6NOI

Crystal structure of Tsn15 in apo form

• PDB DOI: https://doi.org/10.2210/pdb6NOI/pdb

• Classification: LYASE
• Organism(s): Streptomyces longisporoflavus
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): No 


• Deposited: 2019-01-16 Released: 2019-10-23 
• Deposition Author(s): Little, R., Paiva, F.C.R., Dias, M.V.B., Leadlay, P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.186 
• R-Value Work: 0.156 
• R-Value Observed: 0.157 

Literature

Unexpected enzyme-catalysed [4+2] cycloaddition and rearrangement in polyether antibiotic biosynthesis

Little, R., Paiva, F.C.R., Jenkins, R., Hong, H., Sun, Y., Demydchuk, Y., Samborskyy, M., Tosin, M., Leeper, F.J., Dias, M.V.B., Leadlay, P.F.

(2019) Nat Catal 

• DOI: https://doi.org/10.1038/s41929-019-0351-2

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)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 46.21 kDa 
• Atom Count: 3,669 
• Modelled Residue Count: 412 
• Deposited Residue Count: 416 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tsn15	A, B	208	Streptomyces longisporoflavus	Mutation(s): 0

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PGE	D [auth A]	TRIETHYLENE GLYCOL C6 H14 O4 ZIBGPFATKBEMQZ-UHFFFAOYSA-N
PEG	E [auth A]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
PO4	C [auth A], F [auth B]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.186 
• R-Value Work: 0.156 
• R-Value Observed: 0.157 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 128.838	α = 90
b = 36.938	β = 107.54
c = 91.815	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2019-10-23 
Deposition Author(s): Little, R., Paiva, F.C.R., Dias, M.V.B., Leadlay, P.

Revision History  

• Version 1.0: 2019-10-23
  Type: Initial release