5944
A partial cDNA sequence indicated that the T lymphocyte early - activation gene ( Tea ) encodes a protein related to the dual - function ecotropic retrovirus receptor / cationic amino acid transporter ( ecoR / CAT1 ) , and RNA blots suggested highest Tea expression in T lymphocytes and liver ( MacLeod , C . L . , Finley , K . , Kakuda , D .
 T lymphocyte early - activation gene, Tea, ecotropic retrovirus receptor, cationic amino acid transporter, ecoR, CAT1, Tea
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 T lymphocyte early - activation gene, Tea, ecotropic retrovirus receptor, cationic amino acid transporter, ecoR, CAT1, Tea