3D1K
R/T intermediate quaternary structure of an antarctic fish hemoglobin in an alpha(CO)-beta(pentacoordinate) state
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Hemoglobin subunit alpha-1 | polymer | 142 | 15677.2 | 1 | UniProt (P45718) Pfam (PF00042) | (Dusky notothen) | Hemoglobin alpha-1 chain, Alpha-1-globin |
| 2 | B (B) | Hemoglobin subunit beta-1/2 | polymer | 146 | 16246.4 | 1 | UniProt (P45720) Pfam (PF00042) | (Dusky notothen) | Hemoglobin beta-1/2 chain, Beta-1/2-globin |
| 3 | C (A) | ACETYL GROUP | non-polymer | 44.1 | 1 | Chemie (ACE) | |||
| 4 | D (A) | CARBON MONOXIDE | non-polymer | 28.0 | 1 | Chemie (CMO) | |||
| 5 | E, F (A, B) | PROTOPORPHYRIN IX CONTAINING FE | non-polymer | 616.5 | 2 | Chemie (HEM) | |||
| 6 | G, H (A, B) | water | water | 18.0 | 297 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 31923.7 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 1305.0 | |
| All* | Total formula weight | 33228.7 |
