2ECQ

Crystal Structure of T.th. HB8 O-acetylserine sulfhydrylase Complexed with 3-Hydroxylactate

• PDB DOI: https://doi.org/10.2210/pdb2ECQ/pdb

• Classification: TRANSFERASE
• Organism(s): Thermus thermophilus HB8
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2007-02-13 Released: 2008-02-19 
• Deposition Author(s): Goto, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.200 
• R-Value Work: 0.179 
• R-Value Observed: 0.179 

Starting Model: experimental

Literature

Crystal Structure of T.th. HB8 O-acetylserine sulfhydrylase Complexed with 3-Hydroxylactate

Goto, M.

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,PQS (software)

Macromolecule Content

• Total Structure Weight: 33.42 kDa 
• Atom Count: 2,650 
• Modelled Residue Count: 302 
• Deposited Residue Count: 304 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
O-acetylserine (Thiol)-lyase	A	304	Thermus thermophilus HB8	Mutation(s): 0  EC: 2.5.1.47
UniProt
Find proteins for Q5SLE6 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8)) Explore Q5SLE6  Go to UniProtKB:  Q5SLE6

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PLP	B [auth A]	PYRIDOXAL-5'-PHOSPHATE C8 H10 N O6 P NGVDGCNFYWLIFO-UHFFFAOYSA-N
3HL	C [auth A]	(3S)-3-HYDROXYBUTANOIC ACID C4 H8 O3 WHBMMWSBFZVSSR-VKHMYHEASA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.200 
• R-Value Work: 0.179 
• R-Value Observed: 0.179 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 104.531	α = 90
b = 104.531	β = 90
c = 79.802	γ = 120

Software Package:

Software Name	Purpose
CNS	refinement
CrystalClear	data collection
CrystalClear	data reduction
CrystalClear	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-02-19 
Deposition Author(s): Goto, M.

Revision History  

• Version 1.0: 2008-02-19
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Derived calculations, Source and taxonomy, Version format compliance
• Version 1.2: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description