3G8Z | pdb_00003g8z

Crystal structure of protein of unknown function with cystatin-like fold (NP_639274.1) from Xanthomonas campestris at 1.90 A resolution

• PDB DOI: https://doi.org/10.2210/pdb3G8Z/pdb

• Classification: STRUCTURAL GENOMICS, UNKNOWN FUNCTION
• Organism(s): Xanthomonas campestris pv. campestris
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-02-12 Released: 2009-02-24 
• Deposition Author(s): Joint Center for Structural Genomics (JCSG)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.201 (Depositor), 0.204 (DCC) 
• R-Value Work: 
  0.169 (Depositor), 0.177 (DCC) 
• R-Value Observed: 
  0.170 (Depositor) 

Literature

Crystal structure of protein of unknown function with cystatin-like fold (NP_639274.1) from Xanthomonas campestris at 1.90 A resolution

Joint Center for Structural Genomics (JCSG)

To be published.

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)

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 16.89 kDa 
• Atom Count: 1,131 
• Modeled Residue Count: 129 
• Deposited Residue Count: 148 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein of unknown function with cystatin-like fold	A	148	Xanthomonas campestris pv. campestris	Mutation(s): 0  Gene Names: NP_639274.1, XCC3934
UniProt
Find proteins for Q8P3Y3 (Xanthomonas campestris pv. campestris (strain ATCC 33913 / DSM 3586 / NCPPB 528 / LMG 568 / P 25)) Explore Q8P3Y3  Go to UniProtKB:  Q8P3Y3

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	D [auth A], E [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CL	B [auth A], C [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.201 (Depositor), 0.204 (DCC) 
• R-Value Work:  0.169 (Depositor), 0.177 (DCC) 
• R-Value Observed: 0.170 (Depositor) 

Diffraction Data: https://doi.org/10.18430/M33G8Z

Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 69.99	α = 90
b = 69.99	β = 90
c = 46.41	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SOLVE	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
MAR345	data collection
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-02-24 
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2009-02-24
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2017-10-25
  Changes: Author supporting evidence, Refinement description
• Version 1.3: 2019-07-24
  Changes: Data collection, Derived calculations, Refinement description
• Version 1.4: 2023-02-01
  Changes: Database references, Derived calculations
• Version 1.5: 2024-11-27
  Changes: Data collection, Structure summary