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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Acvrl1tm2.1Spo
targeted mutation 2.1, S Paul Oh
MGI:4398901
Summary 4 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Acvrl1tm2.1Spo/Acvrl1tm2.1Spo involves: 129 * C57BL/6 * FVB/N MGI:4398916
cn2
Acvrl1tm2.1Spo/Acvrl1tm2.1Spo involves: 129 MGI:5501106
cn3
Acvrl1tm2.1Spo/Acvrl1tm2.1Spo
Gt(ROSA)26Sortm1(cre/ERT)Nat/Gt(ROSA)26Sor+
involves: 129 * 129S1/Sv * 129X1/SvJ MGI:5431572
cn4
Acvrl1tm2.1Spo/Acvrl1tm2.1Spo
Tg(Acvrl1-cre)L1Spo/0
involves: 129 * FVB MGI:5431571


Genotype
MGI:4398916
hm1
Allelic
Composition
Acvrl1tm2.1Spo/Acvrl1tm2.1Spo
Genetic
Background
involves: 129 * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Acvrl1tm2.1Spo mutation (0 available); any Acvrl1 mutation (6 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice are viable




Genotype
MGI:5501106
cn2
Allelic
Composition
Acvrl1tm2.1Spo/Acvrl1tm2.1Spo
Genetic
Background
involves: 129
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Acvrl1tm2.1Spo mutation (0 available); any Acvrl1 mutation (6 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• mice co-injected with a Cre recombinase and a VEGF expressing adenovirus exhibit malformed vessels and increased cerebrovascular density in the brain at the injection site resembling arteriovenous malformations
• co-injection of a Cre recombinase and a VEGF expressing adenovirus induces more cerebrovascular dysplasia in mutants than in similarly injected Engtm2.1Hma homozygotes, however gene deletion efficiency is higher in this mutant and when gene deletion efficiency is the same in both mutants, then this mutant shows fewer dysplastic vessels per gene copy than the Eng mutant
• however, mice co-injected with a Cre recombinase and a VEGF expressing adenovirus exhibit a similar degree of angiogenesis as in wild-type mice injected with the VEGF adenovirus

nervous system
• mice co-injected with a Cre recombinase and a VEGF expressing adenovirus exhibit malformed vessels and increased cerebrovascular density in the brain at the injection site resembling arteriovenous malformations
• co-injection of a Cre recombinase and a VEGF expressing adenovirus induces more cerebrovascular dysplasia in mutants than in similarly injected Engtm2.1Hma homozygotes, however gene deletion efficiency is higher in this mutant and when gene deletion efficiency is the same in both mutants, then this mutant shows fewer dysplastic vessels per gene copy than the Eng mutant
• however, mice co-injected with a Cre recombinase and a VEGF expressing adenovirus exhibit a similar degree of angiogenesis as in wild-type mice injected with the VEGF adenovirus

Mouse Models of Human Disease
OMIM ID Ref(s)
Arteriovenous Malformations of the Brain 108010 J:196810




Genotype
MGI:5431572
cn3
Allelic
Composition
Acvrl1tm2.1Spo/Acvrl1tm2.1Spo
Gt(ROSA)26Sortm1(cre/ERT)Nat/Gt(ROSA)26Sor+
Genetic
Background
involves: 129 * 129S1/Sv * 129X1/SvJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Acvrl1tm2.1Spo mutation (0 available); any Acvrl1 mutation (6 available)
Gt(ROSA)26Sortm1(cre/ERT)Nat mutation (1 available); any Gt(ROSA)26Sor mutation (310 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• adult mice administered with tamoxifen die 9-21 days after a single injection
• tamoxifen treated females show a shorter survival span than males

growth/size/body
• tamoxifen treated mutants show signs of illness such as slow movements, weight loss, pale paws, and low pO2 levels from 8-10 days after tamoxifen injection

cardiovascular system
• pulmonary arteries and veins are dilated
• high vascular permeability
• uterus shows signs of arteriovenous malformations in tamoxifen treated mutants
• mutants bearing excisional wounds on the dorsal skin and ear and treated with tamoxifen form arteriovenous shunts in the blood vessels near the wounds
• arteriovenous malformations in the GI tract of tamoxifen treated mutants are located in the Peyer's patches of small intestine and appendix
• in tamoxifen treated mutants
• in tamoxifen treated mutants
• tamoxifen treated mutants show signs of hemorrhages in the lungs

digestive/alimentary system
• arteriovenous malformations in the GI tract of tamoxifen treated mutants are located in the Peyer's patches of small intestine and appendix
• tamoxifen treated mutants exhibit darkened feces indicative of the presence of blood

hematopoietic system
• in tamoxifen treated mutants
• tamoxifen treated mutants exhibit reduced hematocrit

respiratory system
• pulmonary arteries and veins are dilated
• high vascular permeability
• tamoxifen treated mutants show signs of hemorrhages in the lungs

Mouse Models of Human Disease
OMIM ID Ref(s)
Telangiectasia, Hereditary Hemorrhagic, Type 2; HHT2 600376 J:154620




Genotype
MGI:5431571
cn4
Allelic
Composition
Acvrl1tm2.1Spo/Acvrl1tm2.1Spo
Tg(Acvrl1-cre)L1Spo/0
Genetic
Background
involves: 129 * FVB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Acvrl1tm2.1Spo mutation (0 available); any Acvrl1 mutation (6 available)
Tg(Acvrl1-cre)L1Spo mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• some die by P5

cardiovascular system
• blood vessels in the superficial layer of the GI tract appear to be dilated, disorganized and tortuous
• dilated, tortuous, irregular, and disorganized vessels in the small intestine
• mutant vessels show peculiar looping at the distal tip of blood vessels
• however, vascular abnormalities are not seen in the skin, heart, muscle, kidney, or large intestine
• blood vessels in the superficial layer of the brain appear to be dilated, disorganized and tortuous
• blood vessels in the superficial layer of the lung appear to be dilated, disorganized and tortuous
• abnormal looping vessels are seen in the lung
• dilated, irregular and disorganized vessels in the lungs with uneven and discontinuous smooth muscle layers
• highly permeable and leaky vessels in the lungs
• looping vessels consist of numerous arteriovenous fistulas
• presence of arteriovenous shunts as indicated by the presence of dye in both the venous and arterial branches
• arterioventricular shunting and diminished perfusion to distal microvessels is seen with dye injection
• lungs have numerous blood vessels with abnormal morphology and anterioventricular connections
• hemorrhages in the brain, lung, and GI tract
• dilated and hemorrhagic vessels in various brain areas, including the hippocampus
• dilated, convoluted, and tortuous vessels with signs of hemorrhage in the superficial layer of the lung

digestive/alimentary system

nervous system
• blood vessels in the superficial layer of the brain appear to be dilated, disorganized and tortuous

respiratory system
• blood vessels in the superficial layer of the lung appear to be dilated, disorganized and tortuous
• abnormal looping vessels are seen in the lung
• dilated, irregular and disorganized vessels in the lungs with uneven and discontinuous smooth muscle layers
• highly permeable and leaky vessels in the lungs
• dilated, convoluted, and tortuous vessels with signs of hemorrhage in the superficial layer of the lung

Mouse Models of Human Disease
OMIM ID Ref(s)
Telangiectasia, Hereditary Hemorrhagic, Type 2; HHT2 600376 J:154620





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last database update
05/17/2016
MGI 6.03
The Jackson Laboratory