General musings from the MacVector team about sequence analysis, molecular biology, the Mac in general and of course your favorite sequence analysis app for the Mac!

Tag Archives: genbank

Viewing external database entries for features in a sequence.

Sequences, or regions of sequences, can be linked to external databases. For example an entire sequence entry or for when annotation tools are used to annotate proteins with domain or motif information (for example┬áInterProScan). Very useful for when you want to view more detailed or updated information. Within the Genbank specification, which MacVector extensively uses, […]

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Import Multi-Sequence Genbank Files into an Assembly Project for easy access to Features

There are many genomes in the Genbank database that cannot be downloaded as single annotated sequences. These might be large multi-chromosome eukaryotic genomes, but, increasingly, partially sequenced bacterial chromosomes where the major contigs have been annotated using the NCBI annotation pipeline. Typically, when you encounter these, there are options to download annotated versions of these […]

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Opening multiple sequences as alignments or individual sequences

Many sequence formats contain multiple concatenated sequence entries. For example FASTA and Genbank are two formats capable of storing multiple individual sequences. By default MacVector will treat such sequences as alignments and open them in the Multiple Sequence Alignment editor. Most users who want to open such a file do want to see an alignment. […]

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Importing Genbank files from Safari or other web browsers.

  While MacVector does have a built-in Entrez browser (Database | Internet Entrez Search) you can easily import GenBank formatted text into MacVector via a simple copy and paste approach. Many sequence-oriented web sites have the option of viewing sequences in GenBank format. This format always starts with the text LOCUS and finishes with two […]

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Importing sequences from Addgene into MacVector

The Addgene repository is a great place for obtaining expression vectors and other plasmids for your research. Fully annotated sequences are available for most plasmid sequences, although older plasmid deposits may be only partially annotated. All are very easy to import into MacVector. All Addgene sequence deposits have a Genbank formatted sequence. This should contain […]

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Use File -> New From Clipboard to create new sequence documents

Whenever you have information copied to the clipboard, you can choose File | New From Clipboard and MacVector will interpret any data on the clipboard and create a new document of the appropriate type. While this is most commonly used for DNA and Protein sequence documents, this also works for multiple sequence alignments and data […]

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How to import annotated GenBank sequences via copy and paste

While MacVector does have a built-in Entrez browser (Database > Internet Entrez Search) you can easily import GenBank formatted text into MacVector via a simple copy and paste approach. Many sequence-oriented web sites have the option of viewing sequences in GenBank format. This format always starts with the text LOCUS and finishes with two forward […]

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Using Applescript to batch convert files.

Up until MacVector 13 Applescript support was fairly limited. However, with this release we’ve started to expand it. The first enhancement has been to improve the export of files. Now you can export files to any supported format. Over the next few releases this support will be further expanded to include some analysis tools. If […]

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Importing sequences from ENSEMBL

There’s a few different ways to import annotation from the ENSEMBL database browser, as well as other databases. Using Genbank The easiest way to export from ENSEMBL and keep all annotation is to use the Genbank format. The default format will be FASTA which has no annotation. With Genbank all the annotation is stored in […]

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The oldest entries in Genbank? Some fun for Labor day.

Inspired by some tweets from @ewanbirney, because I’m waiting for lunch and because it’s Labor Day I used the Entrez tool to find the oldest entries (using the publication date field) in Genbank. For proteins there’s a single hit in 1979 For NA there’s 12 hits from 1982: Nothing useful here and it’s probably not […]

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