1XZ4
Intersubunit Interactions Associated with Tyr42alpha Stabilize the Quaternary-T Tetramer but are not Major Quaternary Constraints in Deoxyhemoglobin: alphaY42A deoxyhemoglobin no-salt
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 | 15090.3 | 2 | UniProt (P01922) Pfam (PF00042) UniProt (by SIFTS) (P69905) In PDB | Homo sapiens (human) | |
| 2 | B, D | Hemoglobin beta chain | polymer | 146 | 15890.2 | 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 | water | water | 18.0 | 182 | Chemie (HOH) |
Sequence modifications
A, C: 1 - 141 (UniProt: P01922)
| PDB | External Database | Details |
|---|---|---|
| Met 1 | Val 1 | engineered mutation |
| Ala 42 | Tyr 42 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 61961.0 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 2465.9 | |
| All* | Total formula weight | 64427.0 |
