7QFL

Crystal structure of S-layer protein SlpA from Lactobacillus acidophilus, domain II (aa 199-308)

• PDB DOI: https://doi.org/10.2210/pdb7QFL/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Lactobacillus acidophilus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2021-12-06 Released: 2022-12-21 
• Deposition Author(s): Sagmeister, T., Dordic, A., Eder, E., Pavkov-Keller, T.
• Funding Organization(s): Austrian Science Fund

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free: 0.198 
• R-Value Work: 0.170 

Literature

The self-assembly of the S-layer protein from Lactobacilli acidophilus

Sagmeister, T., Eder, M., Grininger, C., Vejzovic, D., Buhlheller, C., Dordic, A., Damisch, E., Millan, C., Medina, A., Uson, I., Baek, M., Read, R., Baker, D., Pavkov-Keller, T.

To be published.

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: 14.31 kDa 
• Atom Count: 884 
• Modelled Residue Count: 103 
• Deposited Residue Count: 132 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
S-layer protein	A	132	Lactobacillus acidophilus	Mutation(s): 0  Gene Names: slpA, LBA0169
UniProt
Find proteins for P35829 (Lactobacillus acidophilus (strain ATCC 700396 / NCK56 / N2 / NCFM)) Explore P35829  Go to UniProtKB:  P35829

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PO4 (Subject of Investigation/LOI)	B [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
ACT	C [auth A]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free: 0.198 
• R-Value Work: 0.170 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 55.851	α = 90
b = 55.851	β = 90
c = 63.732	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing
Coot	model building

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-12-21 
Deposition Author(s): Sagmeister, T., Dordic, A., Eder, E., Pavkov-Keller, T.

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Funding Organization	Location	Grant Number
Austrian Science Fund	Austria	P29432

Revision History  

• Version 1.0: 2022-12-21
  Type: Initial release
  
• Version 1.1: 2024-01-31
  Changes: Data collection, Refinement description