1343
Apart from two proline - rich regions ( amino acids 1 - 117 and 239 - 270 ) , p230 contains a very high frequency of heptad repeats , characteristic of alpha - helices that form dimeric coiled - coil structures . p230 also includes the sequence ESLALEELEL ( amino acids 538 - 546 ) , a motif found in the granin family of acidic proteins present in secretory granules of neuroendocrine cells .
 GENE: p230; GENE: p230; GENE: granin family
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: p230; GENE: p230; GENE: granin family