Table 1.

A summary of the data in SGID

Item	Description	Cov.	Previous
Genome	High-quality assembly of the silkworm genome in chromosome level (7)		The same as Kawamoto et al. and Mita et al. (7, 16)
Gene models	16 880 in total, with 12 752 correlated with old gene models (4, 28)		The same as Kawamoto et al. and Mita et al. (7, 16)
Gene function annotation	15 594 genes are of function annotations	92.4%	80.3% in Kawamoto et al. and Mita et al. (7, 16)
	4937 gene feature annotations	22.0%	NA
	201 309 annotations from InterproScan	93.9%	NA
	8730 distinctive GO lists	86.9%	54.2% in Kawamoto et al. and Mita et al. (7, 16)
	16 028 correlated KEGG Gene IDs	96.4%	NA
	138 KEGG pathways	16.5%	NA
	16  320 correlated Entrez IDs	96.7%	NA
Biophysics and chemistry	2487 EC numbers	13.8%	NA
	329 biophysicochemical properties	0.6%	NA
	2445 catalytic activity annotations	12.0%	NA
	1743 cofactor information annotations	7.5%	NA
Topology	20 378 subcellular localization annotations	99.9%	NA
	2878 genes with transmembrane regions	17.0%	NA
	1960 genes with signal peptides	11.6%	NA
Proteomics and protein structure	12 394 real peptides from experiments validated 2999 protein coding genes	17.8%	NA
	9844 genes significantly correlated PDB protein structures	58.3%	NA
	1 730 892 correlated EMBL IDs	92.3%	NA
	17 762 correlated Gene3D IDs	57.2%	NA
	112 275 correlated Interpro IDs	86.9%	NA
	6257 CDD annotations	29.0%	NA
TFs	704 items	4.2%	NA
Repeat elements	571 401 segments, with 28 519 DNA transposons, 190 316 LINE, 13763 LTR and 179 435 SINE		In accordance with Osanai-Futahashi et al. (53)
Transcriptomics	306 samples from 41 projects		NA
Epigenomics	187 samples from 38 projects		NA
Populations genetics	Sliding widow analysis results based on 158 silkworm genomes		NA

‘Cov.’ denotes the coverage of genes with corresponding annotations in total genes. ‘Previous’ denotes the comparison of SGID and previous work. ‘NA’ denotes that related data is not available in previously built silkworm databases, such as SilkBase, Ensembl Silkworm and SilkDB.