2rrt

Solution structure of Magnesium-bound form of calmodulin C-domain E104D/E140D mutant

Method: SOLUTION NMR Dmax: 45.0 Å Quality: GOOD

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

Calmodulin

Xenopus laevis

UniProt P62155

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 79–149 Fragment:C-terminal domain, UNP residues 79-149 Mutation:E28D, E64D No other associated polymer SOLUTION NMR NMR measurement conditions:pH 6.5;323 K;Ionic strength (raw mmCIF value) 0.5;Pressure ambient NMR sample composition:10 mM [U-2H] MES-1, 100 mM potassium chloride-2, 100 mM magnesium chloride-3, 90% H2O/10% D2O | 90% H2O/10% D2O Resolution not provided

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.

22 other PDB entries and 27 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CALM_XENLA
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–72; UniProt 79–149

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 2rrt

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id2rrt
Deposition date deposition_date2011-04-27
Structure title titleSolution structure of Magnesium-bound form of calmodulin C-domain E104D/E140D mutant
Keywords keywords;calmodulin, EF-hand, magnesium, Structural Genomics, PSI, Protein Structure Initiative, RIKEN Structural Genomics/Proteomics Initiative, RSGI, METAL BINDING PROTEIN, NPPSFA, National Project on Protein Structural and Functional Analyses ;; METAL BINDING PROTEIN
Experimental Method methodSOLUTION NMR

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

Radius of gyration Rg (Guinier) rg_guinier13.11
Radius of gyration Rg (electron density) rg_electron12.60
Forward intensity I(0) i0456183000.00
Molecular weight molecular_weight164400.0 kDa
Excluded volume excluded_volume198740 ų
Envelope volume envelope_volume25169 ų
Hydration-shell volume shell_volume13963 ų
Envelope diameter envelope_diameter50.6
Shell Rg shell_rg21.20
Envelope Rg envelope_rg15.86
Shape Rg shape_rg12.55
Total Rg total_rg12.93
Total atoms total_atoms22000
Residues n_residues1440
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 dmax45.0
Rg (real space) rg_real13.06
Rg uncertainty (real space) rg_real_error0.31
I(0) (real space) i0_real4.5620e+08
I(0) uncertainty (real space) i0_real_error5.0640e+06
Rg (reciprocal space) rg_reciprocal13.06
I(0) (reciprocal space) i0_reciprocal456200000.0000
Solution quality estimate total_estimate0.7820
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary15.9
Skewness Skewness skewness0.224
Kurtosis Kurtosis kurtosis-0.149
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha144400.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.724; Stabil: 0.998; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2rrta1
Class classa — All alpha proteins
Fold Fold folda.39 — EF Hand-like
Superfamily Superfamily superfamilya.39.1 — EF-hand
Family Family familya.39.1.5 — Calmodulin-like
Domain ID domain_idd2rrta2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

8. Citations (1)

9. Files and Curves (10)