8290
Interaction between immunoglobulin-like transcript-2/leukocyte Ig-like receptor 1 on NKL cells and HLA-B27 on target cells leads to an impairment of NKL natural cytotoxicity , which correlates with an absence of JunB , FosB , and c-Fos transcription , as well as an absence of their DNA-binding activity .
 protein: DNA-binding activity; cell type: target cells; cell type: NKL cells; protein: immunoglobulin-like transcript-2/leukocyte Ig-like receptor 1; protein: HLA-B27
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: DNA-binding activity, target cells, NKL cells, immunoglobulin-like transcript-2/leukocyte Ig-like receptor 1, HLA-B27 
Answer:
 protein: DNA-binding activity; cell type: target cells; cell type: NKL cells; protein: immunoglobulin-like transcript-2/leukocyte Ig-like receptor 1; protein: HLA-B27