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.
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Question:  Sequence analysis revealed 100 % homology of all RA - derived PTEN fragments to those from normal SF as well as to the published GenBank sequence ( accession number U93051 ) .

Answer: PTEN fragments


Question:  The non - major histocompatibility complex ( MHC ) - encoded CD1 family has recently emerged as a new antigen - presenting system that is distinct from either MHC class I or class II molecules .

Answer: CD1 family


Question:  We compared retrospectively the efficacy of granulocyte colony stimulating factor ( G - CSF ) alone with chemotherapy plus G - CSF in mobilizing CD34 - positive cells in patients with malignant lymphoma .

Answer:
G - CSF