7CRN

The Functional Characterization and Crystal Structure of the Bifunctional Thioesterase Catalyzing Epimerization and Cyclization

• PDB DOI: https://doi.org/10.2210/pdb7CRN/pdb

• Classification: BIOSYNTHETIC PROTEIN
• Organism(s): Streptomyces abietis
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2020-08-14 Released: 2021-08-18 
• Deposition Author(s): Yu, J.H., Song, J., Chi, C.B., Ma, M.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.26 Å
• R-Value Free: 0.206 
• R-Value Work: 0.178 
• R-Value Observed: 0.179 

Literature

Functional Characterization and Crystal Structure of the Bifunctional Thioesterase Catalyzing Epimerization and Cyclization in Skyllamycin Biosynthesis

Yu, J., Juan, S., Chi, C., Liu, T., Geng, T., Cai, Z., Dong, W., Shi, C., Ma, X., Zhang, Z., Ma, X., Xing, B., Jin, H., Zhang, L., Dong, S., Yang, D., Ma, M.

(2021) ACS Catal 11: 11733-11741

• DOI: https://doi.org/10.1021/acscatal.1c03064

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

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 90.66 kDa 
• Atom Count: 6,149 
• Modelled Residue Count: 791 
• Deposited Residue Count: 834 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Non-ribosomal peptide synthetase 4	A, B, C	278	Streptomyces abietis	Mutation(s): 0  Gene Names: nrps4
UniProt
Find proteins for A0A1J0R317 (Streptomyces sp) Explore A0A1J0R317  Go to UniProtKB:  A0A1J0R317

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.26 Å
• R-Value Free: 0.206 
• R-Value Work: 0.178 
• R-Value Observed: 0.179 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.132	α = 90
b = 117.665	β = 90
c = 209.793	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
Coot	model building
HKL-2000	data scaling
HKL-2000	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-08-18 
Deposition Author(s): Yu, J.H., Song, J., Chi, C.B., Ma, M.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	21877002, 81673332, 81991525, 81573326

Revision History  

• Version 1.0: 2021-08-18
  Type: Initial release
  
• Version 1.1: 2022-03-02
  Changes: Database references
• Version 1.2: 2023-11-29
  Changes: Data collection, Refinement description