Abstract:
BACKGROUND:Mild cases of hemolytic disease of the newborn were being studied when it was recognized that the propositi's red cells carried a novel antigen. STUDY DESIGN AND METHODS:Serologic and genetic studies of a new low-incidence antigen, LOCR (International Society of Blood Transfusion series number 700.53), were performed. RESULTS:The antigen is associated with altered expression of the Rh antigen c in two unrelated families and in a third proposita and with an altered expression of e in a fourth proposita. The lods for the gene controlling LOCR relative to Rh are 2.107 at theta = 0.00; that is, they fall short of the requirement for inclusion of the antigen in the Rh blood group system. LOCR is excluded from the ABO, MNS, Lutheran, Kell, Duffy, Kidd, Xg, Chido/Rodgers, Kx, and Gerbich blood group systems. Genetic evidence suggests it is not part of the Yt, Colton, or LW systems. CONCLUSION:Serologic evidence that LOCR is associated with altered expression of c or e strongly suggests that LOCR is part of the Rh blood group system. However, the genetic evidence falls short of the level required for system assignment.
journal_name
Transfusionjournal_title
Transfusionauthors
Coghlan G,McCreary J,Underwood V,Zelinski Tdoi
10.1046/j.1537-2995.1994.34694295063.xsubject
Has Abstractpub_date
1994-06-01 00:00:00pages
492-5issue
6eissn
0041-1132issn
1537-2995journal_volume
34pub_type
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