3PIS

Crystal Structure of Carcinoscorpius rotundicauda Serine Protease Inhibitor Domain 1

• PDB DOI: https://doi.org/10.2210/pdb3PIS/pdb

• Classification: HYDROLASE INHIBITOR
• Organism(s): Carcinoscorpius rotundicauda
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2010-11-08 Released: 2010-12-08 
• Deposition Author(s): Giri, P.K., Tang, X.H., Sivaraman, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.256 
• R-Value Work: 0.215 
• R-Value Observed: 0.223 

Literature

Modifying the Substrate Specificity of Carcinoscorpius rotundicauda Serine Protease Inhibitor Domain 1 to Target Thrombin

Giri, P.K., Tang, X.H., Thangamani, S., Shenoy, R.T., Ding, J.L., Swaminathan, K., Sivaraman, J.

To be published.

Biological Assembly 1  

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

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

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 9.21 kDa 
• Atom Count: 629 
• Modelled Residue Count: 78 
• Deposited Residue Count: 84 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Kazal-type serine protease inhibitor SPI-1	A [auth D], B [auth A]	42	Carcinoscorpius rotundicauda	Mutation(s): 0  Gene Names: SPI-1
UniProt
Find proteins for A1X1V8 (Carcinoscorpius rotundicauda) Explore A1X1V8  Go to UniProtKB:  A1X1V8

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.256 
• R-Value Work: 0.215 
• R-Value Observed: 0.223 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 25.48	α = 90
b = 37.214	β = 99.8
c = 36.5	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-12-08 
Deposition Author(s): Giri, P.K., Tang, X.H., Sivaraman, J.

Revision History  

• Version 1.0: 2010-12-08
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance