1FEA

UNLIGANDED CRITHIDIA FASCICULATA TRYPANOTHIONE REDUCTASE AT 2.2 ANGSTROM RESOLUTION

• PDB DOI: https://doi.org/10.2210/pdb1FEA/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Crithidia fasciculata
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1995-07-12 Released: 1997-01-11 
• Deposition Author(s): Strickland, C., Karplus, P.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Work: 
  0.185 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.185 (Depositor) 

Literature

Crithidia Fasciculata Trypanothione Reductase at 1.70 A Resolution

Strickland, C.L., Karplus, P.A.

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 and generated by PISA (software)

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: 215.85 kDa 
• Atom Count: 15,364 
• Modelled Residue Count: 1,942 
• Deposited Residue Count: 1,960 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRYPANOTHIONE REDUCTASE	A, B, C, D	490	Crithidia fasciculata	Mutation(s): 0  Gene Names: TR1 EC: 1.6.4.8 (PDB Primary Data), 1.8.1.12 (UniProt)
UniProt
Find proteins for P39040 (Crithidia fasciculata) Explore P39040  Go to UniProtKB:  P39040

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FAD	E [auth A], F [auth B], G [auth C], H [auth D]	FLAVIN-ADENINE DINUCLEOTIDE C27 H33 N9 O15 P2 VWWQXMAJTJZDQX-UYBVJOGSSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Work:  0.185 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.185 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 123	α = 90
b = 160.8	β = 93.8
c = 58.5	γ = 90

Software Package:

Software Name	Purpose
SDMS	data collection
SCALEPACK	data scaling
X-PLOR	model building
X-PLOR	refinement
SDMS	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-01-11 
Deposition Author(s): Strickland, C., Karplus, P.

Revision History  

• Version 1.0: 1997-01-11
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-10-30
  Changes: Data collection, Database references, Derived calculations, Structure summary