3FDC
Crystal Structure of Avidin
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) | Avidin | polymer | 128 | 14350.1 | 2 | UniProt (P02701) Pfam (PF01382) | Gallus gallus (bantam chickens) | |
| 2 | C, D (A, B) | iron(II) tetracyano-5-(2-Oxo-hexahydro-thieno[3,4-d]imidazol-6-yl)-pentanoic acid (4'-methyl-[2,2']bipyridinyl-4-ylmethyl)-amide | non-polymer | 585.5 | 2 | Chemie (BTF) | |||
| 3 | E, F (A, B) | water | water | 18.0 | 14 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 128 (UniProt: P02701)
| PDB | External Database | Details |
|---|---|---|
| Thr 34 | Ile 58 | variant |
| Glu 53 | Gln 77 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 28700.2 | |
| Non-Polymers* | Number of molecules | 2 |
| Total formula weight | 1170.9 | |
| All* | Total formula weight | 29871.1 |
