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Open AccessJournal ArticleDOI

REBASE—a database for DNA restriction and modification: enzymes, genes and genomes

TLDR
REBASE is a comprehensive and fully curated database of information about the components of restriction-modification (RM) systems that contains fully referenced information about recognition and cleavage sites for both restriction enzymes and methyltransferases as well as commercial availability, methylation sensitivity, crystal and sequence data.
Abstract
REBASE is a comprehensive and fully curated database of information about the components of restriction-modification (RM) systems. It contains fully referenced information about recognition and cleavage sites for both restriction enzymes and methyltransferases as well as commercial availability, methylation sensitivity, crystal and sequence data. All genomes that are completely sequenced are analyzed for RM system components, and with the advent of PacBio sequencing, the recognition sequences of DNA methyltransferases (MTases) are appearing rapidly. Thus, Type I and Type III systems can now be characterized in terms of recognition specificity merely by DNA sequencing. The contents of REBASE may be browsed from the web http://rebase.neb.com and selected compilations can be downloaded by FTP (ftp.neb.com). Monthly updates are also available via email.

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Citations
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Journal ArticleDOI

Crystal Structure and Directed Evolution of Specificity of NlaIV Restriction Endonuclease.

TL;DR: A directed evolution approach to the engineering of a dimeric, blunt end cutting restriction enzyme NlaIV (GGN/NCC), which obtained variants cleaved target sites with an up to 100-fold kcat/KM preference for AT or TA (GGW/WCC) over GC or CG (GGS/SCC) in the central dinucleotide step.
Journal ArticleDOI

Characterization of Vsr endonucleases from Neisseria meningitidis

TL;DR: It is demonstrated that the VSP repair system may have a wider significance and broader substrate specificity than DNA lesions that only result from 5-methylcytosine deamination, and for the first time, this work reports on the mutagenic potential of the meningococcal C5-methyltransferases.
Journal ArticleDOI

The Architecture of Restriction Enzymes

TL;DR: A high resolution structure of a polymerized form of the SgrAI restriction enzyme is described, which shows that it forms a helical assembly with four enzyme molecules per turn of the helix.
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Cofactor analogue-induced chemical reactivation of endonuclease activity in a DNA cleavage/methylation deficient TspGWI N473A variant in the NPPY motif

TL;DR: A case study of a novel strategy for REase activity/specificity alteration by a single aa substitution, based on the bioinformatic analysis of active motif locations, combining the alteration of protein enzymatic properties, and the use of cofactor–analogue cleavage reconstitution and stimulation.
Journal ArticleDOI

Optimizing restriction site placement for synthetic genomes

TL;DR: It is shown that the resulting problem is NP-Complete, the resulting modified genomes have several times more unique restriction sites and reduce the maximum gap between adjacent sites by three to nine-fold.
References
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Journal ArticleDOI

The Pfam protein families database

TL;DR: The definition and use of family-specific, manually curated gathering thresholds are explained and some of the features of domains of unknown function (also known as DUFs) are discussed, which constitute a rapidly growing class of families within Pfam.
Journal ArticleDOI

Pfam: the protein families database.

TL;DR: Pfam as discussed by the authors is a widely used database of protein families, containing 14 831 manually curated entries in the current version, version 27.0, and has been updated several times since 2012.
Journal ArticleDOI

NCBI Reference Sequence (RefSeq): a curated non-redundant sequence database of genomes, transcripts and proteins

TL;DR: The National Center for Biotechnology Information Reference Sequence (RefSeq) database provides a non-redundant collection of sequences representing genomic data, transcripts and proteins that pragmatically includes sequence data that are currently publicly available in the archival databases.
Journal ArticleDOI

The Universal Protein Resource (UniProt)

TL;DR: During 2004, tens of thousands of Knowledgebase records got manually annotated or updated; the UniProt keyword list got augmented by additional keywords; the documentation of the keywords and are continuously overhauling and standardizing the annotation of post-translational modifications.
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