gene-database

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• Gene Database
• Overview
• When to Use This Skill
• Quick Start
• Common Workflows
• Search Genes by Symbol or Name
• Retrieve Gene Information by ID
• Batch Gene Lookups

NCBI Gene is a comprehensive database integrating gene information from diverse species. It provides nomenclature, reference sequences (RefSeqs), chromosomal maps, biological pathways, genetic variations, phenotypes, and cross-references to global genomic resources. This skill should be used when working with gene data including searching by gene symbol or ID, retrieving gene sequences and metadata, analyzing gene functions and pathways, or performing batch gene lookups. NCBI provides two main APIs for gene data access: 1. E-utilities (Traditional): Full-featured API for all Entrez databases with flexible querying 2. NCBI Datasets API (Newer): Optimized for gene data retrieval with simplified workflows Choose E-utilities for complex queries and cross-database searches. Choose Datasets API for straightforward gene data retrieval with metadata and sequences in a single request. To search for genes by symbol or name across organisms: 1. Use the scripts/querygene.py script with E-utilities ESearch 2. Specify the gene symbol and organism (e.g., "BRCA1 in human") 3. The script returns matching Gene IDs Example query patterns: Gene symbol: insulin[gene name] AND human[organism] Gene with

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