6DFU

Tryptophan--tRNA ligase from Haemophilus influenzae.

• PDB DOI: https://doi.org/10.2210/pdb6DFU/pdb

• Classification: LIGASE
• Organism(s): Haemophilus influenzae Rd KW20
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2018-05-15 Released: 2018-05-23 
• Deposition Author(s): Osipiuk, J., Maltseva, N., Mulligan, R., Grimshaw, S., Satchell, K.J.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.238 
• R-Value Work: 0.187 
• R-Value Observed: 0.190 

Starting Model: experimental

Literature

Tryptophan--tRNA ligase from Haemophilus influenzae.

Osipiuk, J., Maltseva, N., Mulligan, R., Grimshaw, S., Satchell, K.J.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

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)

Macromolecule Content

• Total Structure Weight: 75.84 kDa 
• Atom Count: 5,566 
• Modelled Residue Count: 663 
• Deposited Residue Count: 674 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tryptophan--tRNA ligase	A, B	337	Haemophilus influenzae Rd KW20	Mutation(s): 0  Gene Names: trpS, HI_0637 EC: 6.1.1.2
UniProt
Find proteins for P43835 (Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd)) Explore P43835  Go to UniProtKB:  P43835

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
TRP	C [auth A], D [auth B]	TRYPTOPHAN C11 H12 N2 O2 QIVBCDIJIAJPQS-VIFPVBQESA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.238 
• R-Value Work: 0.187 
• R-Value Observed: 0.190 
• Space Group: P 1 2₁ 1
• Diffraction Data: https://doi.org/10.18430/m36dfu

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 70.294	α = 90
b = 48.677	β = 101.13
c = 99.322	γ = 90

Software Package:

Software Name	Purpose
HKL-3000	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-3000	data reduction
HKL-3000	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2018-05-23 
Deposition Author(s): Osipiuk, J., Maltseva, N., Mulligan, R., Grimshaw, S., Satchell, K.J.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	HHSN272201200026C
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	HHSN272201700060C

Revision History  

• Version 1.0: 2018-05-23
  Type: Initial release
  
• Version 1.1: 2019-12-18
  Changes: Author supporting evidence
• Version 1.2: 2023-10-11
  Changes: Data collection, Database references, Refinement description