The Nomenclature of Properdin Factor B Allotypes

Bf and C2 polymorphism in Japanese patients with juvenile onset diabetes mellitus: existence of a variant Bf allele

“…0.03) times as far apart from S than F1 from S in our electrophoretic system. The value is similar to but still not equal to that of the F,, (0.83 k 0.07) found in African Negroid populations (Mauff et al 1976, Mauff et al 1978. Therefore, the variant allele observed in the present study was tentatively named Bf", FI standing for F Tokyo.…”

“…At least eleven alleles at the Bf locus have been described so far. These were designated according to their relative electrophoretic mobilities (Mauff et al 1978). The variant bands observed in the present study were estimated to migrate approximately 0.80 (0.80 ?…”

Genetic polymorphism of properdin factor B (BF) in a chinese population: Existence of two rare variants

“…Genetic polymorphism of human BF was first described by Alper et al (1972). At least 20 BF allotypes have been described so far (Mauff et al, 1978;Larsen et al, 1981;Davrinche et al, 1982;Tokunaga et al, 1982;Dykes et al, 1981Dykes et al, , 1983. At least 20 BF allotypes have been described so far (Mauff et al, 1978;Larsen et al, 1981;Davrinche et al, 1982;Tokunaga et al, 1982;Dykes et al, 1981Dykes et al, , 1983.…”

The Complement Components Coded in the Major Histocompatibility Complexes and their Biological Activities

“…There is also polymorphism of the C4 loci, many individuals being deficient in either C4A or C4B (15%) or having duplicated loci (2%) (Hauptmann et al 1985). In C2 there is one common and two rare alleles differing in charge (Alper 1976) and in factor B two common and many rare alleles (Mauff et al 1978), again by charge. As with C4, other techniques are revealing more variants and there is likely to be a greater number of alleles than are recognised at present.…”