621p

THREE-DIMENSIONAL STRUCTURES OF H-RAS P21 MUTANTS: MOLECULAR BASIS FOR THEIR INABILITY TO FUNCTION AS SIGNAL SWITCH MOLECULES

Method: X-RAY DIFFRACTION Dmax: 48.3 Å Quality: EXCELLENT

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

H-RAS P21 PROTEIN

Homo sapiens

UniProt P01112

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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–166 Mutation:Q61H MG MAGNESIUM ION × 2 GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.40 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.

242 other PDB entries and 324 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RASH_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–166; UniProt 1–166

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 621p

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 621p
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2. Structure Basics 2. Structure Basics

Entry ID entry_id621p
Deposition date deposition_date1991-06-06
Structure title titleTHREE-DIMENSIONAL STRUCTURES OF H-RAS P21 MUTANTS: MOLECULAR BASIS FOR THEIR INABILITY TO FUNCTION AS SIGNAL SWITCH MOLECULES
Keywords keywordsONCOGENE PROTEIN; ONCOGENE PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier16.40
Radius of gyration Rg (electron density) rg_electron14.98
Forward intensity I(0) i07949100.00
Molecular weight molecular_weight19386.0 kDa
Excluded volume excluded_volume23755 ų
Envelope volume envelope_volume26749 ų
Hydration-shell volume shell_volume14785 ų
Envelope diameter envelope_diameter46.9
Shell Rg shell_rg21.21
Envelope Rg envelope_rg15.28
Shape Rg shape_rg14.98
Total Rg total_rg16.08
Total atoms total_atoms1356
Residues n_residues166
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 dmax48.3
Rg (real space) rg_real16.25
Rg uncertainty (real space) rg_real_error0.18
I(0) (real space) i0_real7.9490e+06
I(0) uncertainty (real space) i0_real_error8.5600e+04
Rg (reciprocal space) rg_reciprocal16.26
I(0) (reciprocal space) i0_reciprocal7949000.0000
Solution quality estimate total_estimate0.9046
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary21.7
Skewness Skewness skewness0.015
Kurtosis Kurtosis kurtosis-0.518
Angular range angular_range— – 0.4850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1472000.0000
Real-space data points n_real_points79
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.943; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.972; Smooth: 0.952

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd621pa_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.8 — G proteins

CATH v4.4 (1 domains)

Domain ID domain_id621pA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases

8. Citations (2)

9. Files and Curves (10)