Current Protein Identity：Q13185
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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 |
|---|---|---|---|---|---|---|---|
| 2L11 Solution NMR structure of the Cbx3 in complex with H3K9me3 peptide Deposited 2010-07-22 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
29–81（53 aa）
Fragment：UNP Residues 29-81
|
Not recorded | No recorded non-water small molecule | SOLUTION NMR |
NMR measurement conditions
pH 7.4；298 K；Ionic strength (raw mmCIF value) 200；Pressure ambient
NMR sample composition
20 mM sodium phosphate, 200 mM sodium chloride, 2 mM DTT, 1 mM TCEP, 0.5 mM PMSF, 1 mM Benzamidine, 90% H2O/10% D2O | 90% H2O/10% D2O
|
Resolution not provided |
| 3DM1 Crystal structure of the complex of human chromobox homolog 3 (CBX3) with peptide Deposited 2008-06-30 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
29–86（58 aa）
Fragment：Chromo 1 domain: Residues 29-86
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；293 K；1.5 microliter of the protein solution mixed with with 1.5 microliter of the reservoir solution containing 40% PEG 550 MME, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 2.40 Å R-free 0.267 |
| 3DM1 Crystal structure of the complex of human chromobox homolog 3 (CBX3) with peptide Deposited 2008-06-30 | Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain C
29–86（58 aa）
Fragment：Chromo 1 domain: Residues 29-86
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；293 K；1.5 microliter of the protein solution mixed with with 1.5 microliter of the reservoir solution containing 40% PEG 550 MME, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 2.40 Å R-free 0.267 |
| 3DM1 Crystal structure of the complex of human chromobox homolog 3 (CBX3) with peptide Deposited 2008-06-30 | Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain E
29–86（58 aa）
Fragment：Chromo 1 domain: Residues 29-86
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；293 K；1.5 microliter of the protein solution mixed with with 1.5 microliter of the reservoir solution containing 40% PEG 550 MME, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 2.40 Å R-free 0.267 |
| 3DM1 Crystal structure of the complex of human chromobox homolog 3 (CBX3) with peptide Deposited 2008-06-30 | Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain G
29–86（58 aa）
Fragment：Chromo 1 domain: Residues 29-86
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；293 K；1.5 microliter of the protein solution mixed with with 1.5 microliter of the reservoir solution containing 40% PEG 550 MME, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 2.40 Å R-free 0.267 |
| 3DM1 Crystal structure of the complex of human chromobox homolog 3 (CBX3) with peptide Deposited 2008-06-30 | Assembly 5 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count |
Chain A
29–86（58 aa）
Fragment：Chromo 1 domain: Residues 29-86
Chain C
29–86（58 aa）
Fragment：Chromo 1 domain: Residues 29-86
Chain E
29–86（58 aa）
Fragment：Chromo 1 domain: Residues 29-86
Chain G
29–86（58 aa）
Fragment：Chromo 1 domain: Residues 29-86
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；293 K；1.5 microliter of the protein solution mixed with with 1.5 microliter of the reservoir solution containing 40% PEG 550 MME, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 2.40 Å R-free 0.267 |
| 3KUP Crystal Structure of the CBX3 Chromo Shadow Domain Deposited 2009-11-27 | Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
110–173（64 aa）
Fragment：Chromo Shadow Domain (UNP residues 110-173)
Chain B
110–173（64 aa）
Fragment：Chromo Shadow Domain (UNP residues 110-173)
|
Not recorded | UNX UNKNOWN LIGAND × 2 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；30% PEG1500, 0.2M sodium chloride, 0.1M HEPES, 5% MPD, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 1.77 Å R-free 0.261 |
| 3KUP Crystal Structure of the CBX3 Chromo Shadow Domain Deposited 2009-11-27 | Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain C
110–173（64 aa）
Fragment：Chromo Shadow Domain (UNP residues 110-173)
Chain D
110–173（64 aa）
Fragment：Chromo Shadow Domain (UNP residues 110-173)
|
Not recorded | UNX UNKNOWN LIGAND × 4 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；30% PEG1500, 0.2M sodium chloride, 0.1M HEPES, 5% MPD, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
|
Resolution 1.77 Å R-free 0.261 |
| 3TZD Crystal structure of the complex of Human Chromobox Homolog 3 (CBX3) Deposited 2011-09-27 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
29–81（53 aa）
Fragment：UNP residues 29-81
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP；pH 6.5；300 K；peg, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 300K
|
Resolution 1.81 Å R-free 0.231 |
| 5T1I CBX3 chromo shadow domain in complex with histone H3 peptide Deposited 2016-08-19 | Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count |
Chain A
110–176（67 aa）
Fragment：unp residues 110-176
Chain B
110–176（67 aa）
Fragment：unp residues 110-176
|
Not recorded | UNX UNKNOWN LIGAND × 12 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP；pH 7.5；293 K；25% PEG 3350, 0.2 M sodium chloride, 0.1 M Hepes, 5% Ethylene Glycol
|
Resolution 1.60 Å R-free 0.239 |
| 6HW2 The Crystal Structure of CaV beta4c in complex with HP1gamma chromo shadow domains Deposited 2018-10-11 | Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count |
Chain B
109–183（75 aa）
Chain C
109–183（75 aa）
|
Not recorded | CA CALCIUM ION × 4 GOL GLYCEROL × 1 BME BETA-MERCAPTOETHANOL × 5 ACT ACETATE ION × 1 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 5；292 K；0.15 M NaCl, 12-14% PEG 3350 , pH 5.0, calcium acetate, VAPOR DIFFUSION, temperature 292K
|
Resolution 1.94 Å R-free 0.209 |
| 9OSC Crystal structure of HP1gamma chromoshadow domain in complex with KAP1 peptide Deposited 2025-05-23 | Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
110–176（67 aa）
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, SITTING DROP；291 K；1.0 M LiCl2, 0.1 M citrate buffer pH 4.0, and 20% PEG6000
|
Resolution 1.77 Å R-free 0.236 |