Recombinant Mononucleosomes H3.3 (K18M) - biotin consist of a 167 bp of 601 DNA without tags and two molecules each of histones H2A that includes amino acids 1-130 (end) (accession number NM_003512), H2B that includes amino acids 1-126 (end) (accession number NM_003518), H3.3 that includes amino acids 1-136 (end) (accession number NM_002107.6) with a point mutation Lys18Met, and H4 that includes amino acids 1-103 (end) (accession number NM_003548). All of these histones were expressed in E. coli cells. The molecular weight of histone octamer is 108 kDa. Recombinant Mononucleosomes H3.3 (K18M) - biotin are suitable for use as substrate for histone modification enzymes, or to generate chromatin in vitro. For more complete and up-to-date information, please visit the Active Motif website.