5IGA

Crystal structure of a marine metagenome TRAP solute binding protein specific for aromatic acid ligands (Sorcerer II Global Ocean Sampling Expedition, unidentified microbe, locus tag GOS_1523157, Triple Surface Mutant K158A_K223A_K313A) in complex with co-purified parahydroxybenzoate

• PDB DOI: https://doi.org/10.2210/pdb5IGA/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): uncultured bacterium
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2016-02-27 Released: 2017-01-18 
• Deposition Author(s): Vetting, M.W., Al Obaidi, N.F., Hogle, S.L., Dupont, C.L., Almo, S.C.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.45 Å
• R-Value Free: 0.143 
• R-Value Work: 0.120 
• R-Value Observed: 0.121 

Starting Model: experimental

Re-refinement Note

A newer entry is available that reflects an alternative modeling of the original data: 6WGM

Literature

Crystal structure of a marine metagenome TRAP solute binding protein specific for aromatic acid ligands (Sorcerer II Global Ocean Sampling Expedition, unidentified microbe, locus tag GOS_1523157, Triple Surface Mutant K158A_K223A_K313A) in complex with co-purified parahydroxybenzoate

Vetting, M.W., Al Obaidi, N.F., Hogle, S.L., Dupont, C.L., Almo, S.C.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 38.27 kDa 
• Atom Count: 2,968 
• Modelled Residue Count: 320 
• Deposited Residue Count: 341 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRAP TRANSPORTER SOLUTE BINDING PROTEIN	A	341	uncultured bacterium	Mutation(s): 0

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PHB	H [auth A]	P-HYDROXYBENZOIC ACID C7 H6 O3 FJKROLUGYXJWQN-UHFFFAOYSA-N
TRS	G [auth A]	2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL C4 H12 N O3 LENZDBCJOHFCAS-UHFFFAOYSA-O
PEG	B [auth A], C [auth A], D [auth A], E [auth A], F [auth A]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N

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: 1.45 Å
• R-Value Free: 0.143 
• R-Value Work: 0.120 
• R-Value Observed: 0.121 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 39.83	α = 90
b = 84.47	β = 113.22
c = 46.069	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2017-01-18 
Deposition Author(s): Vetting, M.W., Al Obaidi, N.F., Hogle, S.L., Dupont, C.L., Almo, S.C.

Revision History  

• Version 1.0: 2017-01-18
  Type: Initial release
  
• Version 1.1: 2023-09-27
  Changes: Data collection, Database references, Refinement description
• Version 1.2: 2023-11-15
  Changes: Data collection
• Version 1.3: 2024-11-06
  Changes: Structure summary