Hemoglobin Collingwood β60 (E4) VAL→ALA a New Unstable Hemoglobin

D. Williamson Molecular Pathology Laboratory, Christchurch Hospital, Christchurch, New Zealand

S. O. Brennan Molecular Pathology Laboratory, Christchurch Hospital, Christchurch, New Zealand

H. Muir Molecular Pathology Laboratory, Christchurch Hospital, Christchurch, New Zealand; Haematology Department, The Melbourne Diagnostic Group, Collingwood, Australia

R. W. Carrell Molecular Pathology Laboratory, Christchurch Hospital, Christchurch, New Zealand

Abstract

Hemoglobin Collingwood is a new unstable hemoglobin variant arising from the substitution of the internal valine at position 660 (E4) by alanine. The variant retains normal oxygen binding characteristics and is not associated with clinical symptoms, though there is evidence suggesting increased red cell turnover.

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Hemoglobin Collingwood β60 (E4) VAL→ALA a New Unstable Hemoglobin

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Hemoglobin Collingwood β60 (E4) VAL→ALA a New Unstable Hemoglobin

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