Uncharacterized protein C1orf131 is a protein that in humans is encoded by the geneC1orf131. The first ortholog of this protein was discovered in humans.[5][6] Subsequently, through the use of algorithms and bioinformatics, homologs of C1orf131 have been discovered in numerous species, and as a result, the name of the majority of the proteins in this protein family is Uncharacterized protein C1orf131 homolog.