CRISPR: Perbedaan antara revisi

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'''CRISPR''' ([[Bahasa Inggris]]: '''''Clustered regularly interspaced short palindromic repeats''''', dilafalkan ''crisper''<ref name="sawyer2013">{{cite web | url = http://www.nature.com/scitable/blog/bio2.0/editing_genomes_with_the_bacterial | title = Editing Genomes with the Bacterial Immune System | last = Sawyer | first = Eric | name-list-format = vanc | date = 9 February 2013 | website = Scitable | doi = | pmid = | access-date = 6 April 2015 | publisher = Nature Publishing Group}}</ref>) adalah bagian dari [[DNA]] [[prokariota]] yang mengandung urutan dasar pendek, berulang. Dalam suatu pengulangan [[palindrom]], urutan [[nukleotida]] adalah sama dalam kedua arah. Setiap pengulangan diikuti oleh bagian pendek [[DNA pengatur jarak]] dari paparan sebelumnya oleh DNA asing (yakni suatu [[Bakterifag|virus]] atau [[plasmid]]).<ref name="pmid20125085">{{cite journal | vauthors = Marraffini LA, Sontheimer EJ | title = CRISPR interference: RNA-directed adaptive immunity in bacteria and archaea | journal = Nature Reviews Genetics | volume = 11 | issue = 3 | pages = 181–90 | date = March 2010 | pmid = 20125085 | pmc = 2928866 | doi = 10.1038/nrg2749 }}</ref> Kelompok kecil dari gen ''cas'' (''CRISPR-associated system'') terletak di samping urutan CRISPR.
'''CRISPR''' ([[Bahasa Inggris]]: '''''Clustered regularly interspaced short palindromic repeats''''', dilafalkan ''crisper''<ref name="sawyer2013">{{cite web | url = http://www.nature.com/scitable/blog/bio2.0/editing_genomes_with_the_bacterial | title = Editing Genomes with the Bacterial Immune System | last = Sawyer | first = Eric | name-list-format = vanc | date = 9 February 2013 | website = Scitable | doi = | pmid = | access-date = 6 April 2015 | publisher = Nature Publishing Group}}</ref>) adalah bagian dari [[DNA]] [[prokariota]] yang mengandung urutan dasar pendek, berulang. Dalam suatu pengulangan [[palindrom]], urutan [[nukleotida]] adalah sama dalam kedua arah. Setiap pengulangan diikuti oleh bagian pendek [[DNA pengatur jarak]] dari paparan sebelumnya oleh DNA asing (yakni suatu [[Bakterifag|virus]] atau [[plasmid]]).<ref name="pmid20125085">{{cite journal | vauthors = Marraffini LA, Sontheimer EJ | title = CRISPR interference: RNA-directed adaptive immunity in bacteria and archaea | journal = Nature Reviews Genetics | volume = 11 | issue = 3 | pages = 181–90 | date = March 2010 | pmid = 20125085 | pmc = 2928866 | doi = 10.1038/nrg2749 }}</ref> Kelompok kecil dari gen ''cas'' (''CRISPR-associated system'') terletak di samping urutan CRISPR.

CRISPR/Cas system adalah suatu [[sistem kekebalan]] prokariota yang memberikan perlawanan terhadap elemen genetik asing seperti yang hadir dalam plasmid dan [[bakterifag]].<ref>{{cite journal | vauthors = Redman M, King A, Watson C, King D | title = What is CRISPR/Cas9? | journal = Archives of Disease in Childhood. Education and Practice Edition | volume = 101 | issue = 4 | pages = 213–5 | date = August 2016 | pmid = 27059283 | doi = 10.1136/archdischild-2016-310459 }}</ref><ref name="pmid17379808">{{cite journal | vauthors = Barrangou R, Fremaux C, Deveau H, Richards M, Boyaval P, Moineau S, Romero DA, Horvath P | title = CRISPR provides acquired resistance against viruses in prokaryotes | journal = Science | volume = 315 | issue = 5819 | pages = 1709–12 | date = March 2007 | pmid = 17379808 | pmc = | doi = 10.1126/science.1138140 | bibcode = 2007Sci...315.1709B }} {{Registration required}}</ref><ref name="pmid19095942">{{cite journal | vauthors = Marraffini LA, Sontheimer EJ | title = CRISPR interference limits horizontal gene transfer in staphylococci by targeting DNA | journal = Science | volume = 322 | issue = 5909 | pages = 1843–5 | date = December 2008 | pmid = 19095942 | pmc = 2695655 | doi = 10.1126/science.1165771 | bibcode = 2008Sci...322.1843M }}</ref> that provides a form of [[acquired immunity]]. RNA harboring the spacer sequence helps Cas proteins recognize and cut exogenous DNA. Other RNA-guided Cas proteins cut foreign RNA.<ref name=Mohanraju2016>{{cite journal |vauthors=Mohanraju P, Makarova KS, Zetsche B, Zhang F, Koonin EV, van der Oost J |title=Diverse evolutionary roots and mechanistic variations of the CRISPR-Cas systems |journal=Science |volume=353 |issue=6299 |pages=aad5147 |year=2016 |pmid=27493190 |doi=10.1126/science.aad5147 }}</ref> CRISPRs are found in approximately 40% of sequenced [[bacterial]] genomes and 90% of sequenced [[archaea]].<ref name="pmid17521438">{{cite journal | vauthors = Grissa I, Vergnaud G, Pourcel C | title = The CRISPRdb database and tools to display CRISPRs and to generate dictionaries of spacers and repeats | journal = BMC Bioinformatics | volume = 8 | pages = 172 | date = May 2007 | pmid = 17521438 | pmc = 1892036 | doi = 10.1186/1471-2105-8-172 }}</ref><ref group="note">71/79 Archaea, 463/1008 Bacteria [http://crispr.u-psud.fr/crispr/CRISPRdatabase.php CRISPRdb], Date: 19.6.2010 {{webarchive |url=https://web.archive.org/web/20150516061838/http://crispr.u-psud.fr/crispr/CRISPRdatabase.php |date=May 16, 2015 }}</ref>


