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.

Input: Consider Input:  By representative difference analysis we found that CRABP II is also strongly expressed in human monocyte - derived macrophages ( MAC ) but not in freshly isolated monocytes ( MO ) .

Output: CRABP II


Input: Consider Input:  We have also detected a DNA - protein interaction that may be involved in the cell - type specificity of immunoglobulin expression , and we have determined that a sequence upstream of the octamer participates in an interaction with a nuclear protein ( s ) .

Output: nuclear protein


Input: Consider Input:  The decrease in the levels of RXRalpha mRNA was found to be regulated at the post - transcriptional level and involved new protein synthesis .


Output: RXRalpha mRNA