2SNS

STAPHYLOCOCCAL NUCLEASE. PROPOSED MECHANISM OF ACTION BASED ON STRUCTURE OF ENZYME-THYMIDINE 3(PRIME),5(PRIME)-BIPHOSPHATE-CALCIUM ION COMPLEX AT 1.5-ANGSTROMS RESOLUTION

• PDB DOI: https://doi.org/10.2210/pdb2SNS/pdb
• Entry: 2SNS supersedes: 1SNS

• Classification: HYDROLASE (PHOSPHORIC DIESTER)
• Organism(s): Staphylococcus aureus
• Mutation(s): No 


• Deposited: 1982-05-14 Released: 1982-07-29 
• Deposition Author(s): Legg, M.J., Cotton, F.A., Hazen Jr., E.E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å

Literature

Cotton, F.A., Hazen Jr., E.E., Legg, M.J.

(1977) Int Congr Ser 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 17.28 kDa 
• Atom Count: 1,151 
• Modelled Residue Count: 141 
• Deposited Residue Count: 149 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
THERMONUCLEASE PRECURSOR	A	149	Staphylococcus aureus	Mutation(s): 0  EC: 3.1.31.1
UniProt
Find proteins for P00644 (Staphylococcus aureus) Explore P00644  Go to UniProtKB:  P00644

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
THP	C [auth A]	THYMIDINE-3',5'-DIPHOSPHATE C10 H16 N2 O11 P2 CSNCBOPUCJOHLS-XLPZGREQSA-N
CA	B [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• Space Group: P 4₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.19	α = 90
b = 48.19	β = 90
c = 63.4	γ = 90

Structure Validation

Entry History 

Deposition Data

• Released Date: 1982-07-29 
Deposition Author(s): Legg, M.J., Cotton, F.A., Hazen Jr., E.E.
• This entry supersedes: 1SNS

Revision History  

• Version 1.0: 1982-07-29
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2012-05-02
  Changes: Structure summary
• Version 1.4: 2017-11-29
  Changes: Derived calculations, Other