3DWQ
Crystal structure of the A-subunit of the AB5 toxin from E. coli with Neu5Gc-2,3Gal-1,3GlcNAc
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, E | Subtilase cytotoxin, subunit B | polymer | 126 | 14033.6 | 5 | UniProt (Q3ZTX8) In PDB | Escherichia coli | SubB |
2 | F, G, H, I | N-glycolyl-alpha-neuraminic acid-(2-3)-beta-D-galactopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-galactopyranose | branched | 690.6 | 4 | In PDB GlyTouCan (G23068ZB) | |||
3 | A, C, D, E | N-PROPANOL | non-polymer | 60.1 | 4 | Chemie (POL) | |||
4 | A, C, D, E | AZIDE ION | non-polymer | 42.0 | 4 | Chemie (AZI) | |||
5 | A, B, D, E | PENTAETHYLENE GLYCOL | non-polymer | 238.3 | 5 | Chemie (1PE) | |||
6 | water | water | 18.0 | 556 | Chemie (HOH) |
Sequence modifications
A, B, C, D, E: 1 - 118 (UniProt: Q3ZTX8)
PDB | External Database | Details |
---|---|---|
Leu 119 | - | expression tag |
Glu 120 | - | expression tag |
His 121 | - | expression tag |
His 122 | - | expression tag |
His 123 | - | expression tag |
His 124 | - | expression tag |
His 125 | - | expression tag |
His 126 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 5 |
Total formula weight | 70168.0 | |
Branched | Number of molecules | 4 |
Total formula weight | 2762.4 | |
Non-Polymers* | Number of molecules | 13 |
Total formula weight | 1599.8 | |
All* | Total formula weight | 74530.3 |