| Primary Identifier | MGI:2663040 | Allele Type | Targeted |
| Attribute String | Null/knockout | Gene | Cldn5 |
| Transmission | Germline | Strain of Origin | 129S4/SvJae |
| Is Recombinase | false | Is Wild Type | false |
| molecularNote | The entire gene coding exon was replaced with a PGK-neo cassette via homologous recombination. Absence of gene expression in homozygous mutant embryos was confirmed by RT-PCR analysis of brain mRNA. |