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  • Title: Factor B (BF) nomenclature statement.
    Author: Geserick G, Abbal M, Mauff G, Siemens I.
    Journal: Complement Inflamm; 1990; 7(4-6):255-60. PubMed ID: 2088663.
    Abstract:
    A common nomenclature for factor B (BF) allotypes is recommended as a result of the BF Reference Typing of the VIth Complement Genetics Workshop and Conference, Mainz, FRG, 1989. It has generally been agreed that the alphanumeric BF nomenclature according to Mauff et al. should also be used in the future for all major BF allotypes distinguishable by standard agarose gel electrophoresis (AGE). The common BF F subtypes and further described rarer subtype variants are not detectable by standard AGE. Therefore, the nomenclature had to be extended. For the subtypes of BF F an alphabetical designation with capital letters will now be used: FA and FB. The designation of the five rarer subtype variants was modified after the reference typing to FB1, FB2, SB1, SB2, and SB3. Hyposynthetic variants detected in samples with previously assumed non-expressed (BF*Q0) alleles are now designated as SQL, M1QL, and M2QL, HQL' characterizing their lower concentration.
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