1t3l

Structural Analysis of the Voltage-Dependent Calcium Channel Beta Subunit Functional Core in Complex with Alpha1 Interaction Domain

Method: X-RAY DIFFRACTION Dmax: 95.6 Å Quality: REASONABLE

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

Dihydropyridine-sensitive L-type, calcium channel beta-2 subunit

Oryctolagus cuniculus

UniProt P54288

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 25–422 Fragment:Functional Core (Residues 25-422) Mutation:P122R Voltage-dependent L-type calcium channel alpha-1S subunit × 1 (P07293) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 9;293 K;PEG 20K, Bicine, sodium chloride, beta-mercaptoethanol, pH 9, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.20 Å R-free 0.282

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.

3 other PDB entries and 3 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CACB2_RABIT
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–337; UniProt 25–422

Voltage-dependent L-type calcium channel alpha-1S subunit

OrganismNot specified

UniProt P07293

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 357–374 Fragment:AID Dihydropyridine-sensitive L-type, calcium channel beta-2 subunit × 1 (P54288) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 9;293 K;PEG 20K, Bicine, sodium chloride, beta-mercaptoethanol, pH 9, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.20 Å R-free 0.282

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 18 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CAC1S_RABIT
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–18; UniProt 357–374

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 1t3l

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1t3l
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1t3l
Deposition date deposition_date2004-04-27
Structure title titleStructural Analysis of the Voltage-Dependent Calcium Channel Beta Subunit Functional Core in Complex with Alpha1 Interaction Domain
Keywords keywordsprotein-peptide complex, SH3 domain, Guanylate Kinase domain, transport protein; TRANSPORT PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier24.74
Radius of gyration Rg (electron density) rg_electron23.92
Forward intensity I(0) i022253300.00
Molecular weight molecular_weight36108.0 kDa
Excluded volume excluded_volume45332 ų
Envelope volume envelope_volume56843 ų
Hydration-shell volume shell_volume21016 ų
Envelope diameter envelope_diameter94.4
Shell Rg shell_rg29.43
Envelope Rg envelope_rg24.75
Shape Rg shape_rg23.89
Total Rg total_rg24.70
Total atoms total_atoms2543
Residues n_residues323
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 dmax95.6
Rg (real space) rg_real24.93
Rg uncertainty (real space) rg_real_error1.06
I(0) (real space) i0_real2.2250e+07
I(0) uncertainty (real space) i0_real_error3.5080e+05
Rg (reciprocal space) rg_reciprocal24.89
I(0) (reciprocal space) i0_reciprocal22250000.0000
Solution quality estimate total_estimate0.7079
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.3
Skewness Skewness skewness0.519
Kurtosis Kurtosis kurtosis-0.125
Angular range angular_range— – 0.3200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4567000.0000
Real-space data points n_real_points64
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.572; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.484; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd1t3la1
Class classb — All beta proteins
Fold Fold foldb.34 — SH3-like barrel
Superfamily Superfamily superfamilyb.34.2 — SH3-domain
Family Family familyb.34.2.1 — SH3-domain
Domain ID domain_idd1t3la2
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.37.1.1 — Nucleotide and nucleoside kinases
Domain ID domain_idd1t3lb_
Class classj — Peptides
Fold Fold foldj.68 — Fragments of the L-type calcium channel alpha subunit Cav.1 (dihydropyridine receptor)
Superfamily Superfamily superfamilyj.68.1 — Fragments of the L-type calcium channel alpha subunit Cav.1 (dihydropyridine receptor)
Family Family familyj.68.1.1 — Fragments of the L-type calcium channel alpha subunit Cav.1 (dihydropyridine receptor)

CATH v4.4 (2 domains)

Domain ID domain_id1t3lA01
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology30 — SH3 type barrels.
Homologous superfamily homologous superfamily40 — SH3 Domains
Domain ID domain_id1t3lA02
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)