In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

Q:  Translocation of antigenic peptides into the cytosol of antigen presenting cells facilitates proteosomal processing and loading into Class I molecules for MHC presentation on the cell surface .

A: Class I molecules
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Q:  Friend of GATA ( FOG ) proteins regulate GATA factor - activated gene transcription .

A: GATA factor
****
Q:  This model of acute monarticular arthritis is particularly suitable for further investigations into cell - mediated immunity in arthritis and the role of IL - 1 .

A:
IL - 1
****