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:  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:  Moderate - to - severe intraductal epithelial hyperplasias were more often associated with immunoglobulin G localization that were other benign lesions

Output: immunoglobulin G


Input: Consider Input:  The mutation pattern was similar to that of Ig genes .


Output: Ig genes