3DXH | pdb_00003dxh

Ribonuclease A uridine 5' diphosphate complex

• PDB DOI: https://doi.org/10.2210/pdb3DXH/pdb

• Classification: HYDROLASE
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 2008-07-24 Released: 2009-06-16 
• Deposition Author(s): Tsirkone, V.G., Dossi, K., Leonidas, D.D., Zographos, S.E., Oikonomakos, N.G., Kontou, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free: 
  0.225 (Depositor), 0.220 (DCC) 
• R-Value Work: 
  0.188 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.190 (Depositor) 

Starting Model: experimental

Literature

Inhibitor design to Ribonuclease A: The binding of two 5'phosphate uridine analogues

Tsirkone, V.G., Dossi, K., Drakou, C., Zographos, S.E., Kontou, M., Leonidas, D.D.

(2009) Acta Crystallogr Sect F Struct Biol Cryst Commun 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 29.03 kDa 
• Atom Count: 2,377 
• Modelled Residue Count: 248 
• Deposited Residue Count: 248 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ribonuclease pancreatic	A, B	124	Bos taurus	Mutation(s): 0  EC: 3.1.27.5 (PDB Primary Data), 4.6.1.18 (UniProt)
UniProt
Find proteins for P61823 (Bos taurus) Explore P61823  Go to UniProtKB:  P61823

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
UDP	C [auth A], D [auth A], E [auth B], F [auth B]	URIDINE-5'-DIPHOSPHATE C9 H14 N2 O12 P2 XCCTYIAWTASOJW-XVFCMESISA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
UDP	BindingDB:  3DXH	Ki: 6.47e+5 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free:  0.225 (Depositor), 0.220 (DCC) 
• R-Value Work:  0.188 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.190 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 100.003	α = 90
b = 32.337	β = 90.72
c = 72.299	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MAR345	data collection
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-06-16 
Deposition Author(s): Tsirkone, V.G., Dossi, K., Leonidas, D.D., Zographos, S.E., Oikonomakos, N.G., Kontou, M.

Revision History  

• Version 1.0: 2009-06-16
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-10-25
  Changes: Refinement description
• Version 1.3: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-10-30
  Changes: Structure summary