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Phenotypes Associated with This Genotype
Genotype
MGI:3582580
Allelic
Composition
Oclntm2Sts/Oclntm2Sts
Genetic
Background
involves: 129S4/SvJae * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Oclntm2Sts mutation (0 available); any Ocln mutation (33 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
digestive/alimentary system
• the striated ducts cells lack characteristic cytoplasmic granules
• at 3 - 6 weeks of age a marked loss of differentiation of the epithelium in gastric glands is seen with loss of chief cells
• at 3 - 6 weeks of age a marked loss of differentiation of the epithelium in gastric glands is seen with severely decreased numbers of parietal cells
• at 3 - 6 weeks of age a marked loss of differentiation of the epithelium in gastric glands is seen with loss of chief cells, severely decreased numbers of parietal cells and presence of abnormal mucoid-containing cells
• at 40 weeks of age in most of the stomach fundus the epithelium of the gastric glands displays cellular crowding, nuclear pleomorphism, increased nuclear to cytoplasmic ratio, and loss of nuclear polarity
• at 40 weeks of age in some portions of the stomach fundus gastric glands resemble pyloric-like glands with numerous mucoid-containing cells
• however, no malformations or functional defects were detected in the tight junctions of the intestinal epithelium
• by 40 weeks of age the mucosa appears thickened
• gastritis is seen around 10 weeks of age and becomes severe by 28 weeks of age

immune system
• gastritis is seen around 10 weeks of age and becomes severe by 28 weeks of age

endocrine/exocrine glands
• the striated ducts cells lack characteristic cytoplasmic granules
• at 3 - 6 weeks of age a marked loss of differentiation of the epithelium in gastric glands is seen with loss of chief cells
• at 3 - 6 weeks of age a marked loss of differentiation of the epithelium in gastric glands is seen with severely decreased numbers of parietal cells
• at 40 - 60 weeks of age atrophy of the seminiferous tubules is seen with atrophied tubules being devoid of germ cells

growth/size/body
• after birth the body weights of homozygotes begins to lag behind wild-type mice and by 8 weeks of age male and female homozygotes are 72% and 77% of normal weight, respectively

behavior/neurological
• females do not suckle their litters

reproductive system
• at 40 - 60 weeks of age atrophy of the seminiferous tubules is seen with atrophied tubules being devoid of germ cells
• males but not females are infertile

nervous system
• progressive accumulation of mineral deposits is seen beginning at 9 weeks of age resulting in concentric, often laminated deposits
• progressive accumulation of mineral deposits is seen beginning at 9 weeks of age resulting in concentric, often laminated deposits

limbs/digits/tail
• compact bone layer is significantly thinner

skeleton
• compact bone layer is significantly thinner

homeostasis/metabolism
N
• despite calcification in the brain and thinning of compact bone in the femur serum and urine levels of calcium and phosphate are normal


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
04/16/2024
MGI 6.23
The Jackson Laboratory