2C4A
Structure of Neuraminidase Subtype N9 Complexed with 30 MM Sialic Acid (NANA, NEU5AC), Crystal Soaked for 3 Hours at 291 K.
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | NEURAMINIDASE SUBTYPE N9 | polymer | 388 | 43723.8 | 1 | UniProt (P03472) Pfam (PF00064) | INFLUENZA A VIRUS (AVIAN INFLUENZA VIRUS A) | |
| 2 | B (B) | alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | branched | 1559.4 | 1 | In PDB GlyTouCan (G68668TB) | |||
| 3 | C (C) | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | branched | 424.4 | 1 | In PDB GlyTouCan (G42666HT) | |||
| 4 | D, E (A) | N-acetyl-alpha-neuraminic acid | non-polymer | 309.3 | 2 | Chemie (SIA) | |||
| 5 | F (A) | 2-acetamido-2-deoxy-beta-D-glucopyranose | non-polymer | 221.2 | 1 | Chemie (NAG) | |||
| 6 | G (A) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 7 | H (A) | water | water | 18.0 | 259 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 43723.8 | |
| Branched | Number of molecules | 2 |
| Total formula weight | 1983.8 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 879.8 | |
| All* | Total formula weight | 46587.4 |
