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:

The candidate oncoprotein Bcl-3 is an antagonist of p50 / NF-kappa B-mediated inhibition. The candidate oncogene bcl-3 was discovered as a translocation into the immunoglobulin alpha-locus in some cases of B-cell chronic lymphocytic leukaemias. The protein Bcl-3 contains seven so-called ankyrin repeats. Similar repeat motifs are found in a number of diverse regulatory proteins but the motifs of Bcl-3 are most closely related to those found in I kappa B proteins in which the ankyrin repeat domain is thought to be directly involved in inhibition of NF-kappa B activity. No biological function has yet been described for Bcl-3, but it was noted recently that Bcl-3 interferes with DNA-binding of the p50 subunit of NF-kappa B in vitro. Here we demonstrate that Bcl-3 can aid kappa B site-dependent transcription in vivo by counteracting the inhibitory effects of p50 / NF-kappa B homodimers. Bcl-3 may therefore aid activation of select NF-kappa B-regulated genes, including those of the human immunodeficiency virus.
{"CellLine": [], "CellType": [], "DNA": ["NF - kappa B - regulated genes", "candidate oncogene bcl - 3", "immunoglobulin alpha - locus", "kappa B site"], "Protein": ["p50 / NF - kappa B", "repeat motifs", "diverse regulatory proteins", "p50 / NF - kappa B homodimers", "Bcl - 3", "ankyrin repeats", "candidate oncoprotein Bcl - 3", "I kappa B proteins", "protein Bcl - 3", "NF - kappa B", "p50 subunit", "ankyrin repeat"], "RNA": []}