Biological Assembly 1  

 3D View: Structure | Electron Density

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 32787.04 
• Atom Count: 1956 
• Residue Count: 292 
• Unique protein chains: 1

6BA8

YbtT - Type II thioesterase from Yersiniabactin NRPS/PKS biosynthetic pathway

• DOI: 10.2210/pdb6BA8/pdb

• Classification: HYDROLASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 2017-10-12 Released: 2018-10-31 
• Deposition Author(s): Brett, T.J., Kober, D.L., Ohlemacher, S.I., Henderson, J.P.
• Funding Organization(s): National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease; National Institutes of Health/National Heart, Lung, and Blood Institute 

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.9 Å
• R-Value Free: 0.231 
• R-Value Work: 0.192 

Literature

YbtT is a low-specificity type II thioesterase that maintains production of the metallophore yersiniabactin in pathogenic enterobacteria.

Ohlemacher, S.I., Xu, Y., Kober, D.L., Malik, M., Nix, J.C., Brett, T.J., Henderson, J.P.

(2018) J. Biol. Chem. 293: 19572-19585

• PubMed: 30355735 
• Primary Citation of Related Structures:  
  6BA9

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Iron aquisition yersiniabactin synthesis enzyme, YbtT	A	292	Escherichia coli	Mutation(s): 0  Gene Names: irp4 (srfAD, ybtT) EC: 3.1.2.-
Find proteins for A0A061LQM0 (Escherichia coli) Go to UniProtKB:  A0A061LQM0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.9 Å
• R-Value Free: 0.231 
• R-Value Work: 0.192 
• Space Group: P 4 2₁ 2
• Diffraction Data DOI: 
  10.15785/SBGRID/631 SBGrid

Unit Cell:

Length (Å)	Angle (°)
a = 82.301	α = 90.00
b = 82.301	β = 90.00
c = 81.935	γ = 90.00

Software Package:

Software Name	Purpose
XDS	data reduction
XDS	data scaling
PHENIX	refinement
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2017-10-12 
• Released Date: 2018-10-31 
• Deposition Author(s): Brett, T.J., Kober, D.L., Ohlemacher, S.I., Henderson, J.P.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease	United States	R01DK099534
National Institutes of Health/National Heart, Lung, and Blood Institute	United States	R01HL119813

Revision History 

• Version 1.0: 2018-10-31
  Type: Initial release
• Version 1.1: 2018-11-07
  Type: Data collection, Database references
• Version 1.2: 2019-01-02
  Type: Data collection, Database references