Current Protein Identity：P46939
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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 |
|---|---|---|---|---|---|---|---|
| 1BHD SECOND CALPONIN HOMOLOGY DOMAIN FROM UTROPHIN Deposited 1998-06-05 | Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain A
144–261（118 aa）
Fragment：2ND CALPONIN HOMOLOGY DOMAIN FROM ACTIN BINDING REGION
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 7.6；pH 7.6
|
Resolution 2.00 Å R-free 0.257 |
| 1BHD SECOND CALPONIN HOMOLOGY DOMAIN FROM UTROPHIN Deposited 1998-06-05 | Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain B
144–261（118 aa）
Fragment：2ND CALPONIN HOMOLOGY DOMAIN FROM ACTIN BINDING REGION
|
Not recorded | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 7.6；pH 7.6
|
Resolution 2.00 Å R-free 0.257 |
| 1QAG Actin binding region of the dystrophin homologue utrophin Deposited 1999-03-05 | Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain A
31–256（226 aa）
Fragment：RESIDUES 28-261
|
Mutation：SELENOMETHIONINE REPLACES METHIONINE Non-standard monomer：Yes (specific site not provided by mmCIF) | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 5.5；293 K；0.1M Sodium Acetate pH 4.7, 2.0 M unbuffered sodium formate., pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 3.00 Å R-free 0.258 |
| 1QAG Actin binding region of the dystrophin homologue utrophin Deposited 1999-03-05 | Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count |
Chain B
31–256（226 aa）
Fragment：RESIDUES 28-261
|
Mutation：SELENOMETHIONINE REPLACES METHIONINE Non-standard monomer：Yes (specific site not provided by mmCIF) | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 5.5；293 K；0.1M Sodium Acetate pH 4.7, 2.0 M unbuffered sodium formate., pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 3.00 Å R-free 0.258 |
| 1QAG Actin binding region of the dystrophin homologue utrophin Deposited 1999-03-05 | Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count |
Chain A
31–256（226 aa）
Fragment：RESIDUES 28-261
Chain B
31–256（226 aa）
Fragment：RESIDUES 28-261
|
Mutation：SELENOMETHIONINE REPLACES METHIONINE Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：SELENOMETHIONINE REPLACES METHIONINE Non-standard monomer：Yes (specific site not provided by mmCIF) | No recorded non-water small molecule | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 5.5；293 K；0.1M Sodium Acetate pH 4.7, 2.0 M unbuffered sodium formate., pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
|
Resolution 3.00 Å R-free 0.258 |
| 6M5G F-actin-Utrophin complex Deposited 2020-03-10 | Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count |
Chain F
1–261（261 aa）
Fragment：calponin domain 1, calponin domain 2
Chain G
1–261（261 aa）
Fragment：calponin domain 1, calponin domain 2
Chain H
1–261（261 aa）
Fragment：calponin domain 1, calponin domain 2
|
Not recorded | MG MAGNESIUM ION × 5 ADP ADENOSINE-5'-DIPHOSPHATE × 5 | ELECTRON MICROSCOPY |
cryo-EM buffer
pH 8
cryo-EM vitrification conditions
Cryogen ETHANE；blot for 3 seconds
|
Resolution 3.60 Å |