1HA5
Structural features of a zinc-binding site in the superantigen streptococcal pyrogenic exotoxin A (SpeA1): implications for MHC class II recognition.
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C, D (A, B, C, D) | STREPTOCOCCAL PYOGENIC EXOTOXIN A1 | polymer | 218 | 25376.5 | 4 | UniProt (P08095) Pfam (PF01123) Pfam (PF02876) UniProt (by SIFTS) (P0DJY7) | STREPTOCOCCUS PYOGENES | |
| 2 | E, F, G, H (A, B, C, D) | ZINC ION | non-polymer | 65.4 | 4 | Chemie (ZN) | |||
| 3 | I, J, K, L (A, B, C, D) | water | water | 18.0 | 142 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 101506.1 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 261.6 | |
| All* | Total formula weight | 101767.7 |
