8H4H | pdb_00008h4h

The apo structure of Aspergillomarasmine A synthetase

• PDB DOI: https://doi.org/10.2210/pdb8H4H/pdb

• Classification: BIOSYNTHETIC PROTEIN
• Organism(s): Pyrenophora teres f. teres 0-1
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-10-10 Released: 2023-10-18 
• Deposition Author(s): Lu, M., Zhang, J., Wang, Z., Han, L.
• Funding Organization(s): National Natural Science Foundation of China (NSFC), National Science Foundation (NSF, China)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 
  0.260 (Depositor), 0.262 (DCC) 
• R-Value Work: 
  0.240 (Depositor), 0.240 (DCC) 
• R-Value Observed: 
  0.240 (Depositor) 

Literature

Investigation of AMA Synthase from Pyrenophora teres f. teres 0-1 for the Synthesis of Aspergillomarasmine A Analogues and Non-Canonical Amino Acids

Zhu, Z., Ma, Y., Xie, X., Wang, Z., Han, L., Song, J., Liang, Y., Poelarends, G.J., Chen, Y., Lu, M., Zhang, J.

(2024) Adv Synth Catal 366: 5160-5170

• DOI: https://doi.org/10.1002/adsc.202401118

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 117.8 kDa 
• Atom Count: 7,466 
• Modeled Residue Count: 959 
• Deposited Residue Count: 1,062 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Rhodanese domain-containing protein	A [auth N], B [auth A]	531	Pyrenophora teres f. teres 0-1	Mutation(s): 0  Gene Names: PTT_12124
UniProt
Find proteins for E3RT21 (Pyrenophora teres f. teres (strain 0-1)) Explore E3RT21  Go to UniProtKB:  E3RT21

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
LLP	A [auth N], B [auth A]	L-PEPTIDE LINKING	C14 H22 N3 O7 P		LYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free:  0.260 (Depositor), 0.262 (DCC) 
• R-Value Work:  0.240 (Depositor), 0.240 (DCC) 
• R-Value Observed: 0.240 (Depositor) 

Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 71.89	α = 90
b = 264.099	β = 90
c = 163.368	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-10-18 
Deposition Author(s): Lu, M., Zhang, J., Wang, Z., Han, L.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	82003627
National Science Foundation (NSF, China)	China	BK20200565

Revision History  

• Version 1.0: 2023-10-18
  Type: Initial release
  
• Version 2.0: 2025-04-30
  Changes: Atomic model, Author supporting evidence, Data collection, Database references, Derived calculations, Non-polymer description, Polymer sequence, Source and taxonomy, Structure summary