3VD4
E. coli (lacZ) beta-galactosidase (N460D) in complex with IPTG
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 (A, B, C, D) | Beta-galactosidase | polymer | 1052 | 119744.7 | 4 | UniProt (P00722) Pfam (PF02837) Pfam (PF00703) Pfam (PF02836) Pfam (PF16353) Pfam (PF02929) | Escherichia coli | Beta-gal, Lactase |
| 2 | AB, AC, BA, BB, BC... (C, D, B, A) | MAGNESIUM ION | non-polymer | 24.3 | 9 | Chemie (MG) | |||
| 3 | CB, CC, DB, DC, EA... (C, D, B, A) | SODIUM ION | non-polymer | 23.0 | 14 | Chemie (NA) | |||
| 4 | AA, FC, GB, GC, HB... (A, D, C, B) | DIMETHYL SULFOXIDE | non-polymer | 78.1 | 68 | Chemie (DMS) | |||
| 5 | UC, XA, XB, Y (D, B, C, A) | 1-methylethyl 1-thio-beta-D-galactopyranoside | non-polymer | 238.3 | 4 | Chemie (IPT) | |||
| 6 | VC, WC, XC, YC (A, B, C, D) | water | water | 18.0 | 3300 | Chemie (HOH) |
Sequence modifications
A, B, C, D: 9 - 1023 (UniProt: P00722)
| PDB | External Database | Details |
|---|---|---|
| Met -28 | - | expression tag |
| Gly -27 | - | expression tag |
| Gly -26 | - | expression tag |
| Ser -25 | - | expression tag |
| His -24 | - | expression tag |
| His -23 | - | expression tag |
| His -22 | - | expression tag |
| His -21 | - | expression tag |
| His -20 | - | expression tag |
| His -19 | - | expression tag |
| Gly -18 | - | expression tag |
| Met -17 | - | expression tag |
| Ala -16 | - | expression tag |
| Ser -15 | - | expression tag |
| Met -14 | - | expression tag |
| Thr -13 | - | expression tag |
| Gly -12 | - | expression tag |
| Gly -11 | - | expression tag |
| Gln -10 | - | expression tag |
| Gln -9 | - | expression tag |
| Met -8 | - | expression tag |
| Gly -7 | - | expression tag |
| Arg -6 | - | expression tag |
| Asp -5 | - | expression tag |
| Leu -4 | - | expression tag |
| Tyr -3 | - | expression tag |
| Asp -2 | - | expression tag |
| Asp -1 | - | expression tag |
| Asp 0 | - | expression tag |
| Asp 1 | - | expression tag |
| Lys 2 | - | expression tag |
| Asp 3 | - | expression tag |
| Pro 4 | - | expression tag |
| Met 5 | - | expression tag |
| Ile 6 | - | expression tag |
| Asp 7 | - | expression tag |
| Pro 8 | - | expression tag |
| Asp 460 | Asn 461 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 478979.0 | |
| Non-Polymers* | Number of molecules | 95 |
| Total formula weight | 6806.9 | |
| All* | Total formula weight | 485785.8 |
