Hemoglobin Quin-Hai, beta 78 (EF2) Leu replaced by Arg, a new abnormal hemoglobin found in Guangdong, China

An electrophoretically slowly moving hemoglobin variant, Hb Quin-Hai was found in an 8-year-old boy and in his father, during a survey for abnormal hemoglobins in Quin-Hai County, Hainan Island, Guangdong, P.R.C. Both carriers were clinically and hematologically normal. Structural studies indicated a new variant beta 78 (EF2) Leu replaced by Arg.