causes or contributes to condition contributes to genotype causes or contributes to molecular phenotype Other HBB Variants HBB, ASP73ASN Negligable A mutation where the aspartic acid in position 73 in the primary sequence of a beta-chain produced by the HBB gene is replaced by asparagine. This mutation is found as a single alteration in Hemoglobin Korle Bu and is one of the two contributing mutations to the production of Hemoglobin C-Harlem. Asp73Asn SCDO (Jade Hotchkiss) http://www.bloodjournal.org/content/bloodjournal/46/3/363.full.pdf?sso-checked=true D73N Request inclusion into relevant ontology Hemoglobin Genotype S/C-Harlem Hemoglobin C-Harlem Sickle Cell Disease-S/C-Harlem Hemoglobin C-Harlem Disease