5j7j

NMR Derived Structure of Ca2+ Calmodulin bound to Phosphorylated PSD-95

Method: SOLUTION NMR Dmax: 50.6 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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 2–149 Not recorded Disks large homolog 4 × 1 (P78352) CA CALCIUM ION × 4 SOLUTION NMR NMR measurement conditions:pH 7;318 K;Ionic strength (raw mmCIF value) 50;Pressure 1 NMR sample composition:500 uM [U-100% 13C; U-100% 15N] Calmodulin, 750 uM PSD-95 phosphorylated, 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 1–148; UniProt 2–149

Disks large homolog 4

OrganismNot specified

UniProt P78352

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 B; UniProt 1–19 Fragment:UNP residues 1-19 Non-standard monomer:Yes (specific site not provided by mmCIF) Calmodulin × 1 (P62155) CA CALCIUM ION × 4 SOLUTION NMR NMR measurement conditions:pH 7;318 K;Ionic strength (raw mmCIF value) 50;Pressure 1 NMR sample composition:500 uM [U-100% 13C; U-100% 15N] Calmodulin, 750 uM PSD-95 phosphorylated, 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.

18 other PDB entries and 39 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DLG4_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–19; UniProt 1–19

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 5j7j

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 5j7j
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2. Structure Basics 2. Structure Basics

Entry ID entry_id5j7j
Deposition date deposition_date2016-04-06
Structure title titleNMR Derived Structure of Ca2+ Calmodulin bound to Phosphorylated PSD-95
Keywords keywordsphosphorylated, calmodulin, PSD-95, Voltage-Gated Channel, METAL BINDING PROTEIN; METAL BINDING PROTEIN
Experimental Method methodSOLUTION NMR

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

Radius of gyration Rg (Guinier) rg_guinier16.32
Radius of gyration Rg (electron density) rg_electron15.64
Forward intensity I(0) i095102400.00
Molecular weight molecular_weight75087.0 kDa
Excluded volume excluded_volume91657 ų
Envelope volume envelope_volume30749 ų
Hydration-shell volume shell_volume16044 ų
Envelope diameter envelope_diameter52.2
Shell Rg shell_rg22.04
Envelope Rg envelope_rg16.13
Shape Rg shape_rg15.66
Total Rg total_rg15.90
Total atoms total_atoms10072
Residues n_residues648
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 dmax50.6
Rg (real space) rg_real16.21
Rg uncertainty (real space) rg_real_error0.24
I(0) (real space) i0_real9.5100e+07
I(0) uncertainty (real space) i0_real_error1.0480e+06
Rg (reciprocal space) rg_reciprocal16.22
I(0) (reciprocal space) i0_reciprocal95100000.0000
Solution quality estimate total_estimate0.8968
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary21.4
Skewness Skewness skewness0.119
Kurtosis Kurtosis kurtosis-0.432
Angular range angular_range— – 0.4900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha698800.0000
Real-space data points n_real_points79
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.893; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.986; Smooth: 0.989

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)