1JFH
STRUCTURE OF A PANCREATIC ALPHA-AMYLASE BOUND TO A SUBSTRATE ANALOGUE AT 2.03 ANGSTROM RESOLUTION
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 | polymer | 496 | 55432.8 | 1 | UniProt (P00690) Pfam (PF00128) Pfam (PF02806) In PDB | Sus scrofa (pig) | PPA |
| 2 | B | 4-S-methyl-4-thio-alpha-D-glucopyranose-(1-4)-methyl 4-thio-alpha-D-glucopyranoside | branched | 402.5 | 1 | In PDB GlyTouCan (G59184PB) | |||
| 3 | C, D | alpha-D-glucopyranose-(1-4)-1,4-dithio-alpha-D-glucopyranose | branched | 374.4 | 2 | In PDB GlyTouCan (G11151AA) | |||
| 4 | A | CHLORIDE ION | non-polymer | 35.5 | 1 | Chemie (CL) | |||
| 5 | A | MERCURY (II) ION | non-polymer | 200.6 | 1 | Chemie (HG) | |||
| 6 | A | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 7 | water | water | 18.0 | 383 | Chemie (HOH) |
Sequence modifications
A: 2 - 496 (UniProt: P00690)
| PDB | External Database | Details |
|---|---|---|
| Val 49 | Ile 49 | conflict |
| Lys 243 | Gln 243 | conflict |
| Ser 310 | Ala 310 | conflict |
| Ile 323 | Val 323 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 55432.8 | |
| Branched | Number of molecules | 3 |
| Total formula weight | 1151.3 | |
| Non-Polymers* | Number of molecules | 3 |
| Total formula weight | 276.1 | |
| All* | Total formula weight | 56860.2 |
