instruction:
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.
question:
 First , a GATA - 1 motif was found to bind nuclear factor ( s ) , presumably the GATA - 1 factor , present in K - 562 cell extracts and in living K - 562 cells .
answer:
GATA - 1


question:
 The longest cDNA insert identified was 2 . 2 kb and encoded the entire 462 - amino acid open reading frame of rat CgA including an 18 - amino acid hydrophobic signal peptide .
answer:
rat CgA


question:
 To address this question with respect to skeletal muscle , we have examined the effects of the Providence mutation in cultured muscle cells , after adoptive gene transfer to adult mice , and in two infants homozygous for spectrin Providence .
answer:

spectrin Providence