3M0Q
Crystal Structure of the R21D mutant of alpha-spectrin SH3 domain. Crystal obtained in ammonium sulphate at pH 5.
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords | 
| 1 | A (A)  | Spectrin alpha chain, brain | polymer | 62 | 7187.1 | 1 | UniProt (P07751) Pfam (PF00018)  | Gallus gallus (chicken) | Spectrin, non-erythroid alpha chain, Fodrin alpha chain | 
| 2 | B (A)  | SULFATE ION | non-polymer | 96.1 | 1 | Chemie (SO4) | |||
| 3 | C (A)  | water | water | 18.0 | 32 | Chemie (HOH) | 
Sequence modifications
A: 2 - 62 (UniProt: P07751)
| PDB | External Database | Details | 
|---|---|---|
| Met 1 | - | expression tag | 
| Asp 21 | Arg 984 | engineered mutation | 
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 | 
| Total formula weight | 7187.1 | |
| Non-Polymers* | Number of molecules | 1 | 
| Total formula weight | 96.1 | |
| All* | Total formula weight | 7283.2 | 






