1RNT

RESTRAINED LEAST-SQUARES REFINEMENT OF THE CRYSTAL STRUCTURE OF THE RIBONUCLEASE T1(ASTERISK)2(PRIME)-GUANYLIC ACID COMPLEX AT 1.9 ANGSTROMS RESOLUTION

• PDB DOI: https://doi.org/10.2210/pdb1RNT/pdb

• Classification: HYDROLASE(ENDORIBONUCLEASE)
• Organism(s): Aspergillus oryzae
• Mutation(s): No 


• Deposited: 1987-07-10 Released: 1987-10-16 
• Deposition Author(s): Saenger, W., Arni, R., Heinemann, U., Tokuoka, R.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Work: 
  0.180 (DCC) 
• R-Value Observed: 
  0.191 (Depositor) 

Literature

Restrained Least-Squares Refinement of the Crystal Structure of the Ribonuclease T1(Asterisk)2(Prime)-Guanylic Acid Complex at 1.9 Angstroms Resolution

Arni, R., Heinemann, U., Maslowska, M., Tokuoka, R., Saenger, W.

(1987) Acta Crystallogr B 43: 548

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 11.46 kDa 
• Atom Count: 892 
• Modelled Residue Count: 104 
• Deposited Residue Count: 104 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RIBONUCLEASE T1 ISOZYME	A	104	Aspergillus oryzae	Mutation(s): 0  EC: 3.1.27.3 (PDB Primary Data), 4.6.1.24 (UniProt)
UniProt
Find proteins for P00651 (Aspergillus oryzae (strain ATCC 42149 / RIB 40)) Explore P00651  Go to UniProtKB:  P00651

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
2GP	B [auth A]	GUANOSINE-2'-MONOPHOSPHATE C10 H14 N5 O8 P WTIFIAZWCCBCGE-UUOKFMHZSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Work:  0.180 (DCC) 
• R-Value Observed: 0.191 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.81	α = 90
b = 50.11	β = 90
c = 40.44	γ = 90

Software Package:

Software Name	Purpose
PROLSQ	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1987-10-16 
Deposition Author(s): Saenger, W., Arni, R., Heinemann, U., Tokuoka, R.

Revision History  

• Version 1.0: 1987-10-16
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-11-29
  Changes: Derived calculations, Other
• Version 1.4: 2024-10-16
  Changes: Data collection, Database references, Derived calculations, Structure summary