2576
Monospecific antibodies , eluted from the beta - galactosidase fusion protein of either clone reacted with the U1 snRNP - specific A antigen .
 beta - galactosidase, U1 snRNP, A antigen
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 beta - galactosidase, U1 snRNP, A antigen