1340
The pra2 gene encodes a pea ( Pisum sativum ) small GTPase belonging to the YPT / rab family , and its expression is down - regulated by light , mediated by phytochrome .
 GENE: pra2 gene; GENE: pea ( Pisum sativum ) small GTPase; GENE: YPT; GENE: rab; GENE: phytochrome
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: pra2 gene; GENE: pea ( Pisum sativum ) small GTPase; GENE: YPT; GENE: rab; GENE: phytochrome