8ST5

Streptococcus gordonii str. Challis Hsa bound to Neu5Ac

• PDB DOI: https://doi.org/10.2210/pdb8ST5/pdb

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


• Deposited: 2023-05-09 Released: 2024-05-15 
• Deposition Author(s): Morrison, K.M.A., Iverson, T.M.
• Funding Organization(s): Department of Veterans Affairs (VA, United States), American Heart Association, National Institutes of Health/National Center for Research Resources (NIH/NCRR)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 0.199 
• R-Value Work: 0.165 
• R-Value Observed: 0.167 

Starting Model: experimental

Literature

Hsa Siglec +Unique Domains bound to Neu5Ac alpha2, 3 Gal

Morrison, K.M.A., Iverson, T.M.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 26.33 kDa 
• Atom Count: 1,918 
• Modelled Residue Count: 204 
• Deposited Residue Count: 234 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Streptococcal hemagglutinin	A	234	Streptococcus	Mutation(s): 0  Gene Names: hsa, SGO_0966
UniProt
Find proteins for A8AWU7 (Streptococcus gordonii (strain Challis / ATCC 35105 / BCRC 15272 / CH1 / DL1 / V288)) Explore A8AWU7  Go to UniProtKB:  A8AWU7

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
N-acetyl-alpha-neuraminic acid-(2-3)-beta-D-galactopyranose	B [auth K]	2		N/A
Glycosylation Resources
GlyTouCan:  G30207PZ GlyCosmos:  G30207PZ GlyGen:  G30207PZ

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NA (Subject of Investigation/LOI)	C [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 0.199 
• R-Value Work: 0.165 
• R-Value Observed: 0.167 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.067	α = 90
b = 57.695	β = 90
c = 75.952	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-05-15 
Deposition Author(s): Morrison, K.M.A., Iverson, T.M.

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Funding Organization	Location	Grant Number
Department of Veterans Affairs (VA, United States)	United States	RO1AI106987
Department of Veterans Affairs (VA, United States)	United States	GM137458
American Heart Association	United States	14GRNT20390021
National Institutes of Health/National Center for Research Resources (NIH/NCRR)	United States	GM007628

Revision History  

• Version 1.0: 2024-05-15
  Type: Initial release