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. 1974 Feb;13(2):340–346. doi: 10.1128/jvi.13.2.340-346.1974

Detection of a Protein of Avian Leukoviruses in Uninfected Chick Cells by Radioimmunoassay

J H Chen 1, Hidesaburo Hanafusa 1
PMCID: PMC355302  PMID: 16789140

Abstract

A radioimmunoassay (RIA) has been used to measure the quantity of protein P27 (mol wt 27,000; group specific-1 [gs-1]) of avian leukoviruses in different types of chicken embryos and tissues of adult chickens. The RIA used was 200- to 300-fold more sensitive than the complement fixation test and was able to detect as little as 0.3 ng of P27. Among six embryos tested, which are negative for gs antigen by the complement fixation test, P27 was undetectable in three embryos, but another three contained about 5 ng of P27 per mg of cell protein by RIA. The amount of P27 in gs antigen-positive cells ranged from 22 to 57 ng per mg of cell protein. P27 was found in liver, lung, ovary, feather pulp, and spleen from adult gs antigen-positive chickens. This protein was undetectable in various tissues from gs antigen-negative chickens.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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