2OQK

Crystal structure of putative Cryptosporidium parvum translation initiation factor eIF-1A

• PDB DOI: https://doi.org/10.2210/pdb2OQK/pdb

• Classification: TRANSLATION
• Organism(s): Cryptosporidium parvum Iowa II
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2007-01-31 Released: 2007-02-13 
• Deposition Author(s): Dong, A., Lew, J., Zhao, Y., Hassanali, A., Lin, L., Qiu, W., Brokx, S.J., Wasney, G., Vedadi, M., Kozieradzki, I., Bochkarev, A., Edwards, A.M., Arrowsmith, C.H., Weigelt, J., Sundstrom, M., Hui, R., Altamentova, S., Structural Genomics Consortium (SGC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.241 
• R-Value Work: 0.205 
• R-Value Observed: 0.207 

Literature

Crystal structure of putative Cryptosporidium parvum translation initiation factor eIF-1A

Dong, A., Lew, J., Zhao, Y., Hassanali, A., Lin, L., Qiu, W., Brokx, S.J., Wasney, G., Vedadi, M., Kozieradzki, I., Bochkarev, A., Edwards, A.M., Arrowsmith, C.H., Weigelt, J., Sundstrom, M., Hui, R., Altamentova, S.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PQS (software)

Biological Assembly 2  

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

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 13.66 kDa 
• Atom Count: 902 
• Modelled Residue Count: 94 
• Deposited Residue Count: 117 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative translation initiation factor eIF-1A	A	117	Cryptosporidium parvum Iowa II	Mutation(s): 3  Gene Names: cgd8_3330
UniProt
Find proteins for Q5CVP1 (Cryptosporidium parvum (strain Iowa II)) Explore Q5CVP1  Go to UniProtKB:  Q5CVP1

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.241 
• R-Value Work: 0.205 
• R-Value Observed: 0.207 
• Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 94.769	α = 90
b = 94.769	β = 90
c = 113.883	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
CBASS	data collection
HKL-2000	data reduction
HKL-2000	data scaling
SOLVE	phasing
RESOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-02-13 
Deposition Author(s): Dong, A., Lew, J., Zhao, Y., Hassanali, A., Lin, L., Qiu, W., Brokx, S.J., Wasney, G., Vedadi, M., Kozieradzki, I., Bochkarev, A., Edwards, A.M., Arrowsmith, C.H., Weigelt, J., Sundstrom, M., Hui, R., Altamentova, S., Structural Genomics Consortium (SGC)

Revision History  

• Version 1.0: 2007-02-13
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2023-12-27
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2024-11-20
  Changes: Structure summary