The Antigen Duclos

Abstract

An antibody is described which defines a new high frequency red cell antigen, Duclos, whose expression seems to require the presence of both U and Rh fundamental antigens. Apart from the antibody maker's own red cells the only nonreactive samples were from Rhnull U impaired individuals, one example of which was shown however to yield very slight amounts of antibody through absorption-elution tests. Rhmod U weak cells gave very depressed and Rhnull U positive or Rh common U negative cells moderately depressed reactions. The proposita's red cells had an apparently normal Rh-LW condition but their U antigen was significantly decreased. No further Duclos negative individual was found by screening 8,500 blood donors in the Paris area.

Accuracy of sources and literature

“…While I do not, in any way, dispute that the RHAG blood group system was originally described in 2010 [2], I differ with Miyazaki et al in that both the Duclos antigen and the Ol a antigen were originally described in this paper. To the best of my knowledge, the Duclos antigen was first described in 1978 by Habibi et al [3], and Ol a in 1986 by Kornstad [4]. , and yet, their work is not cited at all in the paper selected as an example.…”