CYB5R4, Official Symbol CYB5R4provided by HGNC Official Full Name cytochrome b5 reductase 4provided by HGNC Primary source HGNC:HGNC:20147 See related Ensembl:ENSG00000065615 MIM:608343; AllianceGenome:HGNC:20147 Gene type protein coding RefSeq status VALIDATED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as NCB5OR; cb5/cb5R; dJ676J13.1 Summary NCB5OR is a flavohemoprotein that contains functional domains found in both cytochrome b5 (CYB5A; MIM 613218) and CYB5 reductase (CYB5R3; MIM 613213) (Zhu et al., 1999 [PubMed 10611283]).[supplied by OMIM, Jan 2010] Expression Broad expression in testis (RPKM 17.2), appendix (RPKM 16.0) and 24 other tissues See more Orthologs all