5618
In humans, there are two highly homologous genes encoding SCM-1alpha and SCM-1beta .
 SCM-1beta, homologous genes, SCM-1alpha
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 SCM-1beta, homologous genes, SCM-1alpha