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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tgfawa1
waved 1
MGI:1856388
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Tgfawa1/Tgfawa1 Not Specified MGI:2174771


Genotype
MGI:2174771
hm1
Allelic
Composition
Tgfawa1/Tgfawa1
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tgfawa1 mutation (2 available); any Tgfa mutation (17 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• one day after birth an inflammatory exudate covers the eye opening and falls away by post partum day 4
• the exudate is replaced by white excrescence which usually disappears by post partum day 18
• infiltrate of polymorphonuclear leucocytes are seen
• histological preparations of 4 day old mice show enlarged nuclei in this area and there is an infiltration of polymorphonuclear leucocytes
• seen in histological examination of E17 and E18 mice
• incipient opacity diminishes with age
• due to environmental injury caused by eyes being open at birth
• confirmed by examination of coronal sections of E17 and E18 embryos
• one or both eyelids may be open although some mice have normal eyes

immune system
• one day after birth an inflammatory exudate covers the eye opening and falls away by post partum day 4
• the exudate is replaced by white excrescence which usually disappears by post partum day 18
• infiltrate of polymorphonuclear leucocytes are seen

integument
• all hair types form loose C-and S-shaped curves, commonly with curved tips
• affected mice appear abnormal at 7 or 8 days of age
• newly erupted hair tips on the dorsum incline towards the mid-line rather than straight backwards
• obvious at 10 days of age
• extreme waviness of the first coat is lost in later hair generations but the coat never looks normal
• there is local rippling most common basally with or without curvature
• the result of growth from curved follicles
• basal part of these hairs are often thick and the club itself short and squat
• local septulate areas occur in all three segments
• in most affected hairs the second and third segments are very short,broad and curved
• follicles grow curved resulting in curvature to the hair
• curvature in guard hair follicles is extreme at 3 to 4 days of age compared with normal and they grow backwards into the adipose layer
• follicle arrangement in 5 day old mice is disorganized
• recognized between birth and 3 days as shorter and irregularly curved compared with normal
• most of vibrissae become straighter in older mice





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last database update
04/16/2024
MGI 6.23
The Jackson Laboratory