3316
A GT - rich sequence binding the transcription factor Sp1 is crucial for high expression of the human type VII collagen gene ( COL7A1 ) in fibroblasts and keratinocytes .
 GENE: transcription factor Sp1; GENE: human type VII collagen gene; GENE: COL7A1
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: transcription factor Sp1; GENE: human type VII collagen gene; GENE: COL7A1