1 RNAcentral http://rnacentral.org/rna/<?>
2 Rfam http://rfam.org/family/<?>
3 HGNC https://www.genenames.org/cgi-bin/gene_symbol_report?hgnc_id=HGNC:<?>
4 MGI http://www.informatics.jax.org/marker/MGI:<?>
5 EntrezGene https://www.ncbi.nlm.nih.gov/gene/<?>