1TG1

Crystal Structure of the complex formed between russells viper phospholipase A2 and a designed peptide inhibitor PHQ-Leu-Val-Arg-Tyr at 1.2A resolution

• PDB DOI: https://doi.org/10.2210/pdb1TG1/pdb

• Classification: HYDROLASE/HYDROLASE INHIBITOR
• Organism(s): Daboia russelii russelii, synthetic construct
• Mutation(s): No 


• Deposited: 2004-05-28 Released: 2004-06-08 
• Deposition Author(s): Singh, N., Kaur, P., Somvanshi, R.K., Sharma, S., Dey, S., Perbandt, M., Betzel, C., Singh, T.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.25 Å
• R-Value Free: 0.197 
• R-Value Work: 0.188 
• R-Value Observed: 0.188 

Starting Model: experimental

Literature

Crystal Structure of the complex formed between russells viper phospholipase A2 and a designed peptide inhibitor Cbz-dehydro-Leu-Val-Arg-Tyr at 1.2A resolution

Singh, N., Kaur, P., Somvanshi, R.K., Sharma, S., Dey, S., Perbandt, M., Betzel, C., 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: 14.75 kDa 
• Atom Count: 1,222 
• Modelled Residue Count: 126 
• Deposited Residue Count: 126 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phospholipase A2	A	121	Daboia russelii russelii	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
peptide inhibitor	B [auth C]	5	synthetic construct	Mutation(s): 0

Small Molecules

Ligands 3 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
ACY	F [auth A]	ACETIC ACID C2 H4 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-N
MOH	G [auth A], H [auth A]	METHANOL C H4 O OKKJLVBELUTLKV-UHFFFAOYSA-N

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_000272	B [auth C]	CBZ-DEHYDRO-LEU-VAL-ARG-TYR	Peptide-like / Inhibitor

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.25 Å
• R-Value Free: 0.197 
• R-Value Work: 0.188 
• R-Value Observed: 0.188 
• Space Group: P 4₃

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.496	α = 90
b = 52.496	β = 90
c = 47.93	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MAR345	data collection
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

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

Revision History  

• Version 1.0: 2004-06-08
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
• Version 1.3: 2012-12-12
  Changes: Other
• Version 1.4: 2017-10-11
  Changes: Refinement description
• Version 1.5: 2023-08-23
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 2.0: 2024-02-28
  Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Source and taxonomy, Structure summary