þ-lactoglobulin expression in bovine mammary tissue
C.A. Ford, M.B. Connett, R.J. Wilkins
AgResearch, Ruakura Agriculture Centre, Private Bag 3123, Hamilton,
New Zealand
Proceedings of the New Zealand Society of Animal Production. 1993,
53: 167-170
The levels of the A and B variant forms of þ-lactoglobulin were
measured in the milk of 70 heterozygous cows. On average, 1.2 times more
A than B variant protein was found in the milk. Measurements of mRNA
levels in lactating tissue from four of these animals indicated that
approximately 60% more A allele than B allele mRNA was present. We
conclude that differences in the two alleles, either at the level of transcription
of mRNA stability, are probably responsible for the different rates of
production of the corresponding protein variants.
Keywords: NZSAPAB;
þ-lactoglobulin; bovine; alleles; gene expression.
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Last Updated 25-01-1997
