Sypl1^{tm1b(KOMP)Wtsi}

Cre excision of the Sypl1tm1a(KOMP)Wtsi allele removed the promoter-driven neo and critical exon 3, leaving behind the lacZ reporter. Western blotting and immunofluorescence confirmed the absence of encoded protein in homozygous mutant testes. (J:200814, J:339267)