7N7V

Crystal structure of TtnM, a Fe(II)-alpha-ketoglutarate-dependent hydroxylase from the tautomycetin biosynthesis pathway in Streptomyces griseochromogenes at 2 A.

• PDB DOI: https://doi.org/10.2210/pdb7N7V/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Streptomyces griseochromogenes
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2021-06-11 Released: 2022-07-06 
• Deposition Author(s): Han, L., Xu, W., Ma, M., Miller, M.D., Shen, B., Phillips Jr., G.N., Enzyme Discovery for Natural Product Biosynthesis (NatPro)
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), National Institutes of Health/National Cancer Institute (NIH/NCI), National Science Foundation (NSF, United States)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.99 Å
• R-Value Free: 0.223 
• R-Value Work: 0.187 
• R-Value Observed: 0.189 

Literature

Structure of TtnM, a Fe(II)-alpha-ketoglutarate-dependent hydroxylase from the tautomycetin biosynthesis pathway in Streptomyces griseochromogenes.

Yang, D., Yan, W., Li, G., Han, L., Lui, Y.-C., Ma, M., Meng, S., Xie, G., Xu, W., Miller, M.D., Phillips Jr., G.N., Shen, B.

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.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 83.35 kDa 
• Atom Count: 5,258 
• Modelled Residue Count: 634 
• Deposited Residue Count: 750 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Predicted hydroxylase	A, B	375	Streptomyces griseochromogenes	Mutation(s): 0  Gene Names: ttnM
UniProt
Find proteins for C6ZCS6 (Streptomyces griseochromogenes) Explore C6ZCS6  Go to UniProtKB:  C6ZCS6

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FE2 (Subject of Investigation/LOI)	C [auth A], F [auth B]	FE (II) ION Fe CWYNVVGOOAEACU-UHFFFAOYSA-N
CL	D [auth A], E [auth A], G [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.99 Å
• R-Value Free: 0.223 
• R-Value Work: 0.187 
• R-Value Observed: 0.189 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 50.57	α = 90
b = 84.516	β = 90
c = 168.92	γ = 90

Software Package:

Software Name	Purpose
XDS	data reduction
XDS	data scaling
RESOLVE	model building
PHENIX	refinement
PDB_EXTRACT	data extraction
AutoSol	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-07-06 
Deposition Author(s): Han, L., Xu, W., Ma, M., Miller, M.D., Shen, B., Phillips Jr., G.N., Enzyme Discovery for Natural Product Biosynthesis (NatPro)

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	U01-GM098248
National Institutes of Health/National Cancer Institute (NIH/NCI)	United States	R01-CA217255
National Science Foundation (NSF, United States)	United States	1231306

Revision History  

• Version 1.0: 2022-07-06
  Type: Initial release