7MQ6

Tetragonal Maltose Binding Protein in the presence of gold


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.37 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.212 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure-guided identification of a peptide for bio-enabled gold nanoparticle synthesis.

Thaker, A.Sirajudeen, L.Simmons, C.R.Nannenga, B.L.

(2021) Biotechnol Bioeng 118: 4867-4873

  • DOI: https://doi.org/10.1002/bit.27927
  • Primary Citation of Related Structures:  
    7MQ6, 7MQ7

  • PubMed Abstract: 

    In this study, we show that maltose-binding protein (MBP) is capable of facilitating stable gold nanoparticle synthesis, and a structure of MBP in the presence of gold ions was determined by X-ray crystallography. Using this high-resolution structure of gold ion bound MBP, a peptide (AT1) was selected and synthesized and was shown to also aid in the synthesis of stable gold nanoparticles under similar experimental conditions to those used for protein facilitated synthesis. This structure-based approach represents a new potential method for the selection of peptides capable of facilitating stable nanoparticle synthesis.


  • Organizational Affiliation

    Chemical Engineering, School for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, Arizona, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Maltodextrin-binding protein373Escherichia coliMutation(s): 0 
Gene Names: malEGF950_09430
UniProt
Find proteins for P0AEX9 (Escherichia coli (strain K12))
Explore P0AEX9 
Go to UniProtKB:  P0AEX9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0AEX9
Sequence Annotations
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-glucopyranose-(1-4)-beta-D-glucopyranoseB [auth F]2N/A
Glycosylation Resources
GlyTouCan:  G66120GK
GlyCosmos:  G66120GK
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
AU (Subject of Investigation/LOI)
Query on AU

Download Ideal Coordinates CCD File 
C [auth A]GOLD ION
Au
ZBKIUFWVEIBQRT-UHFFFAOYSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
L [auth A],
M [auth A],
N [auth A],
O [auth A]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
CL
Query on CL

Download Ideal Coordinates CCD File 
D [auth A]
E [auth A]
F [auth A]
G [auth A]
H [auth A]
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Biologically Interesting Molecules (External Reference) 1 Unique
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.37 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.212 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.327α = 90
b = 68.327β = 90
c = 210.382γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Department of Defense (DOD, United States)United States--

Revision History  (Full details and data files)

  • Version 1.0: 2021-09-08
    Type: Initial release
  • Version 1.1: 2021-11-24
    Changes: Database references
  • Version 1.2: 2023-10-18
    Changes: Data collection, Refinement description