Category: Tips
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Working from home: An overview of assembling sequence data with MacVector and Assembler
Working from home Here’s a series of blog posts on the wide range of functionality in MacVector that you may never have used before. This is an overview of the many different sequence assembly tools within MacVector. The MacVector team used these tools to mine existing sequencing archives to assemble a new Pangolin SARS-CoV–2 genome. To…
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Accessing video tutorials of common workflows inside MacVector
During the Covid-19 pandemic we want to ensure that you have access to the MacVector license that you would use in the lab, if you are working from home. If you use MacVector, even an older version, and are having trouble activating it (or installing it) at home email MacVector Support and we will help. If you…
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Working from home – Getting your sequence into MacVector
During the Covid-19 pandemic we want to ensure that you have access to the MacVector license that you would use in the lab, if you are working from home. If you use MacVector, even an older version, and are having trouble activating it (or installing it) at home email MacVector Support and we will help. If you…
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101 things you (maybe) didn’t know about MacVector: #52 – Data mining to identify and analyze pangolin CoV-2 analogs to the human COVID-19 virus
One of the most underrated features in MacVector is the Database | Align to Folder function. You can use this as a more sensitive version of a local BLAST search to find sequences in a “database” that match a query sequence. But in this case the “database” is simply a collection of your own sequences,…
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Primer validation with MacVector: Primer3, Covid19 and primer design
The CDC recently published diagnostic real-time primers for identification of SARS-CoV–2 in any person suspected of having COVID–19. Unfortunately as pointed out on the Biome Informatics blog these primers have issues that should have easily been detected had the primers been tested using a good quality primer testing tool (the linked blog post uses Primer3).…
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Importing BAM files into an Assembly Project
You can import BAM files, containing reads mapped against a reference sequence, into a MacVector Assembly Project. As well as the BAM file(s) you will also need the original reference sequence the reads were mapped against. FASTA is fine, but an annotated reference is better for visualisation. The tool needed is called ADD CONTIG. This…
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Calculating the optimal PCR annealing temperature
MacVector has several tools to help with primer design and testing. The Analyze | Primer Design/Test (Pairs) function uses the popular Primer3 algorithm to find suitable pairs of primers to amplify specified segments of DNA. You can also enter pairs of pre-designed primers and test their suitability for use in PCR. In both cases, the…
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How to copy a specific short amino acid translation of a sequence
There can be times when you are messing about with open reading frames, inserting residues to change frames to try to get the perfect CDS fusion. The MacVector single sequence Editor will show those (click and hold on the “Display” toolbar button) but if you select and copy, only the DNA sequence (with any overlapping…
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Optimizing Reverse Translations
The Analyze | Reverse Translation menu option lets you create a DNA sequence from a Protein sequence, reverse translated using a specific Genetic Code (by default, the Universal Genetic Code). The default option creates a DNA sequence with N’s and other ambiguities reflecting the degeneracy of the genetic code. This is great if you want…
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Use Database | Auto-Annotate Sequence to annotate prokaryotic genomes
The continuing advances in Next Generation Sequencing have made it relatively low cost to sequence prokaryotic genomes. Many scientists are embarking on large projects to sequence multiple related genomes. These might be clinical isolates of the same species exhibiting different pathogenetic properties, environmental isolates from different sites, or a study over time of the changes…