9600
Partial sequencing of the region downstream of ORF - Pto revealed homology to the ru / AB genes , involved in UV resistance , from plasmid pPSR1 .
 ORF - Pto, ru / AB genes
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 ORF - Pto, ru / AB genes