1RQA
Crystallographic Analysis of the Interaction of Nitric Oxide with Quaternary-T Human Hemoglobin. Beta W73E hemoglobin exposed to NO under anaerobic conditions
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, C | Hemoglobin alpha chain | polymer | 141 | 15150.4 | 2 | UniProt (P69905) Pfam (PF00042) In PDB | Homo sapiens (human) | |
| 2 | B, D | Hemoglobin beta chain | polymer | 146 | 15865.2 | 2 | UniProt (P68871) Pfam (PF00042) In PDB | Homo sapiens (human) | |
| 3 | A, B, C, D | PROTOPORPHYRIN IX CONTAINING FE | non-polymer | 616.5 | 4 | Chemie (HEM) | |||
| 4 | A, B, C, D | NITRIC OXIDE | non-polymer | 30.0 | 4 | Chemie (NO) | |||
| 5 | water | water | 18.0 | 138 | Chemie (HOH) |
Sequence modifications
B, D: 1 - 146 (UniProt: P68871)
| PDB | External Database | Details |
|---|---|---|
| Met 1 | Val 1 | engineered mutation |
| Glu 37 | Trp 37 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 62031.0 | |
| Non-Polymers* | Number of molecules | 8 |
| Total formula weight | 2586.0 | |
| All* | Total formula weight | 64617.0 |
