Current Protein Identity：P24071
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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 |
|---|---|---|---|---|---|---|---|
| 1OVZ Crystal structure of human FcaRI Deposited 2003-03-27 | Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain A
22–216（195 aa）
Fragment：ectodomain
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 6；296 K；PEG 8000, MES, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 296K
|
Resolution 3.00 Å R-free 0.292 |
| 1OVZ Crystal structure of human FcaRI Deposited 2003-03-27 | Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain B
22–216（195 aa）
Fragment：ectodomain
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 6；296 K；PEG 8000, MES, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 296K
|
Resolution 3.00 Å R-free 0.292 |
| 1OW0 Crystal structure of human FcaRI bound to IgA1-Fc Deposited 2003-03-27 | Assembly 2 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain C
22–216（195 aa）
Fragment：ectodomain
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 6.5；296 K；magnesium sulfate heptahydrate, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 296K
|
Resolution 3.10 Å R-free 0.284 |
| 1OW0 Crystal structure of human FcaRI bound to IgA1-Fc Deposited 2003-03-27 | Assembly 3 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain D
22–216（195 aa）
Fragment：ectodomain
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 6.5；296 K；magnesium sulfate heptahydrate, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 296K
|
Resolution 3.10 Å R-free 0.284 |
| 1OW0 Crystal structure of human FcaRI bound to IgA1-Fc Deposited 2003-03-27 | Assembly 4 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count |
Chain C
22–216（195 aa）
Fragment：ectodomain
Chain D
22–216（195 aa）
Fragment：ectodomain
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 6.5；296 K；magnesium sulfate heptahydrate, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 296K
|
Resolution 3.10 Å R-free 0.284 |
| 1UCT Crystal structure of the extracellular fragment of Fc alpha Receptor I (CD89) Deposited 2003-04-21 | Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain A
20–229（210 aa）
Fragment：RESIDUES 0-217
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 6；291 K；PEG4000, sodium citrate, ethanol glycol, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K
|
Resolution 2.10 Å R-free 0.239 |
| 8SKU Structure of human SIgA1 in complex with human CD89 (FcaR1) Deposited 2023-04-20 | Assembly 1 Other combination Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count |
Chain R
22–216（195 aa）
Chain S
22–216（195 aa）
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 7
cryo-EM vitrification conditions
Cryogen ETHANE
|
Resolution 3.20 Å |
| 9OFR CRYSTAL STRUCTURE OF THE HUMAN IGA1 FC FRAGMENT-FC-ALPHA RECEPTOR (CD89) COMPLEX Deposited 2025-04-30 | Assembly 1 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count |
Chain C
22–216（195 aa）
Chain D
22–216（195 aa）
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 7 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 8；294 K；0.15M sodium chloride
0.1M Tris-HCl pH 8.0
8% PEG 6000
|
Resolution 2.65 Å R-free 0.264 |
| 9OFR CRYSTAL STRUCTURE OF THE HUMAN IGA1 FC FRAGMENT-FC-ALPHA RECEPTOR (CD89) COMPLEX Deposited 2025-04-30 | Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count |
Chain F
22–216（195 aa）
Chain H
22–216（195 aa）
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 7 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 8；294 K；0.15M sodium chloride
0.1M Tris-HCl pH 8.0
8% PEG 6000
|
Resolution 2.65 Å R-free 0.264 |
| 9OFS Crystal structure of the human IGA2m2 FC fragment-FC-alpha receptor (CD89) complex Deposited 2025-04-30 | Assembly 1 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count |
Chain C
22–216（195 aa）
|
Not recorded | NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CL CHLORIDE ION × 2 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 8；294 K；0.15M sodium chloride
0.1M Tris-HCl pH 8.0
20% PEG 1000
|
Resolution 1.95 Å R-free 0.253 |