9ipm

Hemichannel sub-structure of Cx36/GJD2 gap junction intercellular channel (FN conformation) in soybean polar lipid nanodiscs, treated with a 20-fold molar excess of carbenoxolone

Method: ELECTRON MICROSCOPY Dmax: 97.6 Å Quality: EXCELLENT

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

Gap junction delta-2 protein,Soluble cytochrome b562

Homo sapiens

UniProt P0ABE7

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Homooligomer Protein × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain A; UniProt 23–128 Chain B; UniProt 23–128 Chain C; UniProt 23–128 Chain D; UniProt 23–128 Chain E; UniProt 23–128 Chain F; UniProt 23–128 Mutation:M29W,H124I,R128L MC3 1,2-DIMYRISTOYL-RAC-GLYCERO-3-PHOSPHOCHOLINE × 12 C14 TETRADECANE × 6 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5;20mM HEPES(pH 7.5), 150mM KCl, 2mM beta-mercaptoethanol cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.56 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.

714 other PDB entries and 822 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name C562_ECOLX
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 109–214; UniProt 23–128 Author chain B; PDBConstruct 109–214; UniProt 23–128 Author chain C; PDBConstruct 109–214; UniProt 23–128 Author chain D; PDBConstruct 109–214; UniProt 23–128 Author chain E; PDBConstruct 109–214; UniProt 23–128 Author chain F; PDBConstruct 109–214; UniProt 23–128

Gap junction delta-2 protein,Soluble cytochrome b562

Homo sapiens

UniProt Q9UKL4

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Homooligomer Protein × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain A; UniProt 1–108 Chain A; UniProt 188–321 Chain B; UniProt 1–108 Chain B; UniProt 188–321 Chain C; UniProt 1–108 Chain C; UniProt 188–321 Chain D; UniProt 1–108 Chain D; UniProt 188–321 Chain E; UniProt 1–108 Chain E; UniProt 188–321 Chain F; UniProt 1–108 Chain F; UniProt 188–321 Mutation:M29W,H124I,R128L MC3 1,2-DIMYRISTOYL-RAC-GLYCERO-3-PHOSPHOCHOLINE × 12 C14 TETRADECANE × 6 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5;20mM HEPES(pH 7.5), 150mM KCl, 2mM beta-mercaptoethanol cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.56 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.

23 other PDB entries and 23 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CXD2_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–108; UniProt 1–108 Author chain A; PDBConstruct 215–348; UniProt 188–321 Author chain B; PDBConstruct 1–108; UniProt 1–108 Author chain B; PDBConstruct 215–348; UniProt 188–321 Author chain C; PDBConstruct 1–108; UniProt 1–108 Author chain C; PDBConstruct 215–348; UniProt 188–321 Author chain D; PDBConstruct 1–108; UniProt 1–108 Author chain D; PDBConstruct 215–348; UniProt 188–321 Author chain E; PDBConstruct 1–108; UniProt 1–108 Author chain E; PDBConstruct 215–348; UniProt 188–321 Author chain F; PDBConstruct 1–108; UniProt 1–108 Author chain F; PDBConstruct 215–348; UniProt 188–321

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 9ipm

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9ipm
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9ipm
Deposition date deposition_date2024-07-11
Structure title titleHemichannel sub-structure of Cx36/GJD2 gap junction intercellular channel (FN conformation) in soybean polar lipid nanodiscs, treated with a 20-fold molar excess of carbenoxolone
Keywords keywordsGap junction, Connexin36, Inhibitor, Carbenoxolone, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier33.32
Radius of gyration Rg (electron density) rg_electron32.16
Forward intensity I(0) i0200515000.00
Molecular weight molecular_weight124870.0 kDa
Excluded volume excluded_volume161400 ų
Envelope volume envelope_volume211630 ų
Hydration-shell volume shell_volume52175 ų
Envelope diameter envelope_diameter97.3
Shell Rg shell_rg41.25
Envelope Rg envelope_rg31.60
Shape Rg shape_rg32.14
Total Rg total_rg33.07
Total atoms total_atoms8760
Residues n_residues1026
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 dmax97.6
Rg (real space) rg_real32.99
Rg uncertainty (real space) rg_real_error0.66
I(0) (real space) i0_real2.0050e+08
I(0) uncertainty (real space) i0_real_error3.2440e+06
Rg (reciprocal space) rg_reciprocal33.13
I(0) (reciprocal space) i0_reciprocal200500000.0000
Solution quality estimate total_estimate0.9060
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary46.8
Skewness Skewness skewness-0.041
Kurtosis Kurtosis kurtosis-0.584
Angular range angular_range— – 0.2400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha19860000.0000
Real-space data points n_real_points49
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.949; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.970; Smooth: 0.955

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)