9784
Rep63A ( 513 amino acids [ aa ] ) , encoded by the largest ORF , displayed strong similarity ( 40 % identity ) to the replication proteins from plasmids pAMbeta1 , pIP501 , and pSM19035 , indicating that the pAW63 replicon belongs to the pAMbeta1 family of gram - positive theta - replicating plasmids .
 Rep63A ( 513 amino acids [ aa ] )
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 Rep63A ( 513 amino acids [ aa ] )