2p46

Complex of a camelid single-domain vhh antibody fragment with RNASE A at 2.5A resolution: se5b-ortho-2 crystal form with five se-met sites (L4M, M34, M51, F68M, M83) in vhh scaffold.

Method: X-RAY DIFFRACTION Dmax: 126.2 Å Quality: REASONABLE

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

Ribonuclease pancreatic

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 27–150 Not recorded ANTIBODY CAB-RN05 × 1 ZN ZINC ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;295 K;HAMPTON RESEARCH INDEX SCREEN, SOLUTION #93: ZN(CH2H3O2)2, PEG 3350, pH 8.0, VAPOR DIFFUSION, temperature 295K Resolution 2.50 Å R-free 0.299
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 27–150 Not recorded ANTIBODY CAB-RN05 × 1 ZN ZINC ION × 5 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;295 K;HAMPTON RESEARCH INDEX SCREEN, SOLUTION #93: ZN(CH2H3O2)2, PEG 3350, pH 8.0, VAPOR DIFFUSION, temperature 295K Resolution 2.50 Å R-free 0.299

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 494 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 Author chain C; 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 2p46

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2p46
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2p46
Deposition date deposition_date2007-03-11
Structure title titleComplex of a camelid single-domain vhh antibody fragment with RNASE A at 2.5A resolution: se5b-ortho-2 crystal form with five se-met sites (L4M, M34, M51, F68M, M83) in vhh scaffold.
Keywords keywordsSEMET PHASING, CAMELID SINGLE-DOMAIN ANTIBODY, VHH, CAB-RN05, RNASE A, YEAST SURFACE DISPLAY, HYDROLASE-IMMUNE SYSTEM COMPLEX; HYDROLASE/IMMUNE SYSTEM
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.21
Radius of gyration Rg (electron density) rg_electron34.75
Forward intensity I(0) i055632900.00
Molecular weight molecular_weight53431.0 kDa
Excluded volume excluded_volume64143 ų
Envelope volume envelope_volume84380 ų
Hydration-shell volume shell_volume23878 ų
Envelope diameter envelope_diameter134.4
Shell Rg shell_rg34.03
Envelope Rg envelope_rg35.62
Shape Rg shape_rg34.73
Total Rg total_rg34.75
Total atoms total_atoms3653
Residues n_residues472
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 dmax126.2
Rg (real space) rg_real34.89
Rg uncertainty (real space) rg_real_error1.60
I(0) (real space) i0_real5.5630e+07
I(0) uncertainty (real space) i0_real_error1.0930e+06
Rg (reciprocal space) rg_reciprocal34.46
I(0) (reciprocal space) i0_reciprocal55610000.0000
Solution quality estimate total_estimate0.6954
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary21.9
Skewness Skewness skewness0.720
Kurtosis Kurtosis kurtosis-0.102
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3157000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.372; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.187; Smooth: 0.733

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd2p46a_
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
Domain ID domain_idd2p46b_
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd2p46c_
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
Domain ID domain_idd2p46d_
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)

CATH v4.4 (4 domains)

Domain ID domain_id2p46A00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology130 — P-30 Protein
Homologous superfamily homologous superfamily10 — Ribonuclease A-like domain
Domain ID domain_id2p46B00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id2p46C00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology130 — P-30 Protein
Homologous superfamily homologous superfamily10 — Ribonuclease A-like domain
Domain ID domain_id2p46D00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)