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hemoglobin
Hemoglobin
α₂β₂ tetramer (~64.5 kDa) carrying 4 haem-Fe²⁺ groups; binds O₂ cooperatively (Hill n≈2.7) via T↔R allostery. Bohr effect and 2,3-BPG tune O₂ delivery. HbS mutation causes sickle-cell disease; thalassaemias disrupt chain synthesis.
Entry Metadata
| Field | Value |
|---|---|
| ID | hemoglobin |
| Name | Hemoglobin |
| Status | draft |
| Last reviewed | 2026-06-05 |
| Atlas | 01-human |
| Scale | 03-molecular |