3TY9 | pdb_00003ty9

Crystal Structure of C. Thermocellum PNKP Ligase Domain AMP-Adenylate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.12 Å
  • R-Value Free: 
    0.266 (Depositor), 0.252 (DCC) 
  • R-Value Work: 
    0.219 (Depositor), 0.211 (DCC) 
  • R-Value Observed: 
    0.221 (Depositor) 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history

Literature

The adenylyltransferase domain of bacterial Pnkp defines a unique RNA ligase family.

Smith, P.Wang, L.K.Nair, P.A.Shuman, S.

(2012) Proc Natl Acad Sci U S A 109: 2296-2301

  • DOI: https://doi.org/10.1073/pnas.1116827109
  • Primary Citation Related Structures: 
    3TY5, 3TY8, 3TY9

  • PubMed Abstract: 

    Pnkp is the end-healing and end-sealing component of an RNA repair system present in diverse bacteria from ten different phyla. To gain insight to the mechanism and evolution of this repair system, we determined the crystal structures of the ligase domain of Clostridium thermocellum Pnkp in three functional states along the reaction pathway: apoenzyme, ligase • ATP substrate complex, and covalent ligase-AMP intermediate. The tertiary structure is composed of a classical ligase nucleotidyltransferase module that is embellished by a unique α-helical insert module and a unique C-terminal α-helical module. Structure-guided mutational analysis identified active site residues essential for ligase adenylylation. Pnkp defines a new RNA ligase family with signature structural and functional properties.


  • Organizational Affiliation
    • Molecular Biology Program, Sloan-Kettering Institute, 1275 York Avenue, New York, NY 10065, USA.

Macromolecule Content 

  • Total Structure Weight: 183.87 kDa 
  • Atom Count: 12,300 
  • Modeled Residue Count: 1,500 
  • Deposited Residue Count: 1,572 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Polynucleotide 2',3'-cyclic phosphate phosphodiesterase / polynucleotide 5'-hydroxyl-kinase / polynucleotide 3'-phosphatase
A, B, C, D
393Acetivibrio thermocellus ATCC 27405Mutation(s): 0 
Gene Names: Cthe_2768
EC: 6.5.1.3
UniProt
Find proteins for A3DJ38 (Acetivibrio thermocellus (strain ATCC 27405 / DSM 1237 / JCM 9322 / NBRC 103400 / NCIMB 10682 / NRRL B-4536 / VPI 7372))
Explore A3DJ38 
Go to UniProtKB:  A3DJ38
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA3DJ38
Sequence Annotations
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Reference Sequence

Small Molecules

Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
AMP

Query on AMP



Download:Ideal Coordinates CCD File
E [auth A],
M [auth B],
S [auth C],
X [auth D]
ADENOSINE MONOPHOSPHATE
C10 H14 N5 O7 P
UDMBCSSLTHHNCD-KQYNXXCUSA-N
MRD

Query on MRD



Download:Ideal Coordinates CCD File
BA [auth D]
I [auth A]
J [auth A]
O [auth B]
P [auth B]
BA [auth D],
I [auth A],
J [auth A],
O [auth B],
P [auth B],
Q [auth B]
(4R)-2-METHYLPENTANE-2,4-DIOL
C6 H14 O2
SVTBMSDMJJWYQN-RXMQYKEDSA-N
MPD

Query on MPD



Download:Ideal Coordinates CCD File
AA [auth D]
F [auth A]
G [auth A]
H [auth A]
N [auth B]
AA [auth D],
F [auth A],
G [auth A],
H [auth A],
N [auth B],
T [auth C],
U [auth C],
V [auth C],
Y [auth D],
Z [auth D]
(4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
GOL

Query on GOL



Download:Ideal Coordinates CCD File
K [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
MG

Query on MG



Download:Ideal Coordinates CCD File
CA [auth D],
L [auth A],
R [auth B],
W [auth C]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.12 Å
  • R-Value Free:  0.266 (Depositor), 0.252 (DCC) 
  • R-Value Work:  0.219 (Depositor), 0.211 (DCC) 
  • R-Value Observed: 0.221 (Depositor) 
Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 95.5α = 90
b = 132.76β = 90
c = 162.77γ = 90
Software Package:
Software NamePurpose
CBASSdata collection
PHENIXmodel building
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling
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: 2012-01-25
    Type: Initial release
  • Version 1.1: 2012-02-22
    Changes: Database references
  • Version 1.2: 2012-02-29
    Changes: Database references
  • Version 1.3: 2023-09-13
    Changes: Data collection, Database references, Derived calculations, Refinement description
  • Version 1.4: 2024-10-30
    Changes: Structure summary