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BLAST Algorithm Workflow

Open BLAST Algorithm Workflow Fullscreen

About This MicroSim

Chapter 14: Genomics, Sequencing, and Bioinformatics

Library: Mermaid

Type: flowchart sim-id: blast-algorithm-workflow
Library: Mermaid
Status: Specified

A flowchart showing the three phases of the BLAST algorithm: (1) Seeding phase -- query broken into k-mer words, exact matches found in database index; (2) Extension phase -- seed matches extended bidirectionally using dynamic programming, low-scoring extensions dropped; (3) Evaluation phase -- surviving alignments scored, E-values calculated, results ranked. Include example input (query sequence) and output (ranked hit list with E-values).