FASTA Generator
Generate custom FASTA sequences for research and analysis.
Sequence configuration parameters
Generated Sequence
Your generated FASTA sequence will appear here
Select a marker and click "Generate Sequence" to begin
About FASTA Generation
This module produces high quality FASTA sequences for Short Tandem Repeat (STR) markers, using curated reference regions derived from GRCh38.
Each generated sequence represents the expected genomic structure of the STR locus, with customizable upstream and downstream flanking regions.
Overview
STRhub's FASTA Generator allows researchers to explore allelic variability by simulating STR repeat patterns with precise genomic context.
Users can define allele ranges, adjust flanking lengths, and export the resulting sequences in several standardized formats.
Features
- Full support for CODIS core and extended STR markers
- Reference-based slices aligned to GRCh38
- Customizable flanking regions (0–1000 bp per side)
- Multiple export formats: Standard FASTA, Reference-style FASTA, Multi-FASTA, and Tabular CSV
- Direct download and copy options
Use cases
- Forensic and population genetics research
- Allelic reconstruction and in silico analysis
- Primer design and assay validation
- Educational and training purposes in forensic genomics