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Reference.org
B-cell activating factor
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<p>B-cell activating factor (BAFF) also known as tumor necrosis factor ligand superfamily member 13B and CD257 among other names, is a <a href="/facts/Protein/Jxmagu3E">protein</a> that in humans is encoded by the <i>TNFSF13B</i> <a href="/facts/Gene/e1swwPY6">gene</a>. BAFF is also known as B Lymphocyte Stimulator (BLyS) and TNF- and APOL-related leukocyte expressed ligand (TALL-1) and the Dendritic cell-derived TNF-like molecule (CD257 antigen; <a href="/facts/Cluster_of_differentiation/cLEuDQId">cluster of differentiation</a> 257). </p>