4DZT | pdb_00004dzt

Aqualysin I: the crystal structure of a serine protease from an extreme thermophile, Thermus aquaticus YT-1

• PDB DOI: https://doi.org/10.2210/pdb4DZT/pdb

• Classification: HYDROLASE/HYDROLASE INHIBITOR
• Organism(s): Thermus aquaticus
• Mutation(s): No 


• Deposited: 2012-03-01 Released: 2012-03-28 
• Deposition Author(s): Barnett, B.L., Green, P.R., Strickland, L.C., Oliver, J.D., Rydel, T., Sullivan, J.F.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Work: 
  0.132 (Depositor), 0.127 (DCC) 

Starting Model: experimental

Literature

Aqualysin I: the crystal structure of a serine protease from an extreme thermophile, Thermus aquaticus YT-1

Barnett, B.L., Green, P.R., Strickland, L.C., Oliver, J.D., Rydel, T., Sullivan, J.F.

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)

Macromolecule Content 

• Total Structure Weight: 28.25 kDa 
• Atom Count: 2,130 
• Modeled Residue Count: 276 
• Deposited Residue Count: 276 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Aqualysin-1	A	276	Thermus aquaticus	Mutation(s): 0  EC: 3.4.21.111
UniProt
Find proteins for P08594 (Thermus aquaticus) Explore P08594  Go to UniProtKB:  P08594

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PMS	B [auth A]	phenylmethanesulfonic acid C7 H8 O3 S NIXKBAZVOQAHGC-UHFFFAOYSA-N
CA	C [auth A], D [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Work:  0.132 (Depositor), 0.127 (DCC) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.906	α = 90
b = 64.48	β = 109.1
c = 45.716	γ = 90

Software Package:

Software Name	Purpose
MAR345dtb	data collection
EPMR	phasing
SHELXL-97	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-03-28 
Deposition Author(s): Barnett, B.L., Green, P.R., Strickland, L.C., Oliver, J.D., Rydel, T., Sullivan, J.F.

Revision History  

• Version 1.0: 2012-03-28
  Type: Initial release
  
• Version 1.1: 2023-09-13
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.2: 2024-10-16
  Changes: Structure summary