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A small and free tool for protein alignment

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STRAP screenshotSTRAP is a small, simple and handy application that will help you align proteins by their 3D structure and sequence. The program offers you the possibility to simultaneously align hundreds of proteins with a single muse click. Moreover, the application integrates amino-acid sequence, 3D-structure, secondary structure, mRNA sequence, residue annotation and genomic-sequence.

STRAP allows you to easily import and export proteins just by using the Drag&Drop method. You can export and modify the alignment in various text processors. The utility comes with an intuitive interface which offers you fast access to the latest bioinformatics tools. You can also search protein databases with minimum effort.

STRAP lets you predict Transmembrane helices, secondary structure, and Coiled Coil. The program also enables you to underline essential sequence positions, such as glycosylated or phosphorylated residues. The application lets you export your data to various formats, including Clustal, Multiple Fasta, MSF, HSSP, and Jalview. In addition, you have the possibility to generate enhanced figures for publications with MS-Word, PDF, Open Office, Libre Office and Gwrite.


  • The application is able to align hundreds of proteins at once.
  • The program comes with an intuitive and highly functional interface.


  • The application requires Java.
Version 1.0
Developer | see all products from this developer
Product Homepage STRAP
License Free (Freeware)
Last Week Downloads 5
All Time Downloads 2,970
Filename strap.jar
Filesize 3.0MB
MD5 Checksum ECE5CB982EF754AF6062D7AFE5F39EC8
OS Support Windows All
Category Home & Education


Old Versions

Software Date Added
STRAP 1.0 September 25, 2017 - Latest Version
STRAP 1 November 23, 2010

Download the free STRAP