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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Hps4le
light-ear
MGI:1856931
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Hps4le/Hps4le B6.C3-Pde6brd1 Hps4le MGI:3587187
hm2
Hps4le/Hps4le involves: C3H/HeJ MGI:3587186
cx3
Hps4le/Hps4le
Pde6brd1/Pde6brd1
B6.C3-Pde6brd1 Hps4le MGI:3803329
cx4
Hps4le/Hps4le
Pde6brd1/Pde6brd1
B6.C3-Pde6brd1 Hps4le/J MGI:5700318


Genotype
MGI:3587187
hm1
Allelic
Composition
Hps4le/Hps4le
Genetic
Background
B6.C3-Pde6brd1 Hps4le
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hps4le mutation (3 available); any Hps4 mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• small elevations seen in liver and spleen (J:5967)
• retained by cells rather than being secreted (J:61552)
• elevated levels of enzymes in cells in culture (J:61552)
• thrombin stimulation of platelets results in approximately double the normal levels of secretion of beta-glucaronidase and beta-galactosidase

renal/urinary system
• Testosterone induced excretion of beta-galactosidase only one third level in controls and kidney levels are 4X control levels, synthesis increased 5X (J:5967)
• of lysosomal enzymes (J:7416)
• results in accumulation of lysosomal enzymes in proximal tubule cells of the kidney (J:7416)

pigmentation
• giant melanosomes present
• reduced number of melanosomes and reduced pigment content in remaining melanosomes
• increased proportion of immature forms

vision/eye
• giant melanosomes present
• reduced number of melanosomes and reduced pigment content in remaining melanosomes

hematopoietic system
• decreased numbers of large dense granules per platelet
• 4.5 fold less serotonin present (J:7327)
• uptake deficient (J:7327)
• platelet serotonin level is also lower than that of control when fed an atherogenic diet (J:29748)
• hypersecretion of lysosomal enzymes after thrombin stimulation

homeostasis/metabolism
• 4.5 fold less serotonin present (J:7327)
• uptake deficient (J:7327)
• platelet serotonin level is also lower than that of control when fed an atherogenic diet (J:29748)
• hypersecretion of lysosomal enzymes after thrombin stimulation
• prolonged bleeding times with relatively normal platelet numbers
• Testosterone induced excretion of beta-galactosidase only one third level in controls and kidney levels are 4X control levels, synthesis increased 5X (J:5967)
• of lysosomal enzymes (J:7416)
• results in accumulation of lysosomal enzymes in proximal tubule cells of the kidney (J:7416)

cardiovascular system
• on an atherogenic diet homozygotes develop fewer aortic lesions and smaller lesions than C57BL/6J controls
• 56% of homozygotes survive to 48 weeks of age on an atherogenic diet, when no C57BL/6J controls survive, and, although there are significant atherogenic lesions in these 48 week old homozygotes, the lesions are smaller than those in 39 week old C57BL/6J controls fed the atherosclerotic diet




Genotype
MGI:3587186
hm2
Allelic
Composition
Hps4le/Hps4le
Genetic
Background
involves: C3H/HeJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hps4le mutation (3 available); any Hps4 mutation (42 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
• reduced eye pigment at birth but eyes darkens with age
• on a nonagouti or agouti background this genotype is indistinguishable from homozygous Hps1ep

pigmentation
• paler coat color in juveniles normalizes with age
• on a nonagouti or agouti background this genotype is indistinguishable from homozygous Hps1ep
• reduced skin pigmentation of ears is noticeble at 3-4 days of age
• reduced pigment in pinna of ears
• on a nonagouti or agouti background this genotype is indistinguishable from homozygous Hps1ep
• reduced eye pigment at birth but eyes darkens with age
• on a nonagouti or agouti background this genotype is indistinguishable from homozygous Hps1ep
• eumelanin granules in hair smaller than normal

hearing/vestibular/ear
• reduced pigment in pinna of ears
• on a nonagouti or agouti background this genotype is indistinguishable from homozygous Hps1ep

craniofacial
• reduced pigment in pinna of ears
• on a nonagouti or agouti background this genotype is indistinguishable from homozygous Hps1ep

integument
• paler coat color in juveniles normalizes with age
• on a nonagouti or agouti background this genotype is indistinguishable from homozygous Hps1ep
• reduced skin pigmentation of ears is noticeble at 3-4 days of age
• reduced pigment in pinna of ears
• on a nonagouti or agouti background this genotype is indistinguishable from homozygous Hps1ep

growth/size/body
• reduced pigment in pinna of ears
• on a nonagouti or agouti background this genotype is indistinguishable from homozygous Hps1ep




Genotype
MGI:3803329
cx3
Allelic
Composition
Hps4le/Hps4le
Pde6brd1/Pde6brd1
Genetic
Background
B6.C3-Pde6brd1 Hps4le
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hps4le mutation (3 available); any Hps4 mutation (42 available)
Pde6brd1 mutation (41 available); any Pde6b mutation (122 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
vision/eye
N
• mice exhibit a normal proportion of bipolar cells to Muller cells during postnatal development

craniofacial
• mice exhibit light ears

hearing/vestibular/ear
• mice exhibit light ears

pigmentation
• mice exhibit light ears

integument
• mice exhibit light ears

growth/size/body
• mice exhibit light ears




Genotype
MGI:5700318
cx4
Allelic
Composition
Hps4le/Hps4le
Pde6brd1/Pde6brd1
Genetic
Background
B6.C3-Pde6brd1 Hps4le/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hps4le mutation (3 available); any Hps4 mutation (42 available)
Pde6brd1 mutation (41 available); any Pde6b mutation (122 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
hematopoietic system
• platelets show impaired alpha granule content release in response to low-dose thrombin stimulation
• agonist-dependent lysosome release in platelets is impaired
• stimulation with a low dose of thrombin elicits a mutated release of lysosomal enzymes from platelets
• mice exhibit abnormal thrombus formation during laser-induced blood vessel damage, with total platelet accumulation severely attenuated

homeostasis/metabolism
• platelets show impaired alpha granule content release in response to low-dose thrombin stimulation
• agonist-dependent lysosome release in platelets is impaired
• stimulation with a low dose of thrombin elicits a mutated release of lysosomal enzymes from platelets
• mice exhibit abnormal thrombus formation during laser-induced blood vessel damage, with total platelet accumulation severely attenuated

Mouse Models of Human Disease
DO ID OMIM ID(s) Ref(s)
Hermansky-Pudlak syndrome 4 DOID:0060542 OMIM:614073
J:221384





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last database update
10/29/2024
MGI 6.24
The Jackson Laboratory