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Phenotypes Associated with This Genotype
Genotype
MGI:3836772
Allelic
Composition
Hyal2tm1.1Bfla/Hyal2tm1.1Bfla
Genetic
Background
involves: 129P2/OlaHsd * BALB/c * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hyal2tm1.1Bfla mutation (0 available); any Hyal2 mutation (19 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• survival appears lower than in wild-type mice over the 18 month observation period
• survival appears lower than in wild-type mice over the 18 month observation period
• fewer than expected mice survive beyond weaning (18% instead of the expected 25%)

hematopoietic system
• mild

skeleton
• newborn and adult mice exhibit an extra diamond-shaped bony structure inserted between frontal and nasal bones, deforming the anterior part of the metopic suture and the frontonasal junction unlike in wild-type mice
• however, mice lack this extra structure at E17.5
• at 2 to 3 months, the interorbitary space is widened in males compared to in wild-type mice
• the first two cervical vertebrae are abnormally shaped with enlarged bodies and apophyses unlike in wild-type mice
• the C1 C2 junction is abnormal
• fused with C1 instead of C2

homeostasis/metabolism
• plasma hyaluronic acid concentrations are elevated 10-fold compared to in wild-type mice
• plasma lactate dehydrogenase levels are elevated
• mice exhibit increased iron deposits in the proximal tubules unlike in wild-type mice

liver/biliary system

renal/urinary system
• mice exhibit increased iron deposits in the proximal tubules unlike in wild-type mice

immune system

craniofacial
• newborn and adult mice exhibit an extra diamond-shaped bony structure inserted between frontal and nasal bones, deforming the anterior part of the metopic suture and the frontonasal junction unlike in wild-type mice
• however, mice lack this extra structure at E17.5
• at 2 to 3 months, the interorbitary space is widened in males compared to in wild-type mice
• at 3 to 4 weeks

vision/eye
• at 2 to 3 months, the interorbitary space is widened in males compared to in wild-type mice

growth/size/body
• at 3 to 4 weeks


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
05/26/2026
MGI 6.24
The Jackson Laboratory