1UA3
Crystal structure of the pig pancreatic a-amylase complexed with malto-oligosaccharides
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | Alpha-amylase, pancreatic | polymer | 496 | 55489.9 | 1 | UniProt (P00690) Pfam (PF00128) Pfam (PF02806) In PDB | Sus scrofa (pig) | |
| 2 | B | alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose | branched | 342.3 | 1 | In PDB BIRD (PRD_900001) GlyTouCan (G07411ON) | alpha-maltose | ||
| 3 | C, D | alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose | branched | 504.4 | 2 | In PDB BIRD (PRD_900009) GlyTouCan (G96370VA) | alpha-maltotriose | ||
| 4 | A | CHLORIDE ION | non-polymer | 35.5 | 2 | Chemie (CL) | |||
| 5 | A | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 6 | A | beta-D-glucopyranose | non-polymer | 180.2 | 1 | Chemie (BGC) | |||
| 7 | A | 1,2-ETHANEDIOL | non-polymer | 62.1 | 6 | Chemie (EDO) | |||
| 8 | water | water | 18.0 | 759 | Chemie (HOH) |
Sequence modifications
A: 1 - 496 (UniProt: P00690)
| PDB | External Database | Details |
|---|---|---|
| Asn 123 | Ser 123 | conflict |
| Lys 243 | Gln 243 | conflict |
| Ser 310 | Ala 310 | conflict |
| Ile 323 | Val 323 | conflict |
| Gln 404 | Glu 404 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 55489.9 | |
| Branched | Number of molecules | 3 |
| Total formula weight | 1351.2 | |
| Non-Polymers* | Number of molecules | 10 |
| Total formula weight | 663.5 | |
| All* | Total formula weight | 57504.6 |
