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CasPDB: an integrated and annotated database for Cas proteins from bacteria and archaea.

Zhongjie Tang1, ShaoQi Chen1, Ang Chen1

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Researchers created Cas Protein Data Bank (CasPDB), a database of Cas proteins from bacteria and archaea. This resource aids in discovering new genome editing tools by organizing Cas protein information and experimental evidence.

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Area of Science:

  • Microbiology
  • Bioinformatics
  • Genomics

Background:

  • CRISPR-Cas systems are essential prokaryotic defense mechanisms against viruses.
  • These systems have been repurposed into powerful genome editing technologies.
  • Discovering novel Cas proteins is critical for advancing genome editing capabilities.

Purpose of the Study:

  • To construct a comprehensive and annotated online database for Cas proteins.
  • To facilitate the exploration and characterization of new Cas proteins from bacteria and archaea.
  • To provide a centralized information hub for Cas protein research.

Main Methods:

  • Development of the Cas Protein Data Bank (CasPDB).
  • Integration and annotation of Cas protein data from diverse bacterial and archaeal species.
  • Web interface development for database browsing and searching.

Main Results:

  • CasPDB houses 287 reviewed and 257,745 putative Cas proteins.
  • The database includes 3,593 Cas operons from 32,023 bacterial and 1,802 archaeal species.
  • 328 of the identified operons belong to the type II CRISPR-Cas system.

Conclusions:

  • CasPDB serves as a valuable resource for researchers in the CRISPR-Cas field.
  • The database supports the ongoing discovery and characterization of novel genome editing tools.
  • Facilitates systematic exploration of Cas proteins and their associated operons.