6YGQ | pdb_00006ygq

EclA N-terminal domain; PllA-like lectin

• PDB DOI: https://doi.org/10.2210/pdb6YGQ/pdb

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


• Deposited: 2020-03-27 Released: 2021-04-07 
• Deposition Author(s): Koehnke, J., Sikandar, A.
• Funding Organization(s): German Research Foundation (DFG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.224 (Depositor), 0.220 (DCC) 
• R-Value Work: 
  0.181 (Depositor), 0.180 (DCC) 
• R-Value Observed: 
  0.183 (Depositor) 

Starting Model: experimental

Literature

EclA N-terminal domain; PllA-like lectin

Koehnke, J., Sikandar, A.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 64.1 kDa 
• Atom Count: 4,082 
• Modeled Residue Count: 480 
• Deposited Residue Count: 584 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PA-I Galactophilic Lectin	A, B, C, D	146	Enterobacter cloacae	Mutation(s): 0  Gene Names: lecA, SAMEA2054040_03003
UniProt
Find proteins for A0A0M7CBI0 (Enterobacter cloacae) Explore A0A0M7CBI0  Go to UniProtKB:  A0A0M7CBI0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	E [auth A], F [auth B], G [auth C], H [auth D]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.224 (Depositor), 0.220 (DCC) 
• R-Value Work:  0.181 (Depositor), 0.180 (DCC) 
• R-Value Observed: 0.183 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.793	α = 90
b = 50.461	β = 109.36
c = 73.859	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-04-07 
Deposition Author(s): Koehnke, J., Sikandar, A.

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Funding Organization	Location	Grant Number
German Research Foundation (DFG)	Germany	KO4116_3_1

Revision History  

• Version 1.0: 2021-04-07
  Type: Initial release
  
• Version 1.1: 2024-01-24
  Changes: Data collection, Database references, Refinement description