Current Protein Identity：Q19819
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Difference tags compare only the current result set; every original PDB and assembly record remains separate.
Related-Structure Differences
Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.
| PDB Entry | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Experimental Method | Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 13FR Cholesterol complex of the START domain of Caenorhabditis elegans StAR-related lipid transfer protein 3 (STARD3) Deposited 2026-05-04 | Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain A
221–447（227 aa）
|
Not recorded | GOL GLYCEROL × 1 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION；293 K；50 mM sodium cacodylate pH 6.5, 100 mM magnesium acetate, 200 mM potassium chloride, 14% w/v PEG 8000
|
Resolution 2.09 Å R-free 0.243 |
| 13FR Cholesterol complex of the START domain of Caenorhabditis elegans StAR-related lipid transfer protein 3 (STARD3) Deposited 2026-05-04 | Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain B
221–447（227 aa）
|
Not recorded | GOL GLYCEROL × 2 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION；293 K；50 mM sodium cacodylate pH 6.5, 100 mM magnesium acetate, 200 mM potassium chloride, 14% w/v PEG 8000
|
Resolution 2.09 Å R-free 0.243 |
| 13FR Cholesterol complex of the START domain of Caenorhabditis elegans StAR-related lipid transfer protein 3 (STARD3) Deposited 2026-05-04 | Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain C
221–447（227 aa）
|
Not recorded | CLR CHOLESTEROL × 1 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION；293 K；50 mM sodium cacodylate pH 6.5, 100 mM magnesium acetate, 200 mM potassium chloride, 14% w/v PEG 8000
|
Resolution 2.09 Å R-free 0.243 |
| 13FR Cholesterol complex of the START domain of Caenorhabditis elegans StAR-related lipid transfer protein 3 (STARD3) Deposited 2026-05-04 | Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain D
221–447（227 aa）
|
Not recorded | CLR CHOLESTEROL × 1 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION；293 K；50 mM sodium cacodylate pH 6.5, 100 mM magnesium acetate, 200 mM potassium chloride, 14% w/v PEG 8000
|
Resolution 2.09 Å R-free 0.243 |
| 13FT START domain of Caenorhabditis elegans StAR-related lipid transfer protein 3 (STARD3) Deposited 2026-05-04 | Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain A
221–447（227 aa）
|
Not recorded | PG4 TETRAETHYLENE GLYCOL × 1 GOL GLYCEROL × 1 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION；293 K；100 mM sodium citrate tribasic dihydrate pH 5.0, 200 mM lithium sulfate; 22% v/v PEG 200
|
Resolution 2.01 Å R-free 0.213 |
| 13FT START domain of Caenorhabditis elegans StAR-related lipid transfer protein 3 (STARD3) Deposited 2026-05-04 | Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain B
221–447（227 aa）
|
Not recorded | PG4 TETRAETHYLENE GLYCOL × 1 GOL GLYCEROL × 2 SO4 SULFATE ION × 2 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION；293 K；100 mM sodium citrate tribasic dihydrate pH 5.0, 200 mM lithium sulfate; 22% v/v PEG 200
|
Resolution 2.01 Å R-free 0.213 |