4I1D

The crystal structure of an ABC transporter substrate-binding protein from Bradyrhizobium japonicum USDA 110


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural and functional characterization of solute binding proteins for aromatic compounds derived from lignin: p-Coumaric acid and related aromatic acids.

Tan, K.Chang, C.Cuff, M.Osipiuk, J.Landorf, E.Mack, J.C.Zerbs, S.Joachimiak, A.Collart, F.R.

(2013) Proteins 81: 1709-1726

  • DOI: https://doi.org/10.1002/prot.24305
  • Primary Citation of Related Structures:  
    3RPW, 3SG0, 3TX6, 3UK0, 3UKJ, 4DQD, 4EYO, 4EYQ, 4F8J, 4FB4, 4I1D

  • PubMed Abstract: 

    Lignin comprises 15-25% of plant biomass and represents a major environmental carbon source for utilization by soil microorganisms. Access to this energy resource requires the action of fungal and bacterial enzymes to break down the lignin polymer into a complex assortment of aromatic compounds that can be transported into the cells. To improve our understanding of the utilization of lignin by microorganisms, we characterized the molecular properties of solute binding proteins of ATP-binding cassette transporter proteins that interact with these compounds. A combination of functional screens and structural studies characterized the binding specificity of the solute binding proteins for aromatic compounds derived from lignin such as p-coumarate, 3-phenylpropionic acid and compounds with more complex ring substitutions. A ligand screen based on thermal stabilization identified several binding protein clusters that exhibit preferences based on the size or number of aromatic ring substituents. Multiple X-ray crystal structures of protein-ligand complexes for these clusters identified the molecular basis of the binding specificity for the lignin-derived aromatic compounds. The screens and structural data provide new functional assignments for these solute-binding proteins which can be used to infer their transport specificity. This knowledge of the functional roles and molecular binding specificity of these proteins will support the identification of the specific enzymes and regulatory proteins of peripheral pathways that funnel these compounds to central metabolic pathways and will improve the predictive power of sequence-based functional annotation methods for this family of proteins.


  • Organizational Affiliation

    Biosciences Division, Argonne National Laboratory, Lemont, Illinois, 60439; The Midwest Center for Structural Genomics, Argonne National Laboratory, Lemont, Illinois, 60439; Structural Biology Center, Argonne National Laboratory, Lemont, Illinois, 60439.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ABC transporter substrate-binding protein
A, B, C, D
324Bradyrhizobium diazoefficiens USDA 110Mutation(s): 0 
Gene Names: bll6825
UniProt
Find proteins for Q89F76 (Bradyrhizobium diazoefficiens (strain JCM 10833 / BCRC 13528 / IAM 13628 / NBRC 14792 / USDA 110))
Explore Q89F76 
Go to UniProtKB:  Q89F76
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ89F76
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
MLT
Query on MLT

Download Ideal Coordinates CCD File 
GB [auth C],
KA [auth B],
U [auth A],
XB [auth D]
D-MALATE
C4 H6 O5
BJEPYKJPYRNKOW-UWTATZPHSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
AA [auth B]
BA [auth B]
E [auth A]
F [auth A]
G [auth A]
AA [auth B],
BA [auth B],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
HB [auth D],
I [auth A],
IB [auth D],
J [auth A],
JB [auth D],
K [auth A],
KB [auth D],
L [auth A],
LA [auth C],
LB [auth D],
M [auth A],
MA [auth C],
MB [auth D],
NA [auth C],
NB [auth D],
OA [auth C],
OB [auth D],
PA [auth C],
PB [auth D],
QA [auth C],
RA [auth C],
SA [auth C],
TA [auth C],
V [auth B],
W [auth B],
X [auth B],
Y [auth B],
Z [auth B]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
GOL
Query on GOL

Download Ideal Coordinates CCD File 
CA [auth B]
DA [auth B]
EA [auth B]
FA [auth B]
GA [auth B]
CA [auth B],
DA [auth B],
EA [auth B],
FA [auth B],
GA [auth B],
N [auth A],
QB [auth D],
RB [auth D],
SB [auth D],
TB [auth D],
UA [auth C],
VA [auth C],
WA [auth C],
XA [auth C],
YA [auth C]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
ACT
Query on ACT

Download Ideal Coordinates CCD File 
AB [auth C]
BB [auth C]
CB [auth C]
DB [auth C]
EB [auth C]
AB [auth C],
BB [auth C],
CB [auth C],
DB [auth C],
EB [auth C],
FB [auth C],
HA [auth B],
IA [auth B],
JA [auth B],
O [auth A],
P [auth A],
Q [auth A],
R [auth A],
S [auth A],
T [auth A],
UB [auth D],
VB [auth D],
WB [auth D],
ZA [auth C]
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
MSE
Query on MSE
A, B, C, D
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.174 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 136.641α = 90
b = 136.641β = 90
c = 185.634γ = 120
Software Package:
Software NamePurpose
SBC-Collectdata collection
SHELXDphasing
MLPHAREphasing
DMmodel building
ARPmodel building
WARPmodel building
HKL-3000phasing
PHENIXrefinement
HKL-3000data reduction
HKL-3000data scaling
DMphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-12-05
    Type: Initial release
  • Version 1.1: 2013-05-15
    Changes: Database references
  • Version 1.2: 2013-09-25
    Changes: Database references