7DTQ | pdb_00007dtq

Apo Crystal Structure of Octaketide Synthase from A. arborescens

• PDB DOI: https://doi.org/10.2210/pdb7DTQ/pdb

• Classification: TRANSFERASE
• Organism(s): Aloe arborescens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2021-01-06 Released: 2022-01-19 
• Deposition Author(s): Li, T.L., Adhikari, K., Li, Y.S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 
  0.242 (Depositor), 0.240 (DCC) 
• R-Value Work: 
  0.225 (Depositor), 0.230 (DCC) 
• R-Value Observed: 
  0.225 (Depositor) 

Starting Model: experimental

Literature

Apo Crystal Structure of Octaketide synthase from Aloe arborescens.

Li, T.L., Adhikari, K., Li, Y.S.

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: 178.49 kDa 
• Atom Count: 12,096 
• Modeled Residue Count: 1,560 
• Deposited Residue Count: 1,612 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Octaketide synthase 1	A, B, C, D	403	Aloe arborescens	Mutation(s): 0  EC: 2.3.1
UniProt
Find proteins for Q3L7F5 (Aloe arborescens) Explore Q3L7F5  Go to UniProtKB:  Q3L7F5

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free:  0.242 (Depositor), 0.240 (DCC) 
• R-Value Work:  0.225 (Depositor), 0.230 (DCC) 
• R-Value Observed: 0.225 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 131.901	α = 90
b = 51.679	β = 90
c = 131.883	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2022-01-19 
Deposition Author(s): Li, T.L., Adhikari, K., Li, Y.S.

Revision History  

• Version 1.0: 2022-01-19
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Refinement description