Microprocessor complex subunit DGCR8: Difference between revisions

Revision as of 15:43, 6 May 2015

Revision as of 08:52, 2 August 2015

Line 1:

{{PBB|geneid=54487}}

The '''DGCR8''' microprocessor complex subunit ''(DiGeorge syndrome chromosomal'' [or ''critical''] ''region 8)'' is a [[protein]] that in humans is encoded by the ''DGCR8'' [[gene]].<ref name="entrez">{{cite web | title = Entrez Gene: DGCR8 DiGeorge syndrome critical region gene 8| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=54487| accessdate = }}</ref> In other animals, particularly the common [[model organism]]s ''[[Drosophila melanogaster]]'' and ''[[Caenorhabditis elegans]]'', the protein is known as ''Pasha'' (partner of [[Drosha]]).<ref>{{vcite2cite journal | vauthors = Denli AM, Tops BB, Plasterk RH, Ketting RF, Hannon GJ | title = Processing of primary microRNAs by the Microprocessor complex | journal = Nature | volume = 432 | issue = 7014 | pages = 231-5231–5 | date = Nov 2004 | pmid = 15531879 | doi = 10.1038/nature03049 }}</ref> It is a required component of the [[RNA interference]] pathway.

== Function ==

DGCR8 is localized to the [[cell nucleus]] and is required for [[microRNA]] (miRNA) processing. It binds to [[Drosha]], an [[RNase III]] [[enzyme]], to form the ''Microprocessor complex'' that cleaves a [[primary transcript]] known as pri-miRNA to a characteristic [[stem-loop]] structure known as a pre-miRNA, which is then further processed to miRNA fragments by the enzyme [[Dicer]]. DGCR8 contains an [[RNA]]-binding ___domain and is thought to bind pri-miRNA to stabilize it for processing by Drosha.<ref>{{vcite2cite journal | vauthors = Yeom KH, Lee Y, Han J, Suh MR, Kim VN | title = Characterization of DGCR8/Pasha, the essential cofactor for Drosha in primary miRNA processing | journal = Nucleic Acids Research | volume = 34 | issue = 16 | pages = 4622–9 | year = 2006 | pmid = 16963499 | pmc = 1636349 | doi = 10.1093/nar/gkl458 }}</ref>

== References ==

Line 12:

{{refbegin | 2}}

* {{vcite2cite journal | vauthors = Simpson JC, Wellenreuther R, Poustka A, Pepperkok R, Wiemann S | title = Systematic subcellular localization of novel proteins identified by large-scale cDNA sequencing | journal = EMBO Reports | volume = 1 | issue = 3 | pages = 287–92 | year = 2001 | date = Sep 2000 | pmid = 11256614 | pmc = 1083732 | doi = 10.1093/embo-reports/kvd058 }}

* {{vcite2cite journal | vauthors = Shiohama A, Sasaki T, Noda S, Minoshima S, Shimizu N | title = Molecular cloning and expression analysis of a novel gene DGCR8 located in the DiGeorge syndrome chromosomal region | journal = Biochemical and Biophysical Research Communications | volume = 304 | issue = 1 | pages = 184–90 | date = Apr 2003 | pmid = 12705904 | doi = 10.1016/S0006-291X(03)00554-0 }}

* {{vcite2cite journal | vauthors = Gregory RI, Yan KP, Amuthan G, Chendrimada T, Doratotaj B, Cooch N, Shiekhattar R | title = The Microprocessor complex mediates the genesis of microRNAs | journal = Nature | volume = 432 | issue = 7014 | pages = 235–40 | date = Nov 2004 | pmid = 15531877 | doi = 10.1038/nature03120 }}

* {{vcite2cite journal | vauthors = Han J, Lee Y, Yeom KH, Kim YK, Jin H, Kim VN | title = The Drosha-DGCR8 complex in primary microRNA processing | journal = Genes & Development | volume = 18 | issue = 24 | pages = 3016–27 | year = 2005 | date = Dec 2004 | pmid = 15574589 | pmc = 535913 | doi = 10.1101/gad.1262504 }}

* {{vcite2cite journal | vauthors = Landthaler M, Yalcin A, Tuschl T | title = The human DiGeorge syndrome critical region gene 8 and Its D. melanogaster homolog are required for miRNA biogenesis | journal = Current Biology : CB | volume = 14 | issue = 23 | pages = 2162–7 | year = 2005 | date = Dec 2004 | pmid = 15589161 | doi = 10.1016/j.cub.2004.11.001 }}

* {{vcite2cite journal | vauthors = Han J, Lee Y, Yeom KH, Nam JW, Heo I, Rhee JK, Sohn SY, Cho Y, Zhang BT, Kim VN | title = Molecular basis for the recognition of primary microRNAs by the Drosha-DGCR8 complex | journal = Cell | volume = 125 | issue = 5 | pages = 887–901 | date = Jun 2006 | pmid = 16751099 | doi = 10.1016/j.cell.2006.03.043 }}

* {{vcite2cite journal | vauthors = Faller M, Matsunaga M, Yin S, Loo JA, Guo F | title = Heme is involved in microRNA processing | journal = Nature Structural & Molecular Biology | volume = 14 | issue = 1 | pages = 23–9 | date = Jan 2007 | pmid = 17159994 | doi = 10.1038/nsmb1182 }}

* {{vcite2cite journal | vauthors = Sohn SY, Bae WJ, Kim JJ, Yeom KH, Kim VN, Cho Y | title = Crystal structure of human DGCR8 core | journal = Nature Structural & Molecular Biology | volume = 14 | issue = 9 | pages = 847–53 | date = Sep 2007 | pmid = 17704815 | doi = 10.1038/nsmb1294 }}

{{refend}}

{{PDB Gallery|geneid=54487}}

{{gene-22-stub}}

[[Category:MicroRNA]]

[[Category:RNA interference]]

{{gene-22-stub}}