| Primary Identifier | MGI:2158944 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Sema3a |
| Inheritance Mode | Recessive | Transmission | Germline |
| Strain of Origin | (C57BL/6NCrlj x CBA/JNCrlj)F1 | Is Recombinase | false |
| Is Wild Type | false |
| description | Homozygous embryos are largely viable after birth but at 4 weeks after birth are about half the body weight of wild-type and have abnormalities in peripheral nerve projection. |
| molecularNote | This allele was generated from Sema3atm1Tyag by transient cre expression in TT-2 cells. Recombination produced three alleles, Sema3atm1.1Tyag, Sema3atm1.2Tyag and Sema3atm1.3Tyag. Sema3tm1.1Tyag has had the first exon, including the initiation codon, deleted. |