Roelcke D, Weber M T
Vox Sang. 1984;47(2):122-4. doi: 10.1111/j.1423-0410.1984.tb01573.x.
The second example of anti-F1 cold agglutinins recognizing a developmentally regulated antigen like I is described. The antibody occurred transiently and simultaneously together with an anti-I cold agglutinin. Although anti-F1 and anti-I specificities are entirely different, the data on the biochemistry of F1 and I antigenic determinants provide an explanation for the simultaneous occurrence of anti-F1 and anti-I cold agglutinins in connection with a poly- or oligoclonal autoimmune response.