You will be shown an abstract from a biomedical research paper. Given this abstract, your task is to extract all unique entities of the following types: ["RNA", "CellLine", "Protein", "DNA", "CellType"].

Please return the output as a JSON object of the format: {"DNA" : ["TAL1", ...], "RNA": ["mRNAs", ...], "CellLine": ["T cells", ...], "CellType": ["monocytes", ...], "Protein": ["IL-2", ...]}. The keys should be entity types and values should be lists of extracted entities belonging to the corresponding type. If you cannot find entities belonging to a specific type, the value should be [].

Only output the JSON object and do not include any additional text.

Abstract:

Characterization of a new tissue-specific transcription factor binding to the simian virus 40 enhancer TC-II (NF-kappa B) element. We have biochemically and functionally characterized a new transcription factor, NP-TCII, which is present in nuclei from unstimulated T and B lymphocytes but is not found in nonhematopoietic cells. This factor has a DNA-binding specificity similar to that of NF-kappa B but is unrelated to this or other Rel proteins by functional and biochemical criteria. It can also be distinguished from other previously described lymphocyte-specific DNA-binding proteins.
{"CellLine": ["B lymphocytes", "unstimulated T", "unstimulated T and B lymphocytes"], "CellType": ["nonhematopoietic cells"], "DNA": ["simian virus 40 enhancer TC - II (NF - kappa B) element"], "Protein": ["transcription factor", "NP - TCII", "Rel proteins", "lymphocyte - specific DNA - binding proteins", "NF - kappa B"], "RNA": []}