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Further studies of the plasma alpha 1 B-glycoprotein polymorphism: two new alleles and allele frequencies in Caucasians and in American blacks. 1988

R K Juneja, and L R Weitkamp, and A Stratil, and B Gahne, and S A Guttormsen
Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala.

Two new alleles (A1 B*3 and A1 B*4) of human plasma alpha 1 B-glycoprotein (alpha 1 B) were reported. alpha 1 B phenotyping was done by using either a simple method of two-dimensional (2-D) agarose gel-horizontal polyacrylamide gel electrophoresis (PAGE) followed by protein staining or by one-dimensional horizontal PAGE and immunoblotting. Seven different alpha 1 B phenotypes (1-1, 1-2, 1-3, 1-4, 2-2, 2-3 and 3-3) were observed; phenotypes 1-3 and 1-4 were differentiated from each other only by the 2-D method. The respective frequencies Af A1 B*1, A1 B*2, A1 B*3 and A1 B*4 alleles in the studied populations were estimated as follows: American Blacks (New York) 0.732, 0.204, 0.064, 0; American Whites (New York) 0.947, 0.053; Czechs (Mĕlník) 0.964, 0.034, 0, 0.002; Slovaks (Bratislava and Trencin) 0.977, 0.023, 0, 0. The population of American Blacks showed a much higher degree of alpha 1 B polymorphism (polymorphism information content = 0.37) than the Caucasian populations that have been studied.

UI MeSH Term Description Entries
D007136 Immunoglobulins Multi-subunit proteins which function in IMMUNITY. They are produced by B LYMPHOCYTES from the IMMUNOGLOBULIN GENES. They are comprised of two heavy (IMMUNOGLOBULIN HEAVY CHAINS) and two light chains (IMMUNOGLOBULIN LIGHT CHAINS) with additional ancillary polypeptide chains depending on their isoforms. The variety of isoforms include monomeric or polymeric forms, and transmembrane forms (B-CELL ANTIGEN RECEPTORS) or secreted forms (ANTIBODIES). They are divided by the amino acid sequence of their heavy chains into five classes (IMMUNOGLOBULIN A; IMMUNOGLOBULIN D; IMMUNOGLOBULIN E; IMMUNOGLOBULIN G; IMMUNOGLOBULIN M) and various subclasses. Globulins, Immune,Immune Globulin,Immune Globulins,Immunoglobulin,Globulin, Immune
D009518 New York State bounded on the north by Lake Ontario and Canada, on the east by Vermont, Massachusetts, and Connecticut, on the south by the Atlantic Ocean, New Jersey, and Pennsylvania, and on the west by Pennsylvania, Lake Erie, and Canada.
D010641 Phenotype The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment. Phenotypes
D011110 Polymorphism, Genetic The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level. Gene Polymorphism,Genetic Polymorphism,Polymorphism (Genetics),Genetic Polymorphisms,Gene Polymorphisms,Polymorphism, Gene,Polymorphisms (Genetics),Polymorphisms, Gene,Polymorphisms, Genetic
D001798 Blood Proteins Proteins that are present in blood serum, including SERUM ALBUMIN; BLOOD COAGULATION FACTORS; and many other types of proteins. Blood Protein,Plasma Protein,Plasma Proteins,Serum Protein,Serum Proteins,Protein, Blood,Protein, Plasma,Protein, Serum,Proteins, Blood,Proteins, Plasma,Proteins, Serum
D003604 Czechoslovakia Created as a republic in 1918 by Czechs and Slovaks from territories formerly part of the Austro-Hungarian Empire. The country split into the Czech Republic and Slovakia 1 January 1993.
D005787 Gene Frequency The proportion of one particular in the total of all ALLELES for one genetic locus in a breeding POPULATION. Allele Frequency,Genetic Equilibrium,Equilibrium, Genetic,Allele Frequencies,Frequencies, Allele,Frequencies, Gene,Frequency, Allele,Frequency, Gene,Gene Frequencies
D006023 Glycoproteins Conjugated protein-carbohydrate compounds including MUCINS; mucoid, and AMYLOID glycoproteins. C-Glycosylated Proteins,Glycosylated Protein,Glycosylated Proteins,N-Glycosylated Proteins,O-Glycosylated Proteins,Glycoprotein,Neoglycoproteins,Protein, Glycosylated,Proteins, C-Glycosylated,Proteins, Glycosylated,Proteins, N-Glycosylated,Proteins, O-Glycosylated
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000483 Alleles Variant forms of the same gene, occupying the same locus on homologous CHROMOSOMES, and governing the variants in production of the same gene product. Allelomorphs,Allele,Allelomorph

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