Biomaterial Database

Finally, Archaea Get Their CRISPR-Cas Toolbox. 2017

Uri Gophna, and Thorsten Allers, and Anita Marchfelder

Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978-01, Israel.

The majority of archaea encode CRISPR-Cas systems but only a few CRISPR-Cas-based genetic tools have been developed for organisms from this domain. Nayak and Metcalf have harnessed a bacterial Cas9 protein for genome editing in Methanosarcina acetivorans, enabling efficient gene deletion and replacement.

UI	MeSH Term	Description	Entries
D000072669	Gene Editing	Genetic engineering or molecular biology techniques that involve DNA REPAIR mechanisms for incorporating site-specific modifications into a cell's genome.	Base Editing,Genome Editing,Editing, Base,Editing, Gene,Editing, Genome
D000094704	RNA, Guide, CRISPR-Cas Systems	A component of CRISPR-Cas SYSTEMS. Cas endodeoxyribonucleases assemble with a guide RNA complex, a hybrid of CRISPR RNA (crRNA) and transactivating crRNA (tracrRNA) molecules, to form an active complex that cleaves DNA. crRNA and tracrRNA can be synthetically fused into a single RNA molecule, namely single guide RNA. Synthetic sgRNA is used with CRISPR-Cas SYSTEMS for targeted GENE EDITING.	CRISPR Guide RNA,CRISPR-Cas Systems sgRNA (Single Guide RNA),Guide RNA (CRISPR-Cas Systems),Guide RNA, CRISPR-Cas Systems,RNA, CRISPR Guide,RNA, Guide (CRISPR-Cas Systems),RNA, Single Guide,RNA, Single-Guide,Single Guide RNA,Single-Guide RNA,Transactivating crRNA,crRNA,crRNA, Transactivating,sgRNA (CRISPR-Cas Systems),sgRNA (Single-Guide RNA),tracrRNA,Guide RNA, CRISPR,Guide RNA, CRISPR Cas Systems,Guide RNA, Single
D001105	Archaea	One of the three domains of life (the others being BACTERIA and Eukarya), formerly called Archaebacteria under the taxon Bacteria, but now considered separate and distinct. They are characterized by: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls; (3) the presence of ether-linked lipids built from branched-chain subunits; and (4) their occurrence in unusual habitats. While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. The domain contains at least four kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; NANOARCHAEOTA; and KORARCHAEOTA.	Archaebacteria,Archaeobacteria,Archaeon,Archebacteria
D001426	Bacterial Proteins	Proteins found in any species of bacterium.	Bacterial Gene Products,Bacterial Gene Proteins,Gene Products, Bacterial,Bacterial Gene Product,Bacterial Gene Protein,Bacterial Protein,Gene Product, Bacterial,Gene Protein, Bacterial,Gene Proteins, Bacterial,Protein, Bacterial,Proteins, Bacterial
D017020	Methanosarcina	A genus of anaerobic, irregular spheroid-shaped METHANOSARCINALES whose organisms are nonmotile. Endospores are not formed. These archaea derive energy via formation of methane from acetate, methanol, mono-, di-, and trimethylamine, and possibly, carbon monoxide. Organisms are isolated from freshwater and marine environments.
D017353	Gene Deletion	A genetic rearrangement through loss of segments of DNA or RNA, bringing sequences which are normally separated into close proximity. This deletion may be detected using cytogenetic techniques and can also be inferred from the phenotype, indicating a deletion at one specific locus.	Deletion, Gene,Deletions, Gene,Gene Deletions
D059765	Homologous Recombination	An exchange of DNA between matching or similar sequences.	Homologous Recombinations,Recombination, Homologous,Recombinations, Homologous
D059766	DNA End-Joining Repair	The repair of DOUBLE-STRAND DNA BREAKS by rejoining the broken ends of DNA to each other directly.	Non-Homologous DNA End-Joining,End-Joining DNA Repair,MMEJ DNA Repair,Microhomology-Mediated End Joining Repair,NHEJ DNA Repair,Nonhomologous DNA End-Joining,DNA End Joining Repair,DNA End-Joining, Non-Homologous,DNA End-Joining, Nonhomologous,DNA Repair, End-Joining,DNA Repair, MMEJ,DNA Repair, NHEJ,End Joining DNA Repair,End-Joining Repair, DNA,End-Joining, Non-Homologous DNA,Microhomology Mediated End Joining Repair,Non Homologous DNA End Joining,Nonhomologous DNA End Joining,Repair, DNA End-Joining,Repair, End-Joining DNA,Repair, MMEJ DNA,Repair, NHEJ DNA
D018390	Gene Targeting	The integration of exogenous DNA into the genome of an organism at sites where its expression can be suitably controlled. This integration occurs as a result of homologous recombination.	Gene Targetings,Targeting, Gene,Targetings, Gene
D019766	Genes, Archaeal	The functional genetic units of ARCHAEA.	Archaeal Genes,Archaeal Gene,Gene, Archaeal