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a catalog of biological databases

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Database Profile

General information

Full name: a database of prokaryotic defense systems related genes
Description: PADS (Prokaryotic Antiviral Defense System) Arsenal is a database of prokaryotic defense systems related genes, which archived genes that are associated with 18 distinctive categories of defense systems.
Year founded: 2019
Last update: 2019-05-16
Version: v1.0
Real time : Checking...
Country/Region: China

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Contact information

University/Institution: Beijing Institute of Genomics, Chinese Academy of Sciences
Address: Prof. Jingfa Xiao, BIG Data Center, Beijing Institute of Genomics, Chinese Academy of Sciences No.1 Beichen West Road Chaoyang District, Beijing 100101 China
City: Beijing
Province/State: Beijing
Country/Region: China
Contact name (PI/Team): Prof. Jingfa Xiao
Contact email (PI/Helpdesk):


PADS Arsenal: a database of prokaryotic defense systems related genes. [PMID: 31620779]
Zhang Y, Zhang Z, Zhang H, Zhao Y, Zhang Z, Xiao J.

Defense systems are vital weapons for prokaryotes to resist heterologous DNA and survive from the constant invasion of viruses, and they are widely used in biochemistry investigation and antimicrobial drug research. So far, numerous types of defense systems have been discovered, but there is no comprehensive defense systems database to organize prokaryotic defense gene datasets. To fill this gap, we unveil the prokaryotic antiviral defense system (PADS) Arsenal (, a public database dedicated to gathering, storing, analyzing and visualizing prokaryotic defense gene datasets. The initial version of PADS Arsenal integrates 18 distinctive categories of defense system with the annotation of 6 600 264 genes retrieved from 63,701 genomes across 33 390 species of archaea and bacteria. PADS Arsenal provides various ways to retrieve defense systems related genes information and visualize them with multifarious function modes. Moreover, an online analysis pipeline is integrated into PADS Arsenal to facilitate annotation and evolutionary analysis of defense genes. PADS Arsenal can also visualize the dynamic variation information of defense genes from pan-genome analysis. Overall, PADS Arsenal is a state-of-the-art open comprehensive resource to accelerate the research of prokaryotic defense systems.

Nucleic Acids Res. 2020:48(D1) | 11 Citations (from Europe PMC, 2022-05-14)


All databases:
1455/5177 (71.914%)
Gene genome and annotation:
436/1407 (69.083%)
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Record metadata

Created on: 2020-11-08
Curated by:
lin liu [2021-03-24]
Qiang Du [2020-11-19]
Chang Liu [2020-11-08]