3HSI

Crystal structure of phosphatidylserine synthase Haemophilus influenzae Rd KW20

• PDB DOI: https://doi.org/10.2210/pdb3HSI/pdb

• Classification: TRANSFERASE
• Organism(s): Haemophilus influenzae
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-06-10 Released: 2009-06-30 
• Deposition Author(s): Chang, C., Li, H., Buck, K., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.236 
• R-Value Work: 0.190 
• R-Value Observed: 0.192 

Literature

Crystal structure of phosphatidylserine synthase Haemophilus influenzae Rd KW20

Chang, C., Li, H., Buck, K., Joachimiak, A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 generated by PISA (software)

Biological Assembly 2  

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

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 160.96 kDa 
• Atom Count: 11,690 
• Modelled Residue Count: 1,346 
• Deposited Residue Count: 1,374 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phosphatidylserine synthase	A, B, C	458	Haemophilus influenzae	Mutation(s): 0  Gene Names: pssA, HI0425 EC: 2.7.8.8
UniProt
Find proteins for P44704 (Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd)) Explore P44704  Go to UniProtKB:  P44704

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.236 
• R-Value Work: 0.190 
• R-Value Observed: 0.192 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 102.555	α = 90
b = 154.238	β = 90
c = 214.42	γ = 90

Software Package:

Software Name	Purpose
SBC-Collect	data collection
HKL-3000	phasing
MLPHARE	phasing
DM	model building
SHELXD	phasing
SHELXE	model building
RESOLVE	model building
ARP/wARP	model building
Coot	model building
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
DM	phasing
RESOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-06-30 
Deposition Author(s): Chang, C., Li, H., Buck, K., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2009-06-30
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2017-11-01
  Changes: Refinement description
• Version 1.3: 2024-11-27
  Changes: Data collection, Database references, Derived calculations, Structure summary