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Mammalian Phenotype Ontology Annotations
Query Results - Summary
Symbol
Name
ID
Spaca4
sperm acrosome associated 4
MGI:1916613
6 phenotypes from 3 alleles in 3 genetic backgrounds
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Allelic Composition
Genetic Background
Annotated Term Reference
\Spaca4em1Pauli/\Spaca4em2Pauli
C57BL/6J-Spaca4em1Pauli/Spaca4em2Pauli
abnormal sperm-egg fusion J:311165
asthenozoospermia J:311165
decreased fertilization frequency J:311165
decreased litter size J:311165
reduced male fertility J:311165
normal reproductive system phenotype J:311165
\Spaca4em2Pauli/\Spaca4em2Pauli
C57BL/6J-Spaca4em2Pauli/Osb
abnormal sperm-egg fusion J:311165
\Spaca4tm1Osb/\Spaca4tm1Osb
involves: C57BL/6NSlc * DBA
asthenozoospermia J:311165
decreased fertilization frequency J:311165

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
03/25/2025
MGI 6.24
The Jackson Laboratory