1VZU
Roles of active site tryptophans in substrate binding and catalysis by ALPHA-1,3 GALACTOSYLTRANSFERASE
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | N-ACETYLLACTOSAMINIDE ALPHA-1,3-GALACTOSYLTRANSFERASE | polymer | 289 | 34067.1 | 2 | UniProt (P14769) Pfam (PF03414) | BOS TAURUS (BOVINE) | GALACTOSYLTRANSFERASE, UDP-GALACTOSE, BETA-D-GALACTOSYL-1,4-N-ACETYL-D-GLUCOSAMINIDE ALPHA-1,3-GALACTOSYLTRANSFERASE |
| 2 | C, D (C, D) | beta-D-galactopyranose-(1-4)-beta-D-glucopyranose | branched | 342.3 | 2 | In PDB BIRD (PRD_900004) GlyTouCan (G84224TW) | beta-lactose | ||
| 3 | E, H (A, B) | MANGANESE (II) ION | non-polymer | 54.9 | 2 | Chemie (MN) | |||
| 4 | F, I (A, B) | URIDINE-5'-DIPHOSPHATE | non-polymer | 404.2 | 2 | Chemie (UDP) | |||
| 5 | G, J (A, B) | GLYCEROL | non-polymer | 92.1 | 2 | Chemie (GOL) | |||
| 6 | K, L (A, B) | water | water | 18.0 | 863 | Chemie (HOH) |
Sequence modifications
A, B: 80 - 368 (UniProt: P14769)
| PDB | External Database | Details |
|---|---|---|
| Tyr 314 | Trp 314 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 68134.3 | |
| Branched | Number of molecules | 2 |
| Total formula weight | 684.6 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 1102.4 | |
| All* | Total formula weight | 69921.2 |
