2HCU

Crystal Structure Of Smu.1381 (or LeuD) from Streptococcus Mutans

• PDB DOI: https://doi.org/10.2210/pdb2HCU/pdb

• Classification: LYASE
• Organism(s): Streptococcus mutans
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2006-06-19 Released: 2006-07-04 
• Deposition Author(s): Gao, Z.Q., Hou, H.F., Li, L.F., Liang, Y.H., Su, X.D., Dong, Y.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.218 
• R-Value Work: 0.188 
• R-Value Observed: 0.189 

Literature

Crystal Structure Of Smu.1381 (or LeuD) from Streptococcus Mutans

Gao, Z.Q., Hou, H.F., Xu, R., Li, L.Q., Xu, J.H., Li, L.F., Liang, Y.H., Su, X.D., Liu, P., Dong, Y.H.

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: 24.66 kDa 
• Atom Count: 1,559 
• Modelled Residue Count: 177 
• Deposited Residue Count: 213 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3-isopropylmalate dehydratase small subunit	A	213	Streptococcus mutans	Mutation(s): 0  EC: 4.2.1.33
UniProt
Find proteins for Q8DTG5 (Streptococcus mutans serotype c (strain ATCC 700610 / UA159)) Explore Q8DTG5  Go to UniProtKB:  Q8DTG5

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A], C [auth A], D [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.218 
• R-Value Work: 0.188 
• R-Value Observed: 0.189 
• Space Group: P 6₅

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 74.033	α = 90
b = 74.033	β = 90
c = 82.519	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
MAR345	data collection
HKL-2000	data scaling
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-07-04 
Deposition Author(s): Gao, Z.Q., Hou, H.F., Li, L.F., Liang, Y.H., Su, X.D., Dong, Y.H.

Revision History  

• Version 1.0: 2006-07-04
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-18
  Changes: Refinement description
• Version 1.4: 2024-03-13
  Changes: Data collection, Database references, Derived calculations