2XA5
Structure of substrate binding protein SiaP (A11N) in complex with Neu5Ac
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | SIALIC ACID-BINDING PERIPLASMIC PROTEIN SIAP | polymer | 312 | 35075.6 | 1 | UniProt (P44542) Pfam (PF03480) | HAEMOPHILUS INFLUENZAE | N-ACETYLNEURAMINIC-BINDING PROTEIN, NEU5AC-BINDING PROTEIN, EXTRACYTOPLASMIC SOLUTE RECEPTOR PROTEIN SIAP |
| 2 | B (A) | N-acetyl-beta-neuraminic acid | non-polymer | 309.3 | 1 | Chemie (SLB) | |||
| 3 | C (A) | water | water | 18.0 | 584 | Chemie (HOH) |
Sequence modifications
A: 1 - 306 (UniProt: P44542)
| PDB | External Database | Details |
|---|---|---|
| His 307 | - | expression tag |
| His 308 | - | expression tag |
| His 309 | - | expression tag |
| His 310 | - | expression tag |
| His 311 | - | expression tag |
| His 312 | - | expression tag |
| Asn 11 | Ala 34 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 35075.6 | |
| Non-Polymers* | Number of molecules | 1 |
| Total formula weight | 309.3 | |
| All* | Total formula weight | 35384.9 |
