1TR9

Structure of beta-hexosaminidase from Vibrio cholerae

• PDB DOI: https://doi.org/10.2210/pdb1TR9/pdb

• Classification: HYDROLASE
• Organism(s): Vibrio cholerae
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2004-06-21 Released: 2004-12-14 
• Deposition Author(s): Gorman, J., Shapiro, L., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.203 
• R-Value Work: 0.170 
• R-Value Observed: 0.172 

Literature

Structure of beta-hexosaminidase from Vibrio cholerae

Gorman, J., Shapiro, L.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 38.3 kDa 
• Atom Count: 2,836 
• Modelled Residue Count: 330 
• Deposited Residue Count: 341 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-hexosaminidase	A	341	Vibrio cholerae	Mutation(s): 12  Gene Names: Name=nagZ EC: 3.2.1.52
UniProt
Find proteins for Q9KU37 (Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)) Explore Q9KU37  Go to UniProtKB:  Q9KU37

Small Molecules

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: 1.80 Å
• R-Value Free: 0.203 
• R-Value Work: 0.170 
• R-Value Observed: 0.172 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.98	α = 90
b = 79.378	β = 90
c = 86.685	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-12-14 
Deposition Author(s): Gorman, J., Shapiro, L., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

Revision History  

• Version 1.0: 2004-12-14
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-02-03
  Changes: Database references, Derived calculations, Structure summary
• Version 1.4: 2024-10-16
  Changes: Data collection, Database references, Structure summary