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Mammalian Phenotype Ontology Annotations
Query Results - Summary
Symbol
Name
ID 		Ccna1
cyclin A1
MGI:108042
8 phenotypes from 2 alleles in 3 genetic backgrounds
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Allelic Composition
Genetic Background		 Annotated Term Reference
Ccna1tm1Coll/Ccna1+
either: 129S/SvEv or (involves: 129S/SvEv * MF1) 		arrest of spermatogenesis J:89030
oligozoospermia J:89030
reduced male fertility J:89030
Ccna1tm1Coll/Ccna1tm1Coll
involves: 129S/SvEv * MF1 		arrest of spermatogenesis J:89030
decreased testis weight J:89030
male infertility J:89030
multinucleated giant male germ cells J:89030
Ccna1tm1Djw/Ccna1tm1Djw
involves: 129S7/SvEvBrd 		arrest of male meiosis J:51290
arrest of spermatogenesis J:51290
decreased testis weight J:51290
increased male germ cell apoptosis J:51290
male infertility J:51290
multinucleated giant male germ cells J:51290
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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Send questions and comments to User Support. 		last database update
09/30/2025
MGI 6.24 		The Jackson Laboratory