Inglis G, Fraser RH, McTaggart S, Sheridan R, Forrest AH, Mitchell R. Monoclonal antibodies to high-incidence Kell epitopes: characterization and application in automated screening of donor samples.
Transfus Med 1994;
4:209-12. [PMID:
7820228 DOI:
10.1111/j.1365-3148.1994.tb00273.x]
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Abstract
Monoclonal antibodies, LM313/706 and LM357/828, recognize high-frequency epitopes which are absent on red cells of Ko phenotype. Both antibodies have proved suitable for automated screening of blood donor samples, with 5 ml of each culture supernatant sufficient to screen 3,000 donor samples. In a screen of 45,545 samples, LM313/706 revealed 11 samples (1:3686) of Kp(a+b-) phenotype. Thirty-seven samples of K+k- phenotype were identified in 15,235 samples screened with LM357/828 antibody (0.24%). The epitope recognized by LM313/706 was inactivated by 2 mM DTT suggesting a possible association with the Jsa/Jsb antigen structure. The expression of the k-like epitope detected by LM357/828 antibody was found to be influenced by pH change.
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