Hemoglobin A
AN INSTANCE OF DEFINED SET IN HOMO SAPIENS WITH REACTOME ID (R-HSA-2168876)
Adult hemoglobin; Hemoglobin A1; Haemoglobin A
Hemoglobin A (HbA), also known as adult hemoglobin, hemoglobin A1 or α2β2, is the most common human hemoglobin tetramer, accounting for over 97% of the total red blood cell hemoglobin. Hemoglobin is an oxygen-binding protein, found in erythrocytes, which transports oxygen from the lungs to the tissues.