Hemoglobin Jackson, alpha 127 (H10) Lys replaced by Asn

Area of Science:

• Biochemistry
• Hematology
• Molecular Biology

Background:

• Hemoglobin variants are crucial in understanding genetic blood disorders.
• Electrophoresis is a standard technique for identifying hemoglobin abnormalities.

Observation:

• A fast-moving hemoglobin variant was detected using cellulose acetate electrophoresis at pH 8.4.
• The variant exhibited altered migration patterns compared to normal hemoglobin.

Findings:

• The mutation involves an amino acid substitution at position 127 of the alpha-chain, changing lysine to asparagine.
• This lysine to asparagine substitution occurs at an external residue of the alpha-globin chain.

Implications:

• The identified hemoglobin variant (Hb [Name TBD]) is a silent carrier mutation.
• This finding contributes to the growing database of hemoglobinopathies and their molecular basis.
• Understanding such variants aids in genetic counseling and population screening for hemoglobin disorders.