4H2T

Crystal structure of Bradyrhizobium japonicum glycine:[carrier protein] ligase complexed with cognate carrier protein and an analogue of glycyl adenylate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.44 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 

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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Adaptation of aminoacyl-tRNA synthetase catalytic core to carrier protein aminoacylation.

Mocibob, M.Ivic, N.Luic, M.Weygand-Durasevic, I.

(2013) Structure 21: 614-626

  • DOI: https://doi.org/10.1016/j.str.2013.02.017
  • Primary Citation of Related Structures:  
    4H2S, 4H2T, 4H2U, 4H2V, 4H2W, 4H2X, 4H2Y

  • PubMed Abstract: 

    Amino acid:[carrier protein] ligases (aa:CP ligases) are recently discovered enzymes that are highly similar to class II aminoacyl-tRNA synthetases (aaRSs). However, while aaRSs aminoacylate tRNA and supply building blocks for ribosomal translation, aa:CP ligases transfer activated amino acids to the phosphopantetheine group of small carrier proteins. We have solved the crystal structure of an aa:CP ligase complexed with the carrier protein (CP). The CP prosthetic group enters the active site from a different direction than tRNA in class II aaRS complexes through an idiosyncratic tunnel. CP binds to aa:CP ligase in a fundamentally different manner compared to tRNA binding by structurally closely related aaRSs. Based on crystallographic analysis, an enzyme of altered CP specificity was designed, and the mechanism of amino acid transfer to the prosthetic group was proposed. The presented study reveals how a conserved class II aaRS catalytic core can adapt to another function through minor structural alterations.


  • Organizational Affiliation

    Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, Croatia.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Amino acid--[acyl-carrier-protein] ligase 1
A, B
346Bradyrhizobium diazoefficiens USDA 110Mutation(s): 0 
Gene Names: bll0957
EC: 6.2.1
UniProt
Find proteins for Q89VT8 (Bradyrhizobium diazoefficiens (strain JCM 10833 / BCRC 13528 / IAM 13628 / NBRC 14792 / USDA 110))
Explore Q89VT8 
Go to UniProtKB:  Q89VT8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ89VT8
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Aminoacyl carrier protein 1
C, D
110Bradyrhizobium diazoefficiens USDA 110Mutation(s): 0 
Gene Names: bsr0959
UniProt
Find proteins for Q89VT6 (Bradyrhizobium diazoefficiens (strain JCM 10833 / BCRC 13528 / IAM 13628 / NBRC 14792 / USDA 110))
Explore Q89VT6 
Go to UniProtKB:  Q89VT6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ89VT6
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
G5A
Query on G5A

Download Ideal Coordinates CCD File 
F [auth A],
H [auth B]
5'-O-(glycylsulfamoyl)adenosine
C12 H17 N7 O7 S
AMWPZASLDLLQFT-JJNLEZRASA-N
PNS
Query on PNS

Download Ideal Coordinates CCD File 
K [auth C],
L [auth D]
4'-PHOSPHOPANTETHEINE
C11 H23 N2 O7 P S
JDMUPRLRUUMCTL-VIFPVBQESA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
I [auth B],
J [auth B]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
ZN
Query on ZN

Download Ideal Coordinates CCD File 
E [auth A],
G [auth B]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.44 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.461α = 90
b = 101.218β = 90
c = 104.654γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
MxCuBEdata collection
XDSdata reduction
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-03-06
    Type: Initial release
  • Version 1.1: 2013-04-10
    Changes: Database references
  • Version 1.2: 2013-05-29
    Changes: Database references
  • Version 1.3: 2013-06-19
    Changes: Atomic model