6NEH

N191D, F205S mutant of scoulerine 9-O-methyltransferase from Thalictrum flavum complexed with (13aS)-3,10-dimethoxy-5,8,13,13a-tetrahydro-6H-isoquino[3,2-a]isoquinoline-2,9-diol and S-ADENOSYL-L-HOMOCYSTEINE

• PDB DOI: https://doi.org/10.2210/pdb6NEH/pdb

• Classification: BIOSYNTHETIC PROTEIN
• Organism(s): Thalictrum flavum subsp. glaucum
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2018-12-17 Released: 2019-12-18 
• Deposition Author(s): Valentic, T.R., Smolke, C.D., Payne, J.T.
• Funding Organization(s): National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.52 Å
• R-Value Free: 0.182 
• R-Value Work: 0.156 
• R-Value Observed: 0.157 

Starting Model: experimental

Literature

Structural and functional characterization of the scoulerine 9-O methyltransferase from Thalictrum flavum.

Valentic, T.R., Smolke, C.S., Payne, J.T.

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: 82.9 kDa 
• Atom Count: 5,818 
• Modelled Residue Count: 684 
• Deposited Residue Count: 750 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
(S)-scoulerine 9-O-methyltransferase	A, B	375	Thalictrum flavum subsp. glaucum	Mutation(s): 2  EC: 2.1.1.117
UniProt
Find proteins for Q5C9L2 (Thalictrum flavum subsp. glaucum) Explore Q5C9L2  Go to UniProtKB:  Q5C9L2

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SAH	C [auth A], E [auth B]	S-ADENOSYL-L-HOMOCYSTEINE C14 H20 N6 O5 S ZJUKTBDSGOFHSH-WFMPWKQPSA-N
SLX	D [auth A], F [auth B]	(13aS)-3,10-dimethoxy-5,8,13,13a-tetrahydro-6H-isoquino[3,2-a]isoquinoline-2,9-diol C19 H21 N O4 KNWVMRVOBAFFMH-HNNXBMFYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.52 Å
• R-Value Free: 0.182 
• R-Value Work: 0.156 
• R-Value Observed: 0.157 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 61.13	α = 90
b = 77.74	β = 91.85
c = 67.35	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
iMOSFLM	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-12-18 
Deposition Author(s): Valentic, T.R., Smolke, C.D., Payne, J.T.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)	United States	DP1AT007886-05

Revision History  

• Version 1.0: 2019-12-18
  Type: Initial release
  
• Version 1.1: 2024-03-13
  Changes: Data collection, Database references
• Version 1.2: 2024-04-03
  Changes: Refinement description