Cas5d processes pre-crRNA and is a member of a larger family of CRISPR RNA endonucleases

Erin L. Garside, Matthew J. Schellenberg, Emily M. Gesner, Jeffrey B. Bonanno, J. Michael Sauder, Stephen K. Burley, Steven C. Almo, Garima Mehta, Andrew M. Macmillan

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Small RNAs derived from clustered, regularly interspaced, short palindromic repeat (CRISPR) loci in bacteria and archaea are involved in an adaptable and heritable gene-silencing pathway. Resistance to invasive genetic material is conferred by the incorporation of short DNA sequences derived from this material into the genome as CRISPR spacer elements separated by short repeat sequences. Processing of long primary transcripts (pre-crRNAs) containing these repeats by a CRISPR-associated (Cas) RNA endonuclease generates the mature effector RNAs that target foreign nucleic acid for degradation. Here we describe functional studies of a Cas5d ortholog, and high-resolution structural studies of a second Cas5d family member, demonstrating that Cas5d is a sequence-specific RNA endonuclease that cleaves CRISPR repeats and is thus responsible for processing of precrRNA. Analysis of the structural homology of Cas5d with the previously characterized Cse3 protein allows us to model the interaction of Cas5d with its RNA substrate and conclude that it is a member of a larger family of CRISPR RNA endonucleases.

Original languageEnglish (US)
Pages (from-to)2020-2028
Number of pages9
JournalRNA
Volume18
Issue number11
DOIs
StatePublished - Nov 2012

Fingerprint

Clustered Regularly Interspaced Short Palindromic Repeats
Endonucleases
RNA
Archaea
Gene Silencing
Nucleic Acids
Genome
Bacteria
Genes
Proteins

Keywords

  • CRISPR
  • RNA endonuclease
  • RNA processing

ASJC Scopus subject areas

  • Molecular Biology

Cite this

Garside, E. L., Schellenberg, M. J., Gesner, E. M., Bonanno, J. B., Sauder, J. M., Burley, S. K., ... Macmillan, A. M. (2012). Cas5d processes pre-crRNA and is a member of a larger family of CRISPR RNA endonucleases. RNA, 18(11), 2020-2028. https://doi.org/10.1261/rna.033100.112

Cas5d processes pre-crRNA and is a member of a larger family of CRISPR RNA endonucleases. / Garside, Erin L.; Schellenberg, Matthew J.; Gesner, Emily M.; Bonanno, Jeffrey B.; Sauder, J. Michael; Burley, Stephen K.; Almo, Steven C.; Mehta, Garima; Macmillan, Andrew M.

In: RNA, Vol. 18, No. 11, 11.2012, p. 2020-2028.

Research output: Contribution to journalArticle

Garside, EL, Schellenberg, MJ, Gesner, EM, Bonanno, JB, Sauder, JM, Burley, SK, Almo, SC, Mehta, G & Macmillan, AM 2012, 'Cas5d processes pre-crRNA and is a member of a larger family of CRISPR RNA endonucleases', RNA, vol. 18, no. 11, pp. 2020-2028. https://doi.org/10.1261/rna.033100.112
Garside EL, Schellenberg MJ, Gesner EM, Bonanno JB, Sauder JM, Burley SK et al. Cas5d processes pre-crRNA and is a member of a larger family of CRISPR RNA endonucleases. RNA. 2012 Nov;18(11):2020-2028. https://doi.org/10.1261/rna.033100.112
Garside, Erin L. ; Schellenberg, Matthew J. ; Gesner, Emily M. ; Bonanno, Jeffrey B. ; Sauder, J. Michael ; Burley, Stephen K. ; Almo, Steven C. ; Mehta, Garima ; Macmillan, Andrew M. / Cas5d processes pre-crRNA and is a member of a larger family of CRISPR RNA endonucleases. In: RNA. 2012 ; Vol. 18, No. 11. pp. 2020-2028.
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