MyBioSource.com's DGCR8 Antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: ELISA, Immunocytochemistry, Immunofluorescence, and Western Blot. The DGCR8 Antibody was generated using DGCR8 as the antigen and it reacts with Human, Mouse, and Rat.
Description
Function: Component of the microprocessor complex that acts as a RNA-and heme-binding protein that is involved in the initial step of microRNA (miRNA) biogenesis. Component of the microprocessor complex that is required to process primary miRNA transcripts (pri-miRNAs) to release precursor miRNA (pre-miRNA) in the nucleus. Within the microprocessor complex, DGCR8 function as a molecular anchor necessary for the recognition of pri-miRNA at dsRNA-ssRNA junction and directs DROSHA to cleave 11 bp away form the junction to release hairpin-shaped pre-miRNAs that are subsequently cut by the cytoplasmic DICER to generate mature miRNAs (PubMed:26027739, PubMed:26748718). The heme-bound DGCR8 dimer binds pri-miRNAs as a cooperative trimer (of dimers) and is active in triggering pri-miRNA cleavage, whereas the heme-free DGCR8 monomer binds pri-miRNAs as a dimer and is much less active. Both double-stranded and single-stranded regions of a pri-miRNA are required for its binding (PubMed:15531877, PubMed:15574589, PubMed:15589161, PubMed:16751099, PubMed:16906129, PubMed:16963499, PubMed:17159994). Specifically recognizes and binds N6-methyladenosine (m6A)-containing pri-miRNAs, a modification required for pri-miRNAs processing (PubMed:25799998). Involved in the silencing of embryonic stem cell self-renewal (By similarity).
Subunit Structure: Monomer; in absence of heme. Homodimer; the association with heme promotes its dimerization (PubMed:17159994). Component of the microprocessor complex, or pri-miRNA processing protein complex, which is composed of DROSHA and DGCR8 (PubMed:15589161, PubMed:15574589, PubMed:15531877, PubMed:16751099, PubMed:19135890, PubMed:26027739, PubMed:26748718). The microprocessor complex is a heterotrimer; each of the two DROSHA RNase III domains binds one DGCR8 (via C-terminal region) (PubMed:26027739, PubMed:26748718). Interacts with ILF3, NCL and DROSHA (PubMed:17765891).
Similarity: Both DRBM domains are required for efficient binding to pri-miRNA. The region between residues 276 and 498 has an autoinhibitory function on pri-miRNA processing activity