Ontogeny of B cells expressing IgM in em
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Zettergren, Leslie D.
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Article
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2000
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John Wiley and Sons
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English
⚖ 925 KB
Affinity-purified, fluorochrome-tagged F(ab′) 2 antibody fragments specific for heavy (µ) chains of Rana pipiens IgM were prepared from hyperimmune rabbit sera. By using two-color immunofluorescent procedures we observed that (1) the first cells expressing IgM, termed pre-B cells, lack detectable qu