding protein A (AbpA) of a number of oral streptococci is essential for the colonization of the dental pellicle. We have determined the solution structure of residues 24-195 of AbpA of Streptococcus gordonii and show a well-defined core of five helices in the region of 45-115 and 135-145. (13) Cα/β chemical shift and heteronuclear (15) N-{(1) H} NOE data are consistent with this fold and that the remainder of the protein is unstructured. The structure will inform future molecular experiments in defining the mechanism of human salivary α-amylase binding and biofilm formation by streptococci.

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Organizational Affiliation: 

Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, 30 Flemington Road, Parkville, Victoria, 3010, Australia.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 19.17 kDa 
• Atom Count: 1,351 
• Modelled Residue Count: 179 
• Deposited Residue Count: 179 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Amylase-binding protein AbpA	A	179	Streptococcus gordonii str. Challis	Mutation(s): 0  Gene Names: abpA, SGO_2105
UniProt
Find proteins for A8AZZ3 (Streptococcus gordonii (strain Challis / ATCC 35105 / BCRC 15272 / CH1 / DL1 / V288)) Explore A8AZZ3  Go to UniProtKB:  A8AZZ3

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 80 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-05-13 
Deposition Author(s): Sethi, A., Mohanty, B., Ramasubbu, N., Gooley, P.R.

Revision History  

• Version 1.0: 2015-05-13
  Type: Initial release
  
• Version 1.1: 2015-06-10
  Changes: Database references
• Version 1.2: 2024-05-01
  Changes: Data collection, Database references