PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8076598-2 1994 This factor, termed TIF-IC, has a native molecular mass of 65 kDa, associates with Pol I, and is required both for the assembly of Sarkosyl-resistant initiation complexes and for the formation of the first internucleotide bonds. sarkosyl 131-139 polymerase (DNA directed), iota Mus musculus 83-88