Tracking and coordinating an international curation effort for the CCDS Project

Area of Science:

• Genomics
• Bioinformatics
• Molecular Biology

Background:

• The Consensus Coding Sequence (CCDS) project aims to establish a high-quality, curated set of protein-coding region annotations for reference genomes.
• Accurate gene annotations are crucial for experimental design, data analysis, and interpretation in biological research.

Purpose of the Study:

• To present the current status and procedures of the CCDS database.
• To detail the curation standards and guidelines for human and mouse genome annotation.
• To ensure consistency and quality in protein-coding sequence annotations.

Main Methods:

• Analysis of automated whole-genome annotation builds to identify identical CDS annotations.
• Implementation of quality assurance testing and manual curation.
• Development of specific curation guidelines for NMD candidates, upstream ORFs, start codons, and readthrough transcripts.

Main Results:

• The CCDS database provides a conservative, high-quality set of protein-coding annotations.
• Standardized curation guidelines improve annotation consistency and reduce discussion time.
• CCDS identifiers track identical CDS annotations, requiring consensus for changes.

Conclusions:

• The CCDS collaboration offers a reliable 'gold standard' dataset for human and mouse gene annotations.
• The established procedures and guidelines ensure the integrity and accuracy of genome annotation data.
• This resource facilitates robust research by providing dependable gene information.