7638
Ume6p , which also controls the expression of early meiotic genes , represses CAR1 expression through a sequence called URS , as a function of nitrogen availability .
 Ume6p, CAR1
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 Ume6p, CAR1