5A1A
2.2 A resolution cryo-EM structure of beta-galactosidase in complex with a cell-permeant inhibitor
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 | BETA-GALACTOSIDASE | polymer | 1022 | 116370.2 | 4 | UniProt (P00722) Pfam (PF02837) Pfam (PF00703) Pfam (PF02836) Pfam (PF16353) Pfam (PF02929) In PDB | ESCHERICHIA COLI K-12 | BETA-GAL, LACTASE |
| 2 | A, B, C, D | 2-phenylethyl 1-thio-beta-D-galactopyranoside | non-polymer | 300.4 | 4 | Chemie (PTQ) | |||
| 3 | A, B, C, D | MAGNESIUM ION | non-polymer | 24.3 | 8 | Chemie (MG) | |||
| 4 | A, B, C, D | SODIUM ION | non-polymer | 23.0 | 8 | Chemie (NA) | |||
| 5 | water | water | 18.0 | 776 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 465480.8 | |
| Non-Polymers* | Number of molecules | 20 |
| Total formula weight | 1579.8 | |
| All* | Total formula weight | 467060.6 |
