NCBI Mass Sequence Downloader

NCBI Mass Sequence Downloader retrieves large collections of sequence records from selected NCBI databases for bulk computational sequence analysis.

Key Features:

• Mass Download Capability: Performs bulk retrieval of sequence records from selected NCBI databases.
• Automated Retry Mechanism: Verifies downloaded results, detects missing sequences, and automatically retries requests until all requested sequences are stored locally.
• Cross-Platform Python Compatibility: Implemented in Python and compatible with Linux, Windows, and Mac OSX, supporting Python 2 and Python 3 environments.

Scientific Applications:

• Bioinformatics: Provides large sequence datasets required for computational sequence analyses.
• Genomics: Enables retrieval of extensive genomic sequence collections from NCBI for downstream genomic analyses.
• Molecular Evolution: Supplies bulk sequence data for molecular evolution investigations.
• BLAST and Comparative Analyses: Produces input datasets for local BLAST searches and comparative evolutionary studies.

Methodology:

Performs bulk queries to selected NCBI databases, downloads sequence records, verifies for missing sequences, and retries downloads until all requested sequences are stored locally.