| Primary Identifier | MGI:3056733 | Allele Type | Transgenic |
| Attribute String | Humanized sequence, Inserted expressed sequence | Gene | Tg(HBA-HBBs)41Paz |
| Strain of Origin | FVB/N | Is Recombinase | false |
| Is Wild Type | false |
| description | In conjunction with Hbatm1Paz and Hbbtm1Tmt, transgenic mice express exclusively human sickle hemoglobin. These mice do not express mouse Hba and Hbb, but do express human HBA and HBB. Although chronically anemic, most of these mice survive for 2 to 9 months and are fertile. A significant percentage of sickle cell mice do not survive to adulthood. These mice display the major genetic, hematologic and histopathologic features found in humans with sickle cell disease: irreversibly sickled red cells, anemia, and multiorgan pathology. |
| molecularNote | The transgene contains sequences encoding the human proteins HBA1 (hemoglobin, alpha 1), HBG2 (hemoglobin, gamma G, fetal component), HBG1 (hemoglobin, gamma A, fetal component), HBD (hemoglobin, delta), and HBB S (hemoglobin, beta, sickle allele), and the locus control region (LCR). The HBBS allele contains an A to T transversion mutation in the sixth codon of HBB which causes an amino acid change from Glu to Val. The transgene promoter is multiple: from alpha and beta globin human loci. Transgenic mice express human alpha hemoglobin, gamma hemoglobin, and sickle cell hemoglobin. |
