6D8I

Mycobacterium tuberculosis polyketide synthase 13 N-terminal acyl carrier protein domain

• PDB DOI: https://doi.org/10.2210/pdb6D8I/pdb

• Classification: BIOSYNTHETIC PROTEIN
• Organism(s): Mycobacterium tuberculosis H37Rv
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2018-04-26 Released: 2018-06-06 
• Deposition Author(s): Tang, S., Sacchettini, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.180 
• R-Value Work: 0.164 
• R-Value Observed: 0.166 

Literature

Mycobacterium tuberculosis polyketide synthase 13 N-terminal acyl carrier protein domain

Tang, S., Sacchettini, J.

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)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 9.99 kDa 
• Atom Count: 733 
• Modelled Residue Count: 79 
• Deposited Residue Count: 87 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Polyketide synthase	A	87	Mycobacterium tuberculosis H37Rv	Mutation(s): 0  Gene Names: LH57_20715 EC: 2.3.1
UniProt
Find proteins for I6X8D2 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Explore I6X8D2  Go to UniProtKB:  I6X8D2

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PGE	E [auth A]	TRIETHYLENE GLYCOL C6 H14 O4 ZIBGPFATKBEMQZ-UHFFFAOYSA-N
EDO	F [auth A], G [auth A], H [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CA	B [auth A], C [auth A], D [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.180 
• R-Value Work: 0.164 
• R-Value Observed: 0.166 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.646	α = 90
b = 51.646	β = 90
c = 75.109	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2018-06-06 
Deposition Author(s): Tang, S., Sacchettini, J.

Revision History  

• Version 1.0: 2018-06-06
  Type: Initial release
  
• Version 1.1: 2024-11-13
  Changes: Data collection, Database references, Derived calculations, Structure summary