dbRIP: a highly integrated database of retrotransposon insertion polymorphisms in humans

Area of Science:

• Genomics
• Molecular Biology
• Bioinformatics

Background:

• Retrotransposons comprise over 40% of the human genome and are crucial for its evolution.
• Active Alu, L1, and SVA retrotransposon families generate significant human genomic diversity through insertion polymorphisms (RIPs).
• Some RIPs are associated with genetic diseases, highlighting their clinical relevance.

Purpose of the Study:

• To introduce dbRIP, a novel, integrated, and interactive database of human retrotransposon insertion polymorphisms (RIPs).
• To provide researchers with a comprehensive resource for exploring RIPs and their role in human genetics.

Main Methods:

• Compilation of polymorphic Alu, L1, and SVA elements from existing reports.
• Integration of data using the University of California at Santa Cruz (UCSC) genome browser utilities.
• Development of user-friendly query and browsing functionalities for detailed RIP information.

Main Results:

• dbRIP contains a nonredundant collection of 2,095 RIPs: 1,625 polymorphic Alu, 407 L1, and 63 SVA elements.
• The database provides detailed insertion sequences and genotype data for each RIP.
• Integrative browsing allows simultaneous examination of RIPs alongside other genomic annotations.

Conclusions:

• dbRIP is the first comprehensive, integrative, and interactive database for human RIPs.
• This resource will significantly aid researchers investigating human genetic diversity and disease.
• dbRIP facilitates the discovery and analysis of newly identified polymorphic retrotransposon insertions.