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- PDB-1jvt: CRYSTAL STRUCTURE OF RIBONUCLEASE A (LIGAND-FREE FORM) -

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Basic information

Entry
Database: PDB / ID: 1jvt
TitleCRYSTAL STRUCTURE OF RIBONUCLEASE A (LIGAND-FREE FORM)
ComponentsRIBONUCLEASE APancreatic ribonuclease family
KeywordsHYDROLASE / PROTEIN DYNAMICS / PROTEIN STRUCTURE-FUNCTION
Function / homology
Function and homology information


pancreatic ribonuclease / ribonuclease A activity / RNA nuclease activity / nucleic acid binding / lyase activity / defense response to Gram-positive bacterium / extracellular region
Similarity search - Function
P-30 Protein / Ribonuclease A-like domain / Pancreatic ribonuclease / Ribonuclease A, active site / Ribonuclease A-domain / Ribonuclease A-like domain superfamily / Pancreatic ribonuclease / Pancreatic ribonuclease family signature. / Pancreatic ribonuclease / Roll / Alpha Beta
Similarity search - Domain/homology
Ribonuclease pancreatic
Similarity search - Component
Biological speciesBos taurus (cattle)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.05 Å
AuthorsVitagliano, L. / Merlino, A. / Zagari, A. / Mazzarella, L.
Citation
Journal: Proteins / Year: 2002
Title: Reversible Substrate-Induced Domain Motions in Ribonuclease A
Authors: Vitagliano, L. / Merlino, A. / Zagari, A. / Mazzarella, L.
#1: Journal: Protein Sci. / Year: 2000
Title: Productive and Non-Productive Binding to Ribonuclease A: X-Ray Structure of Two Complexes with Uridylyl(2',5')Guanosine
Authors: Vitagliano, L. / Merlino, A. / Zagari, A. / Mazzarella, L.
#2: Journal: Protein Sci. / Year: 1998
Title: Binding of a substrate analog to a domain swapping protein: X-ray structure of the complex of bovine seminal ribonuclease with uridylyl(2',5')adenosine
Authors: Vitagliano, L. / Adinolfi, S. / Riccio, A. / Sica, F. / Zagari, A. / Mazzarella, L.
History
DepositionAug 31, 2001Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 5, 2002Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 16, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: RIBONUCLEASE A
B: RIBONUCLEASE A


Theoretical massNumber of molelcules
Total (without water)27,4172
Polymers27,4172
Non-polymers00
Water1,24369
1
A: RIBONUCLEASE A


Theoretical massNumber of molelcules
Total (without water)13,7081
Polymers13,7081
Non-polymers00
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: RIBONUCLEASE A


Theoretical massNumber of molelcules
Total (without water)13,7081
Polymers13,7081
Non-polymers00
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)101.450, 33.310, 73.530
Angle α, β, γ (deg.)90.00, 90.30, 90.00
Int Tables number5
Cell settingmonoclinic
Space group name H-MC121
DetailsThe biological assembly is a monomer

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Components

#1: Protein RIBONUCLEASE A / Pancreatic ribonuclease family / E.C.3.1.27.5 / RNASE 1 / RNASE A


Mass: 13708.326 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / Organ: PANCREAS / References: UniProt: P61823, EC: 3.1.27.5
#2: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 69 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.27 Å3/Da / Density % sol: 45.7 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 5
Details: PEG 4000, sodium citrate, pH 5.00, VAPOR DIFFUSION, HANGING DROP at 298K
Crystal grow
*PLUS
pH: 5
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails
110 mg/mlprotein1drop
210 mMsodium citrate1droppH5.0
310 %(w/v)PEG40001drop
420 %(w/v)PEG40001reservoir
520 mMsodium citrate1reservoirpH5.0

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Data collection

DiffractionMean temperature: 298 K
Diffraction sourceSource: ROTATING ANODE / Type: ENRAF-NONIUS FR591 / Wavelength: 1.5418 / Wavelength: 1.5418 Å
DetectorType: MAC Science DIP-2030B / Detector: IMAGE PLATE / Date: Jun 17, 1999
RadiationMonochromator: DOUBLE MIRRORS / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.05→20 Å / Num. all: 40171 / Num. obs: 14279 / % possible obs: 92 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 2.8 % / Rmerge(I) obs: 0.075
Reflection shellResolution: 2.05→2.14 Å / % possible all: 90
Reflection
*PLUS
Lowest resolution: 20 Å / % possible obs: 92 % / Num. measured all: 40171

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Processing

Software
NameVersionClassification
DENZOdata reduction
SCALEPACKdata scaling
X-PLORmodel building
X-PLOR3.1refinement
X-PLORphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1AFU

1afu


Resolution: 2.05→8 Å / Isotropic thermal model: Isotropic / Cross valid method: THROUGHOUT / σ(F): 2 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.24 1191 10.1 %RANDOM
Rwork0.17 ---
all0.2 14279 --
obs0.18 11814 76 %-
Refinement stepCycle: LAST / Resolution: 2.05→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1894 0 0 69 1963
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.015
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg2.12
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d24.3
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
LS refinement shellResolution: 2.05→2.14 Å / Total num. of bins used: 8
RfactorNum. reflection% reflection
Rfree0.29 99 -
Rwork0.25 1434 -
obs-941 50 %
Refinement
*PLUS
Lowest resolution: 8 Å / σ(F): 2 / Rfactor Rwork: 0.18
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_deg24.3
LS refinement shell
*PLUS
Rfactor obs: 0.25

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