DDBJ in collaboration with mass-sequencing teams on annotation

Area of Science:

• Genomics and Bioinformatics
• Molecular Biology
• Gene Expression Analysis

Background:

• The DNA Data Bank of Japan (DDBJ) plays a crucial role in archiving and disseminating biological sequence data.
• Accurate and comprehensive annotation of full-length cDNAs is essential for understanding gene function and regulation.
• Advancements in sequencing technologies necessitate efficient data management and release strategies.

Purpose of the Study:

• To report the data collection and release activities of DDBJ over the past year.
• To highlight the integration of new data types, such as Cap Analysis Gene Expression (CAGE) data, for genome annotation.
• To emphasize DDBJ's commitment to facilitating research through public data accessibility and annotation workshops.

Main Methods:

• Collection and release of over 1 million genetic sequence entries, totaling over 718 million bases.
• Hosting workshops for human and mouse full-length cDNA annotation.
• Collaboration with RIKEN to establish a new Mass Sequences for Genome Annotation (MGA) data category for CAGE data.

Main Results:

• Release of diverse genomic data, including the complete chimpanzee chromosome 22 and whole-genome shotgun sequences of silkworm.
• Public availability of annotated human and mouse full-length cDNA data.
• Establishment of the MGA category to accommodate CAGE data, enhancing genome annotation resources.

Conclusions:

• DDBJ significantly expanded its public genetic database with substantial new entries and diverse species data.
• Active participation in annotation workshops and data integration initiatives improves the quality and utility of genomic information.
• The newly incorporated CAGE data under the MGA category will provide valuable insights into gene expression control mechanisms.