== Catatan ==
== Catatan ==

Revisi per 11 Maret 2017 14.14

Diagram mekanisme pertahanan antiviral prokariota CRISPR.[1]

CRISPR (Bahasa Inggris: Clustered regularly interspaced short palindromic repeats, dilafalkan crisper[2]) adalah bagian dari DNA prokariota yang mengandung urutan dasar pendek, berulang. Dalam suatu pengulangan palindrom, urutan nukleotida adalah sama dalam kedua arah. Setiap pengulangan diikuti oleh bagian pendek DNA pengatur jarak dari paparan sebelumnya oleh DNA asing (yakni suatu virus atau plasmid).[3] Kelompok kecil dari gen cas (CRISPR-associated system) terletak di samping urutan CRISPR.

CRISPR/Cas system adalah suatu sistem kekebalan prokariota yang memberikan perlawanan terhadap elemen genetik asing seperti yang hadir dalam plasmid dan bakterifag.[4][5][6] that provides a form of acquired immunity. RNA harboring the spacer sequence helps Cas proteins recognize and cut exogenous DNA. Other RNA-guided Cas proteins cut foreign RNA.[7] CRISPRs are found in approximately 40% of sequenced bacterial genomes and 90% of sequenced archaea.[8][note 1]

Catatan

  1. ^ 71/79 Archaea, 463/1008 Bacteria CRISPRdb, Date: 19.6.2010 Diarsipkan May 16, 2015, di Wayback Machine.

Referensi

  1. ^ Horvath P, Barrangou R (January 2010). "CRISPR/Cas, the immune system of bacteria and archaea". Science. 327 (5962): 167–70. Bibcode:2010Sci...327..167H. doi:10.1126/Science.1179555. PMID 20056882. 
  2. ^ Sawyer E (9 February 2013). "Editing Genomes with the Bacterial Immune System". Scitable. Nature Publishing Group. Diakses tanggal 6 April 2015. 
  3. ^ Marraffini LA, Sontheimer EJ (March 2010). "CRISPR interference: RNA-directed adaptive immunity in bacteria and archaea". Nature Reviews Genetics. 11 (3): 181–90. doi:10.1038/nrg2749. PMC 2928866alt=Dapat diakses gratis. PMID 20125085. 
  4. ^ Redman M, King A, Watson C, King D (August 2016). "What is CRISPR/Cas9?". Archives of Disease in Childhood. Education and Practice Edition. 101 (4): 213–5. doi:10.1136/archdischild-2016-310459. PMID 27059283. 
  5. ^ Barrangou R, Fremaux C, Deveau H, Richards M, Boyaval P, Moineau S, Romero DA, Horvath P (March 2007). "CRISPR provides acquired resistance against viruses in prokaryotes". Science. 315 (5819): 1709–12. Bibcode:2007Sci...315.1709B. doi:10.1126/science.1138140. PMID 17379808.  (perlu mendaftar)
  6. ^ Marraffini LA, Sontheimer EJ (December 2008). "CRISPR interference limits horizontal gene transfer in staphylococci by targeting DNA". Science. 322 (5909): 1843–5. Bibcode:2008Sci...322.1843M. doi:10.1126/science.1165771. PMC 2695655alt=Dapat diakses gratis. PMID 19095942. 
  7. ^ Mohanraju P, Makarova KS, Zetsche B, Zhang F, Koonin EV, van der Oost J (2016). "Diverse evolutionary roots and mechanistic variations of the CRISPR-Cas systems". Science. 353 (6299): aad5147. doi:10.1126/science.aad5147. PMID 27493190. 
  8. ^ Grissa I, Vergnaud G, Pourcel C (May 2007). "The CRISPRdb database and tools to display CRISPRs and to generate dictionaries of spacers and repeats". BMC Bioinformatics. 8: 172. doi:10.1186/1471-2105-8-172. PMC 1892036alt=Dapat diakses gratis. PMID 17521438. 

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