Definition of Sickle hemoglobin
Sickle hemoglobin: Hemoglobin S, the most common type of abnormal hemoglobin and the basis of both sickle cell trait and sickle cell anemia.
Hemoglobin S differs from normal adult hemoglobin (hemoglobin A) only by a single amino acid substitution (There is the substitution of the amino acid valine for the amino acid glutamine in the 6th position of the beta chain of globin). Recognition of this tiny change in the hemoglobin molecule marked the opening of the era of molecular medicine.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 8/28/2013
Top RxList Drug News
- FDA Approves Daclizumab (Zinbryta ) for Multiple Sclerosis
- First US Case of E coli Resistant to Last-Resort Antibiotic
- FDA Approves Afstyla for Adults, Children With Hemophilia A
- FDA Approves New Diagnostic Imaging Agent to Detect Recurrent Prostate Cancer
- Drug Targeting Blood-Brain Barrier 'Hopeful' in Stroke
Find out what women really need.