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: Heterotrimeric guanine nucleotide - binding proteins ( G - proteins ) function as signal transducers for a variety of hormone - coupled enzyme and ion transport systems in eukaryotic cells .

Output: G - proteins

Input: Consider Input: Lastly , several restriction length polymorphisms were identified and mapped within a 1 kb region located immediately upstream from the JH cluster .

Output: JH cluster

Input: Consider Input: Functional uncoupling of the Janus kinase 3 - Stat5 pathway in malignant growth of human T cell leukemia virus type 1 - transformed human T cells .
Output: Janus kinase 3