ISSN:
1744-313X
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
,
Medicine
Notes:
Human erythrocyte T & NN antigens were exposed to fresh sera from single human donors and CMP-[14C]sialic acid without activators in a single 24 hr incubation at 37° C. There was similar sialic acid (NAN) uptake, on the average 2.7 mol/mol T antigen subunit (mol wt 40,000), with various NN-and MM-derived T antigens and transferase sera in all different combinations. Sera from donors with the M gene but not from those lacking it incorporated NAN into NN antigen (c. 1 mol NAN/mol NN antigen subunit, mol wt 50,000).The profound difference in sialytransferase action between sera from donors with the M gene and those lacking it was substantiated by repeated incubations of NN-derived T antigen with CMP-NAN and MM donor transferase serum, which incorporated 32% more NAN than did repeated incubations of the same antigen with CMP-NAN and NN donor transferase serum. The greater NAN incorporation by sera of donors with the M gene is due to an additional transferase or a transferase-modifier substance present only in persons possessing the M gene.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1744-313X.1980.tb00716.x
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