1FEC

UNLIGANDED CRITHIDIA FASCICULATA TRYPANOTHIONE REDUCTASE AT 1.7 ANGSTROM RESOLUTION

• PDB DOI: https://doi.org/10.2210/pdb1FEC/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.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.256 
• R-Value Work: 0.204 
• R-Value Observed: 0.204 

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)

Macromolecule Content

• Total Structure Weight: 107.92 kDa 
• Atom Count: 8,547 
• Modelled Residue Count: 970 
• Deposited Residue Count: 980 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRYPANOTHIONE REDUCTASE	A, B	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	C [auth A], D [auth B]	FLAVIN-ADENINE DINUCLEOTIDE C27 H33 N9 O15 P2 VWWQXMAJTJZDQX-UYBVJOGSSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.256 
• R-Value Work: 0.204 
• R-Value Observed: 0.204 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.8	α = 90
b = 160.7	β = 99.4
c = 60	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	model building
X-PLOR	refinement
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: 2024-11-20
  Changes: Data collection, Database references, Derived calculations, Structure summary