This Nek8 mutation was identified in a screen of ENU-induced mutations and may be useful in studies of congenital heart disease.
The Jackson Laboratory cannot guarantee that cryorecovery of G1 sperm from the Bench to Bassinet (B2B) collection will be successful or that the anticipated phenotype or genotype will be obtained. The cryorecovery fee for this effort will not be refunded or prorated if the recovery is unsuccessful or is in any way unsatisfactory. Genotyping will be the responsibility of the Purchaser.
Cecilia Lo, Univ of Pittsburgh School of Medicine
A T-to-C mutation in Nek8 (NIMA (never in mitosis gene a)-related expressed kinase 8) was identified in an ENU screen for recessive cardiovascular development phenotypes in Dr. Cecilia Lo's laboratory, NHLBI Cardiovascular Development Consortium (CvDC). It was recovered from G1 sperm and associated with the phenotype described here. Because G1 sperm were cryopreserved, additional incidental mutations are also segregating in this strain.
Homozygotes demonstrate cardiovascular defects that involve heterotaxy with congenital heart disease such as hypoplastic right ventricle (RV) with small tricuspid valve. Mutants exhibit normal airway cilia motility.
This ENU-induced mutation was created and maintained on a C57BL/6J genetic background by the NHLBI Cardiovascular Development Consortium (CvDC), Bench to Bassinet Program. A T-to-C single point mutation at position 371 of the cDNA (c.T371C, NM_080849) was discovered through whole exome, high throughput sequencing. This mutation is predicted to cause an isoleucine to threonine amino acid substitution at position 124 of the encoded protein (p.I124T).
|Allele Name||Bench to Bassinet Program (B2B/CVDC), mutation 1449 Cecilia Lo|
|Allele Type||Chemically induced (ENU)|
|Allele Synonym(s)||Nek8Roc; Roc|
|Gene Symbol and Name||Nek8, NIMA (never in mitosis gene a)-related expressed kinase 8|
|Strain of Origin||C57BL/6J|
|General Note||Summative Diagnosis: |
Cardiovascular defects: Heterotaxy with congenital heart disease such as hypoplastic right ventricle (RV) with small tricuspid valve. Mutants exhibit normal airway cilia motility.