6IV7

The crystal structure of a SAM-dependent enzyme from aspergillus flavus

• PDB DOI: https://doi.org/10.2210/pdb6IV7/pdb

• Classification: TRANSFERASE
• Organism(s): Aspergillus flavus NRRL3357
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2018-12-02 Released: 2019-02-06 
• Deposition Author(s): Zhou, Y.Z., Peng, T., Liao, L.J., Liu, X.K., Zhao, Y.C., Guo, Y., Zeng, Z.X.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.94 Å
• R-Value Free: 0.238 
• R-Value Work: 0.202 
• R-Value Observed: 0.204 

Literature

The crystal structure of A SAM-Dependent enzyme from Aspergillus flavus

Zhou, Y.Z., Peng, T., Liao, L.J., Zhao, Y.C., Liu, X.K., Guo, Y., Zeng, Z.X.

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: homology

Macromolecule Content

• Total Structure Weight: 87.24 kDa 
• Atom Count: 6,316 
• Modelled Residue Count: 772 
• Deposited Residue Count: 772 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
methyltransferase lepI	A, B	386	Aspergillus flavus NRRL3357	Mutation(s): 0  Gene Names: lepI, AFLA_066940 EC: 2.1.1
UniProt
Find proteins for B8NJH3 (Aspergillus flavus (strain ATCC 200026 / FGSC A1120 / IAM 13836 / NRRL 3357 / JCM 12722 / SRRC 167)) Explore B8NJH3  Go to UniProtKB:  B8NJH3

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SAH	C [auth A], D [auth B]	S-ADENOSYL-L-HOMOCYSTEINE C14 H20 N6 O5 S ZJUKTBDSGOFHSH-WFMPWKQPSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.94 Å
• R-Value Free: 0.238 
• R-Value Work: 0.202 
• R-Value Observed: 0.204 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 160.556	α = 90
b = 62.225	β = 113.06
c = 113.354	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
PHENIX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2019-02-06 
Deposition Author(s): Zhou, Y.Z., Peng, T., Liao, L.J., Liu, X.K., Zhao, Y.C., Guo, Y., Zeng, Z.X.

Revision History  

• Version 1.0: 2019-02-06
  Type: Initial release
  
• Version 1.1: 2024-03-27
  Changes: Data collection, Database references