Blood, 1955, Vol. 10, No. 10, pp. 999-1009.
© 1955 American Society of Hematology, Inc.
Hemoglobin I: An Inherited Hemoglobin Anomaly
D. L. RUCKNAGEL 1,
E. B. PAGE 1, and
W. N. JENSEN 1
1 Department of Medicine, Veterans Administration Hospital and Duke University School of Medicine, Durham, North Carolina.
A hitherto undescribed hemoglobin anomaly has been detected in a North
Carolina Negro family. This new hemoglobin, designated type I, which has been
electrophoretically characterized, was found in combination with normal adult
A hemoglobin in 6 of 17 members of one family. In each, the ratio of normal to
abnormal hemoglobin was similar. Hematologic abnormalities were not observed
in any of the affected individuals. Ultracentrifugation sedimentation constants,
absorption spectra, solubility and oxygen carrying capacity studies showed no
differences from hemoglobin A.
It is proposed that the I hemoglobin gene is an allele of hemoglobin A and is
transmitted as a simple dominant character in a manner similar to that of sickle
cell hemoglobin. The homozygous form of I hemoglobin has not as yet been
observed.
Submitted on April 27, 1955
Accepted on June 27, 1955