7123
A 1 . 8 - kb cDNA clone ( designed hKID , gene symbol AQP2L ) with homology to the aquaporins was isolated from a human kidney cDNA library .
 hKID, gene symbol AQP2L, aquaporins
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 hKID, gene symbol AQP2L, aquaporins