1TK4

Crystal structure of russells viper phospholipase A2 in complex with a specifically designed tetrapeptide Ala-Ile-Arg-Ser at 1.1 A resolution

• PDB DOI: https://doi.org/10.2210/pdb1TK4/pdb

• Classification: HYDROLASE
• Organism(s): Daboia russelii pulchella
• Mutation(s): No 


• Deposited: 2004-06-08 Released: 2004-06-22 
• Deposition Author(s): Singh, N., Bilgrami, S., Somvanshi, R.K., Sharma, S., Dey, S., Perbandt, M., Betzel, C., Kaur, P., Singh, T.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.10 Å
• R-Value Free: 0.185 
• R-Value Work: 0.168 
• R-Value Observed: 0.168 

Starting Model: experimental

Literature

Crystal structure of russells viper phospholipase A2 with a specifically designed tetrapeptide Ala-Ile-Arg-Ser at 1.1 A resolution

Singh, N., Bilgrami, S., Somvanshi, R.K., Sharma, S., Dey, S., Perbandt, M., Betzel, C., Kaur, P., Singh, T.P.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

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

Macromolecule Content

• Total Structure Weight: 14.36 kDa 
• Atom Count: 1,205 
• Modelled Residue Count: 125 
• Deposited Residue Count: 125 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phospholipase A2 VRV-PL-VIIIa	A	121	Daboia russelii pulchella	Mutation(s): 0  EC: 3.1.1.4
UniProt
Find proteins for P59071 (Daboia russelii) Explore P59071  Go to UniProtKB:  P59071

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Tetrapeptide Ala-Ile-Arg-Ser	B	4	N/A	Mutation(s): 0

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.10 Å
• R-Value Free: 0.185 
• R-Value Work: 0.168 
• R-Value Observed: 0.168 
• Space Group: P 4₃

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.512	α = 90
b = 52.512	β = 90
c = 48.088	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-06-22 
Deposition Author(s): Singh, N., Bilgrami, S., Somvanshi, R.K., Sharma, S., Dey, S., Perbandt, M., Betzel, C., Kaur, P., Singh, T.P.

Revision History  

• Version 1.0: 2004-06-22
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-23
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-11-06
  Changes: Structure summary