2802
The germline promoters ( Ko ) located upstream of the J region gene segments of the kappa locus also contain an octamer motif (containing a single base pair mutation and referred to as the variant octamer) which has been shown previously to bind Oct-1 and Oct-2 transcription factors in vitro.
 DNA: kappa locus; DNA: germline promoters; DNA: J region gene segments; protein: Oct-2; protein: Oct-1; DNA: base pair mutation; protein: transcription factors; DNA: Ko; DNA: octamer motif
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: kappa locus, germline promoters, J region gene segments, Oct-2, Oct-1, base pair mutation, transcription factors, Ko, octamer motif 
Answer:
 DNA: kappa locus; DNA: germline promoters; DNA: J region gene segments; protein: Oct-2; protein: Oct-1; DNA: base pair mutation; protein: transcription factors; DNA: Ko; DNA: octamer motif