3CP7

Crystal structure of a thermostable serine protease AL20 from extremophilic microoganism

• PDB DOI: https://doi.org/10.2210/pdb3CP7/pdb

• Classification: HYDROLASE
• Organism(s): Nesterenkonia aethiopica
• Mutation(s): No 


• Deposited: 2008-03-31 Released: 2009-02-10 
• Deposition Author(s): Yang, N., Nan, J., Su, X.-D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.39 Å
• R-Value Free: 
  0.199 (Depositor), 0.200 (DCC) 
• R-Value Work: 
  0.178 (Depositor), 0.180 (DCC) 
• R-Value Observed: 
  0.179 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of an alkaline serine protease from Nesterenkonia sp. defines a novel family of secreted bacterial proteases

Yang, N., Nan, J., Brostromer, E., Hatti-Kaul, R., Su, X.-D.

(2008) Proteins 73: 1072-1075

• PubMed: 18814301 
• DOI: https://doi.org/10.1002/prot.22233
• Primary Citation of Related Structures:  
  3CP7

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Organizational Affiliation: 

Shenzhen Graduate School of Peking University, Shenzhen 518055, China.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 45.99 kDa 
• Atom Count: 3,871 
• Modelled Residue Count: 432 
• Deposited Residue Count: 436 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
alkaline serine protease AL20	A, B	218	N/A	Mutation(s): 0  EC: 3.4.21.1
UniProt
Find proteins for D0VWT7 (Nesterenkonia aethiopica) Explore D0VWT7  Go to UniProtKB:  D0VWT7

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FMT	C [auth A], D [auth B]	FORMIC ACID C H2 O2 BDAGIHXWWSANSR-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.39 Å
• R-Value Free:  0.199 (Depositor), 0.200 (DCC) 
• R-Value Work:  0.178 (Depositor), 0.180 (DCC) 
• R-Value Observed: 0.179 (Depositor) 

Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 92.26	α = 90
b = 92.26	β = 90
c = 137.88	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
MAR345dtb	data collection
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-02-10 
Deposition Author(s): Yang, N., Nan, J., Su, X.-D.

Revision History  

• Version 1.0: 2009-02-10
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2018-05-23
  Changes: Data collection
• Version 1.3: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-11-06
  Changes: Structure summary