6CAM

Glucan Binding Protein C of Streptococcus mutans Mediates both Sucrose-Independent and Sucrose-Dependent Adherence

• PDB DOI: https://doi.org/10.2210/pdb6CAM/pdb

• Classification: SUGAR BINDING PROTEIN
• Organism(s): Streptococcus mutans
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2018-01-31 Released: 2018-05-09 
• Deposition Author(s): Schormann, N., Mieher, J.L., Deivanayagam, C.
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 0.235 
• R-Value Work: 0.207 
• R-Value Observed: 0.208 

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 39.65 kDa 
• Atom Count: 2,959 
• Modelled Residue Count: 351 
• Deposited Residue Count: 354 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glucan-binding protein C	A	354	Streptococcus mutans	Mutation(s): 0  Gene Names: gbpC
UniProt
Find proteins for Q8DTF1 (Streptococcus mutans serotype c (strain ATCC 700610 / UA159)) Explore Q8DTF1  Go to UniProtKB:  Q8DTF1

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BGC	C [auth A], D [auth A]	beta-D-glucopyranose C6 H12 O6 WQZGKKKJIJFFOK-VFUOTHLCSA-N
CA	B [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 0.235 
• R-Value Work: 0.207 
• R-Value Observed: 0.208 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 210.02	α = 90
b = 47.94	β = 96.34
c = 40.089	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2018-05-09 
Deposition Author(s): Schormann, N., Mieher, J.L., Deivanayagam, C.

---

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	NIAID R21A1105038

Revision History  

• Version 1.0: 2018-05-09
  Type: Initial release
  
• Version 1.1: 2018-07-04
  Changes: Data collection, Database references
• Version 1.2: 2019-02-20
  Changes: Author supporting evidence, Data collection
• Version 1.3: 2019-12-18
  Changes: Author supporting evidence, Data collection
• Version 1.4: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Structure summary
• Version 1.5: 2023-10-04
  Changes: Data collection, Database references, Refinement description, Structure summary