5839
Members of SVA are also present in the complement C2 gene located about 20 kilobases upstream of RP1 in the HLA and in the cytochrome CYP1A1 gene .
 SVA, complement C2 gene, RP1, HLA, cytochrome CYP1A1 gene
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 SVA, complement C2 gene, RP1, HLA, cytochrome CYP1A1 gene