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 an immediate-early gene induced in adherent monocytes that encodes I kappa B-like activity. We have cloned a group of cDNAs representing mRNAs that are rapidly induced following adherence of human monocytes. One of the induced transcripts (MAD-3) encodes a protein of 317 amino acids with one domain containing five tandem repeats of the cdc10 / ankyrin motif, which is 60% similar (46% identical) to the ankyrin repeat region of the precursor of NF-kappa B / KBF1 p50. The C-terminus has a putative protein kinase C phosphorylation site. In vitro translated MAD-3 protein was found to specifically inhibit the DNA-binding activity of the p50 / p65 NF-kappa B complex but not that of the p50 / p50 KBF1 factor or of other DNA-binding proteins. The MAD-3 cDNA encodes an I kappa B-like protein that is likely to be involved in regulation of transcriptional responses to NF-kappa B, including adhesion-dependent pathways of monocyte activation.
{"CellLine": [], "CellType": ["adherent monocytes", "human monocytes"], "DNA": ["MAD - 3 cDNA", "cDNAs", "immediate - early gene"], "Protein": ["cdc10 / ankyrin motif", "five tandem repeats", "C - terminus", "ankyrin repeat region", "DNA - binding proteins", "I kappa B - like protein", "p50 / p65 NF - kappa B complex", "p50 / p50 KBF1 factor", "MAD - 3 protein", "/ KBF1", "NF - kappa B / KBF1 p50", "NF - kappa B", "protein kinase C", "protein kinase C phosphorylation site", "I kappa B"], "RNA": ["MAD - 3", "mRNAs"]}