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Biochem Biophys Res Commun. 2001 Apr 13;282(4):1067-73.

Identification and characterization of DPZF, a novel human BTB/POZ zinc finger protein sharing homology to BCL-6.

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Institute of Immunology, Second Military Medical University, 800 Xiangyin Road, Shanghai, 200433, People's Republic of China.


The C2H2 zinc finger protein family is one of the largest families of transcription factors. We identified a novel BTB/POZ zinc finger gene from human dendritic cells (DC), which encodes a 733-residue protein with a BTB/POZ domain at the N-terminal and 4 C2H2 zinc fingers at C-terminal. It was designated dendritic cell-derived BTB/POZ zinc finger (DPZF). DPZF protein shares closest homology to BCL-6, with the highest homology present in the BTB/POZ and zinc finger domains. Like BCL-6, DPZF gene is localized on chromosome 3. It is widely expressed in hematopoietic tissues, including DC, monocytes, B cells, and T cells. DPZF protein expression is detectable in lymphoid neoplasm with a molecular mass of 100 kD, especially in B lymphoma. These indicate that DPZF may be a transcription factor closely related to BCL-6, and may be involved in hematopoiesis, oncogenesis, and immune responses.

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