Recombinant rabbit monoclonal antibodies are produced using in vitro expression systems. The expression systems are developed by cloning in the specific antibody DNA sequences from immunoreactive rabbits. Then, individual clones are screened to select the best candidates for production. The advantages of using recombinant rabbit monoclonal antibodies include: better specificity and sensitivity, lot-to-lot consistency, animal origin-free formulations, and broader immunoreactivity to diverse targets due to larger rabbit immune repertoire.
RNA polymerase II is the enzyme responsible for the synthesis of mRNA and many non-coding RNAs. POLR2A encodes RNA polymerase II subunit B1 (RPB1), the largest subunit of RNA polymerase II. The C-terminal domain (CTD) of RPB1 contains tandem heptapeptide repeats with the consensus sequence YSPTSPS. Phosphorylation and other modifications within this sequence influence the recruitment of factors that regulate the transcription cycle. Recruitment of RNA processing factors to the elongation complex is coordinated by the phosphorylation of Serine-2 and Serine-5 residues within the CTD.
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Protein Aliases: DNA-directed RNA polymerase II largest subunit, RNA polymerase II 220 kd subunit; DNA-directed RNA polymerase II subunit A; DNA-directed RNA polymerase II subunit RPB1; DNA-directed RNA polymerase III largest subunit; EC 184.108.40.206; MGC75453; Pol II S2p; Polymerase (RNA II (DNA directed), large polypeptide; polymerase (RNA) II (DNA directed) polypeptide A; polymerase (RNA) II (DNA directed) polypeptide A, 220kDa; polymerase (RNA) II subunit A; POLYMERASE II; RNA; RNA POL2; RNA polymerase II 1; RNA polymerase II subunit B1; RNA-directed RNA polymerase II subunit RPB1; RP02; RPB220; RPO21; SUA8
Gene Aliases: 220kDa; hRPB220; hsRPB1; POLR2; POLR2A; POLRA; RPB1; RPBh1; Rpii215; RpIILS; RPO2; Rpo2-1; RPOL2
Molecular Function: DNA-directed RNA polymerase