6NNW | pdb_00006nnw

Tsn15 in complex with substrate intermediate

• PDB DOI: https://doi.org/10.2210/pdb6NNW/pdb

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


• Deposited: 2019-01-15 Released: 2019-10-23 
• Deposition Author(s): Paiva, F.C.R., Little, R., Leadlay, P., Dias, M.V.B.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 
  0.204 (Depositor), 0.205 (DCC) 
• R-Value Work: 
  0.170 (Depositor), 0.172 (DCC) 
• R-Value Observed: 
  0.172 (Depositor) 

Starting Model: experimental

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: 46.76 kDa 
• Atom Count: 3,562 
• Modeled Residue Count: 411 
• Deposited Residue Count: 416 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tetronasin	A, B	208	Streptomyces longisporoflavus	Mutation(s): 0
UniProt
Find proteins for A0A5S8WF63 (Streptomyces longisporoflavus) Explore A0A5S8WF63  Go to UniProtKB:  A0A5S8WF63

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
KUJ	C [auth A], D [auth B]	(3E)-3-{(1S,4S,4aS,5R,8aS)-1-[(2E,4R,7S,8E,10S)-1,7-dihydroxy-10-{(2R,3S,5R)-5-[(1S)-1-methoxyethyl]-3-methyloxolan-2-yl}-4-methylundeca-2,8-dien-2-yl]-4,5-dimethyloctahydro-3H-2-benzopyran-3-ylidene}oxolane-2,4-dione C35 H54 O8 RLWRBBXSBCBSGG-HASGRZBRSA-N
PO4	E [auth B]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
PPI	F [auth B]	PROPANOIC ACID C3 H6 O2 XBDQKXXYIPTUBI-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free:  0.204 (Depositor), 0.205 (DCC) 
• R-Value Work:  0.170 (Depositor), 0.172 (DCC) 
• R-Value Observed: 0.172 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 129.671	α = 90
b = 36.95	β = 107.83
c = 92.03	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

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

Revision History  

• Version 1.0: 2019-10-23
  Type: Initial release
  
• Version 1.1: 2023-10-11
  Changes: Data collection, Database references, Refinement description