
-   GeneCards (human): [https://www.genecards.org/cgi-bin/carddisp.pl?gene=NPPA](https://www.genecards.org/cgi-bin/carddisp.pl?gene=NPPA)
-   Harmanizome (human): [https://maayanlab.cloud/Harmonizome/gene/NPPA](https://maayanlab.cloud/Harmonizome/gene/NPPA)
-   NCBI (human): [https://www.ncbi.nlm.nih.gov/gene/4878](https://www.ncbi.nlm.nih.gov/gene/4878)
-   NCBI (rat): [https://www.ncbi.nlm.nih.gov/gene/24602](https://www.ncbi.nlm.nih.gov/gene/24602)
-   Ensemble (human): [https://useast.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000175206](https://useast.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000175206)
-   Ensemble (rat): [https://useast.ensembl.org/Rattus_norvegicus/Gene/Summary?g=ENSRNOG00000008176](https://useast.ensembl.org/Rattus_norvegicus/Gene/Summary?g=ENSRNOG00000008176)
-   Rat Genome Database: [https://rgd.mcw.edu/rgdweb/report/gene/main.html?id=3193](https://rgd.mcw.edu/rgdweb/report/gene/main.html?id=3193)
-   Uniprot (human): [https://www.uniprot.org/uniprotkb/P01160](https://www.uniprot.org/uniprotkb/P01160)
-   Uniprot (rat): [https://www.uniprot.org/uniprotkb/P01161](https://www.uniprot.org/uniprotkb/P01161)
-   Wikigenes (human): [https://www.wikigenes.org/e/gene/e/4878.html](https://www.wikigenes.org/e/gene/e/4878.html)
-   Wikigenes (rat): [https://www.wikigenes.org/e/gene/e/24602.html](https://www.wikigenes.org/e/gene/e/24602.html)
-   PDB (rat): [https://www.rcsb.org/structure/1T34](https://www.rcsb.org/structure/1T34), [https://www.rcsb.org/structure/7BRG](https://www.rcsb.org/structure/7BRG), [https://www.rcsb.org/structure/7BRL](https://www.rcsb.org/structure/7BRL)
-   PDB (human): [https://www.rcsb.org/structure/1ANP](https://www.rcsb.org/structure/1ANP), [https://www.rcsb.org/structure/1YK0](https://www.rcsb.org/structure/1YK0), [https://www.rcsb.org/structure/7BRH](https://www.rcsb.org/structure/7BRH), [https://www.rcsb.org/structure/7BRJ](https://www.rcsb.org/structure/7BRJ), [https://www.rcsb.org/structure/7BRK](https://www.rcsb.org/structure/7BRK)
-   PDB (mouse): none
-   Alphafold (rat): [https://alphafold.ebi.ac.uk/entry/P01161](https://alphafold.ebi.ac.uk/entry/P01161)
-   Alphafold (human): [https://alphafold.ebi.ac.uk/entry/P01160](https://alphafold.ebi.ac.uk/entry/P01160)
