6L7J | pdb_00006l7j

Quinolone synthase (QNS) from Aegle marmelos Correa., complexed with Coenzyme A

• PDB DOI: https://doi.org/10.2210/pdb6L7J/pdb

• Classification: PLANT PROTEIN
• Organism(s): Aegle marmelos
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2019-11-01 Released: 2020-11-04 
• Deposition Author(s): Mallika, V., Abhinav, K.V., Frandsen, K.E.H., Soniya, E.V.
• Funding Organization(s): Council of Scientific & Industrial Research (CSIR), Novo Nordisk Foundation

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.199 (Depositor), 0.199 (DCC) 
• R-Value Work: 
  0.175 (Depositor), 0.175 (DCC) 
• R-Value Observed: 
  0.176 (Depositor) 

Starting Model: experimental

Literature

Structural and mechanistic insights into Quinolone Synthase to address its functional promiscuity

Mallika, V., Abhinav, K.V., Frandsen, K.E.H., Soniya, E.V.

(2024) Commun Biol 

• DOI: https://doi.org/10.1038/s42003-024-06152-2

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)

Macromolecule Content 

• Total Structure Weight: 43.7 kDa 
• Atom Count: 3,220 
• Modeled Residue Count: 376 
• Deposited Residue Count: 391 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Type III polyketide synthase	A	391	Aegle marmelos	Mutation(s): 0
UniProt
Find proteins for M1HE54 (Aegle marmelos) Explore M1HE54  Go to UniProtKB:  M1HE54

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
COA (Subject of Investigation/LOI)	B [auth A]	COENZYME A C21 H36 N7 O16 P3 S RGJOEKWQDUBAIZ-IBOSZNHHSA-N

Modified Residues  2 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CSD	A	L-PEPTIDE LINKING	C3 H7 N O4 S		CYS
CSO	A	L-PEPTIDE LINKING	C3 H7 N O3 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.199 (Depositor), 0.199 (DCC) 
• R-Value Work:  0.175 (Depositor), 0.175 (DCC) 
• R-Value Observed: 0.176 (Depositor) 

Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 150.86	α = 90
b = 150.86	β = 90
c = 105.61	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2020-11-04 
Deposition Author(s): Mallika, V., Abhinav, K.V., Frandsen, K.E.H., Soniya, E.V.

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Funding Organization	Location	Grant Number
Council of Scientific & Industrial Research (CSIR)	India	09/716(0178)/2018-EMR-1 dated 26.04.2018
Novo Nordisk Foundation	Denmark	NNF21OC0071799

Revision History  

• Version 1.0: 2020-11-04
  Type: Initial release
  
• Version 1.1: 2023-11-22
  Changes: Data collection, Database references, Refinement description
• Version 2.0: 2024-03-06
  Type: Coordinate replacement
  Reason: Model completeness
  Changes: Advisory, Atomic model, Author supporting evidence, Data collection, Database references, Derived calculations, Non-polymer description, Other, Polymer sequence, Refinement description, Source and taxonomy, Structure summary
• Version 2.1: 2024-05-08
  Changes: Database references
• Version 2.2: 2024-10-23
  Changes: Structure summary