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One 63-kDa isoform , termed I kappa B gamma-1 , which lacks 59 amino acids C-terminal to ankyrin repeat 7 , has a novel 35-amino acid C terminus encoded by an alternative reading frame of the p105 gene .
 35-amino acid C terminus, p105, 63-kDa isoform, ankyrin repeat 7, alternative reading frame, p105 gene, I kappa B gamma-1
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 35-amino acid C terminus, p105, 63-kDa isoform, ankyrin repeat 7, alternative reading frame, p105 gene, I kappa B gamma-1