Cytoplasmic Ig alpha serine/threonines fine-tune Ig alpha tyrosine phosphorylation and limit bone marrow plasma cell formation.
Cytoplasmic Ig alpha serine/threonines fine-tune Ig alpha tyrosine phosphorylation and limit bone marrow plasma cell formation.
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DOI:
10.4049/jimmunol.1101143
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发表时间:
2011-09-15
期刊:
影响因子:
--
通讯作者:
Rajewsky K
中科院分区:
文献类型:
--
作者:
Patterson HC;Kraus M;Wang D;Shahsafaei A;Henderson JM;Seagal J;Otipoby KL;Thai TH;Rajewsky K
Igα serine 191 and 197 and threonine 203, which are located in proximity of the Igα immunoreceptor tyrosine based activation motif (ITAM), dampen Igα ITAM tyrosine phosphorylation. Here we show that mice with targeted mutations of Igα S191, 197 and T203 displayed elevated serum IgG2c and IgG2b concentrations and had elevated numbers of IgG2c and IgG2b secreting cells in the bone marrow. BCR induced Igα tyrosine phosphorylation was slightly increased in splenic B cells. Our results suggest that Igα serine/threonines limit formation of IgG2c and IgG2b secreting bone marrow plasma cells, possibly by fine-tuning Igα tyrosine mediated BCR signaling.
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DOI:
10.1084/jem.20060221
发表时间:
2006-07-10
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
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通讯作者:
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影响因子:
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