Table 2. Summary of MGD content, September 2017.

Genes and genome features with nucleotide sequence data	47 693
Genes with protein sequence data	24 317
Genes with human orthologs	17 089
Genes with rat orthologs	18 509
Genes with GO annotations	24 502
Total GO annotations	312 109
Mutant alleles in mice	51 378
Genes with mutant alleles in mice	12 401
Mouse QTL	6257
Genotypes with phenotype annotation (MP)	60 951
Total MP annotations	315 657
Mouse models (genotypes) associated with human diseases	6027
References in the MGD bibliography	237 578