8hlp

Cryo-EM structure of human high-voltage activated L-type calcium channel CaV1.2 (apo)

Method: ELECTRON MICROSCOPY Dmax: 187.3 Å Quality: GOOD

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

Voltage-dependent L-type calcium channel subunit alpha

Homo sapiens

UniProt A0A0A0MSA1

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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 1–2173 Not recorded Voltage-dependent calcium channel subunit alpha-2/delta-1 × 1 (P54289) Isoform 2c of Voltage-dependent L-type calcium channel subunit beta-2 × 1 (Q08289) R16 HEXADECANE × 9 3PE 1,2-Distearoyl-sn-glycerophosphoethanolamine × 2 CA CALCIUM ION × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.50 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.

2 other PDB entries and 2 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A0A0A0MSA1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–2173; UniProt 1–2173

Voltage-dependent calcium channel subunit alpha-2/delta-1

Homo sapiens

UniProt P54289

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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain F; UniProt 1–1071 Not recorded Voltage-dependent L-type calcium channel subunit alpha × 1 (A0A0A0MSA1) Isoform 2c of Voltage-dependent L-type calcium channel subunit beta-2 × 1 (Q08289) R16 HEXADECANE × 9 3PE 1,2-Distearoyl-sn-glycerophosphoethanolamine × 2 CA CALCIUM ION × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.50 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.

29 other PDB entries and 29 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CA2D1_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain F; PDBConstruct 1–1071; UniProt 1–1071

Isoform 2c of Voltage-dependent L-type calcium channel subunit beta-2

Homo sapiens

UniProt Q08289

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 × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain C; UniProt 1–632 Not recorded Voltage-dependent L-type calcium channel subunit alpha × 1 (A0A0A0MSA1) Voltage-dependent calcium channel subunit alpha-2/delta-1 × 1 (P54289) R16 HEXADECANE × 9 3PE 1,2-Distearoyl-sn-glycerophosphoethanolamine × 2 CA CALCIUM ION × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.50 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.

2 other PDB entries and 2 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CACB2_HUMAN
Isoform Q08289-4
PDB entities 3
Chains and sequence ranges Author chain C; PDBConstruct 1–632; UniProt 1–632

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 8hlp

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8hlp
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8hlp
Deposition date deposition_date2022-11-30
Structure title titleCryo-EM structure of human high-voltage activated L-type calcium channel CaV1.2 (apo)
Keywords keywordsapo state, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier53.89
Radius of gyration Rg (electron density) rg_electron53.82
Forward intensity I(0) i0927795000.00
Molecular weight molecular_weight270420.0 kDa
Excluded volume excluded_volume345380 ų
Envelope volume envelope_volume507340 ų
Hydration-shell volume shell_volume82283 ų
Envelope diameter envelope_diameter194.9
Shell Rg shell_rg53.12
Envelope Rg envelope_rg53.19
Shape Rg shape_rg53.82
Total Rg total_rg53.79
Total atoms total_atoms19067
Residues n_residues2332
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 dmax187.3
Rg (real space) rg_real54.21
Rg uncertainty (real space) rg_real_error2.23
I(0) (real space) i0_real9.2780e+08
I(0) uncertainty (real space) i0_real_error1.9940e+07
Rg (reciprocal space) rg_reciprocal53.63
I(0) (reciprocal space) i0_reciprocal927000000.0000
Solution quality estimate total_estimate0.8509
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary58.1
Skewness Skewness skewness0.529
Kurtosis Kurtosis kurtosis-0.122
Angular range angular_range— – 0.1450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha58270000.0000
Real-space data points n_real_points30
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.819; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.983; Smooth: 0.619

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

8. Citations (1)

9. Files and Curves (10)