Make more of your alignments with MacVector 17.5

Our latest release MacVector 17.5 gives you new tools to make the most of your alignments.

It displays shared domains in protein alignments to visualize the relationships between aligned proteins. It introduces Flye for de novo assembly of PacBio and Oxford Nanopore long reads and a slew of enhancements to the Contig and Align to Reference Editors.

As ever there are a slew of minor enhancements, bug fixes and changes to better support the latest releases of macOS.

Outlining Shared Domains in Aligned Sequences

Outline shared aligned domains Multiple sequence alignments now retain feature information and can use this to outline shared domains in the Picture output tab. You can set the colors of features in the individual sequence documents in the usual way and these are used for the outlines.

There is a feature display mode in the Editor tab where you can see the extent and color of the features. When you switch to the Picture tab, you will see colored outlines around the shared domains;

Prions text

de novo Assembly of PacBio and Oxford Nanopore reads with Flye

Flye is an assembler algorithm tuned to assemble poor quality long reads such as those produced by PacBio and Oxford Nanopore sequencers. Because these reads tend to be very error prone, MacVector 17.5 also includes an optional polishing step using Racon. With typical bacterial genome assemblies it is fairly common to be able to assemble reads into a single full-length genome contig.

Contig and Align to Reference Editor Enhancements

There have been a number of enhancements to these editors, primarily to aid in visualizing edits and quality values and to “clean up” the visual appearance of alignments.

Residue Background Colored by Quality

There have been several changes to provide improved support for quality values of de novo contigs and reference assemblies.
A Shading toolbar button lets you turn on coloring based on quality and edited residues are visualized with a blue background. Edited residues are always given a phred quality value of 99 – these residues are given a blue background.

Base Calling with Phred

You can now directly run phred on Sanger sequencing trace files in the Align to Reference Editor by clicking on the Basecall toolbar item with the appropriate sequences selected;

Assembly qualityscorecolouring 2 2x 400

Editing Enhancements

There are some new context-sensitive menu items in the Align to Reference Editor tab

Delete Clipped Residues – deletes any greyed-out (“clipped” or “trimmed”) residues. While these are ignored by the consensus calculation, some users prefer to delete them for a cleaner looking alignment.

Close Gaps by Deleting Residues – you’ll often see gaps in the consensus where one or more reads has an additional erroneous inserted residue. This menu item removes the extra residues from the read, cleaning up the visual appearance of the alignment.

Nudge reads – Select the name of the sequence you want to nudge and use the left/right arrow keys to move it around. If you have problematic alignments where you need to physically insert residues or gaps, hold down the

MSADomainEditor 2x

Miscellaneous Enhancements

There have been a large number of minor enhancements. Some, such as reworking code behind the scenes to replace deprecated Apple functions and refactoring code for better stability and performance help ensure that MacVector will continue to work on upcoming releases of macOS and take advantage of improved hardware. There have also been improvements to Dark Mode support in many area and much better handling of the labels in crowded Map views.

How to upgrade to MacVector 17.5

If you have active maintenance and are running MacVector 15.5.4 or later then you will be notified about the new release. To install this version, you must have a maintenance contract that was active on 1st February, 2020. You must also be running MacVector 15.5.4 and OS X 10.9 Mavericks or later.

If you have an older version of MacVector then download the trial and request an upgrade quote.

Even if you have downloaded the trial in the past then downloading a new trial will give you a fresh 21 days to evaluate MacVector.

When a trial license expires it becomes MacVector Free. So if you decide against upgrading then you can just delete the trial license and easily go back to your current version. It’s risk free as MacVector files are backwards compatible.

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