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Established in the mid 1970's, New England Biolabs, Inc. (NEB) is the industry leader in the discovery and production of enzymes for molecular biology applications and now offers the largest selection of recombinant and native enzymes for genomic research. NEB continues to expand its product offerings into areas related to PCR, gene expression, sample preparation for next generation sequencing, synthetic biology, glycobiology, epigenetics and RNA analysis. Additionally, NEB is focused on strengthening alliances that enable new technologies to reach key market sectors, including molecular diagnostics development. New England Biolabs is a privately held company, headquartered in Ipswich, MA, and has extensive worldwide distribution through a network of exclusive distributors, agents and seven subsidiaries located in Canada, China, France, Germany, Japan, Singapore and the UK. For more information about New England Biolabs visit neb.

PlasMa DNA: Free, cross-platform plasmid mapping and analysis software

Content sponsored by New England Biolabs

If you are looking for some free plasmid manipulation and analysis software, then you need look no further than PlasMa DNA. It’s packed with features, user friendly and looks great. Best of all, it is a cross-platform application – it works on both PC and Mac, and the files produced on one operating system can be opened and used on the other.

Sequence data can be entered by simple cut and paste, or by uploading FASTA files and the maps produced are neat and clear. But, the real power of this application lies in the analysis and manipulation features. Restriction, % GC and ORF analyses, in silico PCR and sequence alignments are all possible. Cloning strategies can also be devised and carried out – either manually or using the automatic cloning strategy suggestion feature. Even Gateway cloning strategies can be implemented which, in the world of molecular biology freeware, is unique to this program as far as I am aware.

The one feature I would like to see, and which I think would make this application more complete, is the ability to upload seqeunces directly from genbank or other databases, but maybe that’s something for the future. This software is the result of the efforts of Alexandre Angers-Loustau, a molecular biologist-come-semi-professional computer programmer. He assures me that more software is in the pipleine, so we can all look forward to that. PlasMap can be downloaded from here.


  1. jinxiang Yuan on August 22, 2017 at 5:14 pm

    construction of plasmid

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