1PT2
Crystal structure of levansucrase (E342A) complexed with sucrose
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Levansucrase | polymer | 447 | 50264.6 | 1 | UniProt (P05655) Pfam (PF02435) | Bacillus subtilis | Beta-D-fructofuranosyl transferase, Sucrose 6-fructosyl transferase |
| 2 | B (B) | beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose | branched | 342.3 | 1 | In PDB BIRD (PRD_900003) | sucrose | ||
| 3 | C (A) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 4 | D (A) | water | water | 18.0 | 225 | Chemie (HOH) |
Sequence modifications
A: 30 - 473 (UniProt: P05655)
| PDB | External Database | Details |
|---|---|---|
| Ala 27 | - | cloning artifact |
| Ser 28 | - | cloning artifact |
| Met 29 | - | cloning artifact |
| Ala 342 | Glu 342 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 50264.6 | |
| Branched | Number of molecules | 1 |
| Total formula weight | 342.3 | |
| Non-Polymers* | Number of molecules | 1 |
| Total formula weight | 40.1 | |
| All* | Total formula weight | 50647.0 |
