BLAST2SRS

BLAST2SRS integrates BLAST-based sequence-similarity searches with SRS keyword-based searches to enable targeted retrieval of homologous sequences from biological databases.

Key Features:

• Dual Search Capability: Combines BLAST (Basic Local Alignment Search Tool) sequence-similarity searches with SRS (Sequence Retrieval System) keyword-based searches to identify homologous sequences and annotation-based records.
• Control of SRS from BLAST output: BLAST output is used to drive or refine SRS keyword queries, enabling focused retrieval of subsets of homologous sequences.
• Efficient combined retrieval: Integrates similarity-based alignment scoring from BLAST with annotation/keyword filters from SRS to improve retrieval specificity from large biological databases.

Scientific Applications:

• Genomics: Identification and retrieval of homologous genomic sequences for gene function annotation and comparative analysis.
• Proteomics: Retrieval of homologous protein sequences and associated annotations for functional inference and biomarker discovery.
• Molecular biology: Targeted extraction of sequence records linked to specific functions, structures, or annotations for experimental design and evolutionary studies.

Methodology:

Sequence-similarity searches using BLAST with alignment-scoring systems; keyword-based searches using SRS; BLAST output is used to formulate or refine SRS keyword queries for targeted sequence retrieval.