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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Genetic polymorphism of alpha 2HS-glycoprotein.

A genetic polymorphism of the human serum glycoprotein, alpha 2HS-glycoprotein, can be recognized using isoelectric focusing in polyacrylamide, followed by silver-stain immunofixation. In a North American Caucasian population, two common alleles and one rare allele have been recognized, with frequencies as follows: AHSG*1: .6419, AHSG*2: .3535, and AHSG*3: .0046; polymorphism information content (PIC): .36. A black population from various islands of the Caribbean has the two most common alleles, plus a variant (B) not found in the white population. Allele frequencies in the blacks were: AHSG*1: .6901, AHSG*2: .2606, AHSG*B: .0493; PIC: .396. Family studies confirmed the allele designations. Alleles in both populations were in Hardy-Weinberg equilibrium. This polymorphism will be useful as a marker on chromosome 3q and for forensic studies. The serum concentration associated with AHSG*1 may be somewhat greater than that associated with AHSG*2. Differences between the allele products remained after removal of sialic acid from the glycoprotein with neuraminidase. The silver-stain immunofixation technique used for this polymorphism has wide application for the study of polymorphisms where the protein is present in low concentration or where only low titer antiserum is available.[1]

References

  1. Genetic polymorphism of alpha 2HS-glycoprotein. Cox, D.W., Andrews, B.J., Wills, D.E. Am. J. Hum. Genet. (1986) [Pubmed]
 
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