Two 12 kDa FK506-binding protein (FKBP12) genes were isolated and characterized from Chinese oak silkworm Antheraea pernyi , an important agricultural and edible insect, designated ApFKBP12 A and B, respectively. Both ApFKBP12 A and B contained 108 amino acids with 82% sequence identity. Phylogenetic analysis showed that FKBP12 B sequences of A. pernyi, Bombyx mori , and Danaus plexippus were clearly separated from FKBP12 A sequences of these three species, suggesting that insect FKBP12 A and B may have been evolving independently. RT-PCR analyses revealed that two ApFKBP12 genes were expressed during the four developmental stages and in all tested tissues, and that the mRNA expression level of the ApFKBP12 A gene was significantly higher than that of the ApFKBP12 B gene. After heat shock treatment, expressions of the two FKBP12 genes were up-regulated, but at different time points. The results suggested that each paralogue of the FKBP12 genes may play a distinct functional role in the development of A. pernyi.
With the rapid development of high-throughput sequencing technology, the amount of metagenomic data (including both 16S and whole-genome sequencing data) in public repositories is increasing exponentially. However, owing to the large and decentralized nature of the data, it is still difficult for users to mine, compare, and analyze the data. The animal metagenome database (AnimalMetagenome DB) integrates metagenomic sequencing data with host information, making it easier for users to find data of interest. The AnimalMetagenome DB is designed to contain all public metagenomic data from animals, and the data are divided into domestic and wild animal categories. Users can browse, search, and download animal metagenomic data of interest based on different attributes of the metadata such as animal species, sample site, study purpose, and DNA extraction method. The AnimalMetagenome DB version 1.0 includes metadata for 82,097 metagenomes from 4 domestic animals (pigs, bovines, horses, and sheep) and 540 wild animals. These metagenomes cover 15 years of experiments, 73 countries, 1,044 studies, 63,214 amplicon sequencing data, and 10,672 whole genome sequencing data. All data in the database are hosted and available in figshare 10.6084/m9.figshare.19728619.
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