1kf5

Atomic Resolution Structure of RNase A at pH 7.1

Method: X-RAY DIFFRACTION Dmax: 51.4 Å Quality: REASONABLE

1. Protein Identity and Related Structures Protein Identity & Related Structures

pancreatic ribonuclease

OrganismNot specified

UniProt P61823

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 27–150 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:LIQUID DIFFUSION;pH 7.1;298 K;2-propanol, pH 7.1, LIQUID DIFFUSION, temperature 298.0K Resolution 1.15 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

333 other PDB entries and 495 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RNAS1_BOVIN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–124; UniProt 27–150

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 1kf5

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1kf5
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1kf5
Deposition date deposition_date2001-11-19
Structure title titleAtomic Resolution Structure of RNase A at pH 7.1
Keywords keywordsRNase A, titration, pH, crystal, soaking, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier15.35
Radius of gyration Rg (electron density) rg_electron14.39
Forward intensity I(0) i04423930.00
Molecular weight molecular_weight13694.0 kDa
Excluded volume excluded_volume16587 ų
Envelope volume envelope_volume19195 ų
Hydration-shell volume shell_volume11597 ų
Envelope diameter envelope_diameter50.1
Shell Rg shell_rg19.78
Envelope Rg envelope_rg14.66
Shape Rg shape_rg14.38
Total Rg total_rg15.42
Total atoms total_atoms951
Residues n_residues124
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax51.4
Rg (real space) rg_real15.29
Rg uncertainty (real space) rg_real_error0.28
I(0) (real space) i0_real4.4240e+06
I(0) uncertainty (real space) i0_real_error5.0150e+04
Rg (reciprocal space) rg_reciprocal15.30
I(0) (reciprocal space) i0_reciprocal4424000.0000
Solution quality estimate total_estimate0.7143
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary17.6
Skewness Skewness skewness0.232
Kurtosis Kurtosis kurtosis-0.401
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha915400.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.845; Stabil: 1.000; Sysdev: 0.256; Positv: 1.000; Valcen: 0.984; Smooth: 0.993

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1kf5a_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.5 — RNase A-like
Superfamily Superfamily superfamilyd.5.1 — RNase A-like
Family Family familyd.5.1.1 — Ribonuclease A-like

CATH v4.4 (1 domains)

Domain ID domain_id1kf5A00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology130 — P-30 Protein
Homologous superfamily homologous superfamily10 — Ribonuclease A-like domain

8. Citations (2)

9. Files and Curves (10)