4QFQ

Crystal structure of natvie Npu DnaE split intein

• PDB DOI: https://doi.org/10.2210/pdb4QFQ/pdb

• Classification: SPLICING
• Organism(s): Nostoc punctiforme PCC 73102
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2014-05-21 Released: 2015-05-27 
• Deposition Author(s): Lee, Y.Z., Kuo, J.H., Sue, S.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.04 Å
• R-Value Free: 0.287 
• R-Value Work: 0.230 
• R-Value Observed: 0.236 

Literature

Crystal structure of natvie Npu DnaE split intein

Lee, Y.Z., Kuo, J.H., Sue, S.C.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

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

Macromolecule Content

• Total Structure Weight: 17.19 kDa 
• Atom Count: 1,118 
• Modelled Residue Count: 136 
• Deposited Residue Count: 148 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA polymerase III, alpha subunit	A	111	Nostoc punctiforme PCC 73102	Mutation(s): 0  Gene Names: Npun_F4872 EC: 2.7.7.7
UniProt
Find proteins for B2J066 (Nostoc punctiforme (strain ATCC 29133 / PCC 73102)) Explore B2J066  Go to UniProtKB:  B2J066

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Nucleic acid binding, OB-fold, tRNA/helicase-type	B	37	Nostoc punctiforme PCC 73102	Mutation(s): 0  Gene Names: Npun_F5684 EC: 2.7.7.7
UniProt
Find proteins for B2J821 (Nostoc punctiforme (strain ATCC 29133 / PCC 73102)) Explore B2J821  Go to UniProtKB:  B2J821

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.04 Å
• R-Value Free: 0.287 
• R-Value Work: 0.230 
• R-Value Observed: 0.236 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 34.798	α = 90
b = 48.694	β = 90
c = 75.686	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
MOLREP	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-05-27 
Deposition Author(s): Lee, Y.Z., Kuo, J.H., Sue, S.C.

Revision History  

• Version 1.0: 2015-05-27
  Type: Initial release
  
• Version 1.1: 2023-11-08
  Changes: Data collection, Database references, Refinement description