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Phenotypes Associated with This Genotype
Genotype
MGI:5425955
Allelic
Composition
A4gnttm1Jnaka/A4gnttm1Jnaka
Genetic
Background
B6.129S6-A4gnttm1Jnaka
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
A4gnttm1Jnaka mutation (0 available); any A4gnt mutation (17 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Hyperplasia, dysplasia and adenocarcinoma in A4gnttm1Jnaka/A4gnttm1Jnaka pyloric mucosa

digestive/alimentary system
• increased stomach mucosal thickness compared to in wild-type mice
• of pyloric epithelial cells in the gastric antrum
• in the antrum as early as postnatal week 5
• in the pyloric mucosa but not the fundic mucosa of the gastric corpus
• at 10 weeks, low-grade dysplasia and slight glandular distortion
• at 20 weeks, high-grade dysplasia with marked glandular complexity
• at 30 weeks, well-differentiated gastric adenocarcinoma invading the lamina propria
• at 50 weeks, all mice exhibit adenocarcinomas
• epithelial cells in the pyloric mucosa exhibit increased cell proliferation compared with wild-type cells
• in the gastric mucosa

neoplasm
• in the antrum as early as postnatal week 5
• in the pyloric mucosa but not the fundic mucosa of the gastric corpus
• at 10 weeks, low-grade dysplasia and slight glandular distortion
• at 20 weeks, high-grade dysplasia with marked glandular complexity
• at 30 weeks, well-differentiated gastric adenocarcinoma invading the lamina propria
• at 50 weeks, all mice exhibit adenocarcinomas

cellular
• of epithelial cells in the pyloric mucosa

cardiovascular system
• in the gastric mucosa

immune system
• in the gastric mucosa


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
03/31/2026
MGI 6.24
The Jackson Laboratory