HBA1 (Hemoglobin Subunit Alpha 1) is a Protein Coding gene. Diseases associated with HBA1 include Hemoglobin H Disease and Alpha-Thalassemia. Among its related pathways are Folate Metabolism and Effects of Nitric Oxide. Gene Ontology (GO) annotations related to this gene include iron ion binding and oxygen binding. An important paralog of this gene is HBA2.