About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tg(Acvrl1-cre)L1Spo
transgene insertion L1, S Paul Oh
MGI:4398903
Summary 5 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Acvrl1tm2Spo/Acvrl1tm2Spo
Tg(Acvrl1-cre)L1Spo/0
involves: 129 * 129S4/SvJae * C57BL/6 * FVB/N MGI:4398918
cn2
Tgfbr1tm1.1Karl/Tgfbr1tm1.1Karl
Tg(Acvrl1-cre)L1Spo/0
involves: 129 * FVB MGI:4398919
cn3
Acvrl1tm2.1Spo/Acvrl1tm2.1Spo
Tg(Acvrl1-cre)L1Spo/0
involves: 129 * FVB MGI:5431571
cn4
Bmpr2tm1.1Enl/Bmpr2tm1.1Enl
Tg(Acvrl1-cre)L1Spo/0
involves: 129S4/SvJae * FVB MGI:5430750
cn5
Tgfbr2tm1.2Hlm/Tgfbr2tm1.2Hlm
Tg(Acvrl1-cre)L1Spo/0
involves: 129S6/SvEvTac * FVB/N MGI:4398920


Genotype
MGI:4398918
cn1
Allelic
Composition
Acvrl1tm2Spo/Acvrl1tm2Spo
Tg(Acvrl1-cre)L1Spo/0
Genetic
Background
involves: 129 * 129S4/SvJae * C57BL/6 * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Acvrl1tm2Spo mutation (0 available); any Acvrl1 mutation (27 available)
Tg(Acvrl1-cre)L1Spo mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging

cardiovascular system
• the vascular smooth muscle cell layers of the dorsal aorta are more compact than in wild-type mice
• lung vasculature are dilated, tortuous, and irregular unlike in wild-type mice
• lung blood vessels exhibit thinning and irregular vascular smooth muscle cell layers compared to in wild-type mice
• from E15.5 to E17.5, yolk sac blood vessels bulge and are larger than the umbilical vessels unlike in wild-type mice
• extraembryonic vessels exhibit increased lumen diameter and decreased wall thickness compared to in wild-type vessels
• vitelline vessels are dilated, convoluted, tortuous, and also make abnormal direct connections between arteries and veins without connecting capillary beds unlike wild-type vessels
• the vascular smooth muscle cell layers of the pulmonary vessels, vitelline vessels, and the dorsal aorta are more compact than in wild-type mice
• vitelline vessels are dilated, convoluted, tortuous, and also make abnormal direct connections between arteries and veins without connecting capillary beds unlike wild-type vessels
• pulmonary and vitelline vessels

embryo
• from E15.5 to E17.5, yolk sac blood vessels bulge and are larger than the umbilical vessels unlike in wild-type mice
• extraembryonic vessels exhibit increased lumen diameter and decreased wall thickness compared to in wild-type vessels
• vitelline vessels are dilated, convoluted, tortuous, and also make abnormal direct connections between arteries and veins without connecting capillary beds unlike wild-type vessels

respiratory system
• lung vasculature are dilated, tortuous, and irregular unlike in wild-type mice
• lung blood vessels exhibit thinning and irregular vascular smooth muscle cell layers compared to in wild-type mice

muscle
• the vascular smooth muscle cell layers of the pulmonary vessels, vitelline vessels, and the dorsal aorta are more compact than in wild-type mice




Genotype
MGI:4398919
cn2
Allelic
Composition
Tgfbr1tm1.1Karl/Tgfbr1tm1.1Karl
Tg(Acvrl1-cre)L1Spo/0
Genetic
Background
involves: 129 * FVB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(Acvrl1-cre)L1Spo mutation (0 available)
Tgfbr1tm1.1Karl mutation (1 available); any Tgfbr1 mutation (36 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice are viable and exhibit normal vasculature

cardiovascular system
N
• mice exhibit normal vasculature




Genotype
MGI:5431571
cn3
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 (27 available)
Tg(Acvrl1-cre)L1Spo mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Arteriovenous malformations in the brain, lung, and GI tract of Acvrl1tm2.1Spo/Acvrl1tm2.1Spo Tg(Acvrl1-cre)L1Spo/0 mice

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




Genotype
MGI:5430750
cn4
Allelic
Composition
Bmpr2tm1.1Enl/Bmpr2tm1.1Enl
Tg(Acvrl1-cre)L1Spo/0
Genetic
Background
involves: 129S4/SvJae * FVB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bmpr2tm1.1Enl mutation (1 available); any Bmpr2 mutation (46 available)
Tg(Acvrl1-cre)L1Spo mutation (0 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cardiovascular system
• mutants with pulmonary hypertension exhibit an increased number of alpha-smooth muscle actin-positive (alphaSMA+) distal pulmonary arteries
• mutants with pulmonary hypertension exhibit an increase in medial wall thickness of alphaSMA+ small pulmonary arteries
• mutants exhibit a thickening of alphaSMA+ cell layers in small arteries of the pulmonary hypertension lungs and some arteries appear occluded, resembling the concentric vascular lesions in human pulmonary arterial hypertension
• 50% of mutant lungs show focal leukocyte infiltrations surrounding pulmonary vessels that are not seen in controls; infiltration is more frequent in mice with pulmonary hypertension than in mutants with lower right ventricular systolic pressure
• most of the infiltrating cells are CD68+ monocyte/macrophages
• ratio of right ventricle to left ventricle plus septum is higher in mutants with pulmonary hypertension than in controls, indicating right ventricle hypertrophy
• mutants exhibit a higher right ventricular systolic pressure than controls
• some mutants develop pulmonary hypertension (ventricular systolic pressure > 30 mm Hg)
• smooth muscle cells in distal pulmonary arteries exhibit increased proliferation index

growth/size/body
• ratio of right ventricle to left ventricle plus septum is higher in mutants with pulmonary hypertension than in controls, indicating right ventricle hypertrophy

cellular
• smooth muscle cells in distal pulmonary arteries exhibit increased proliferation index
• endothelial cells in distal pulmonary arteries exhibit increased proliferation index

homeostasis/metabolism
• 53% of pulmonary hypertension lungs exhibit in situ thrombosis, with lumens of some affected vessels partially or completely occluded by fibrin(ogen)+ thrombi

muscle
• ratio of right ventricle to left ventricle plus septum is higher in mutants with pulmonary hypertension than in controls, indicating right ventricle hypertrophy
• smooth muscle cells in distal pulmonary arteries exhibit increased proliferation index

respiratory system
• 50% of mutant lungs show focal leukocyte infiltrations surrounding pulmonary vessels that are not seen in controls; infiltration is more frequent in mice with pulmonary hypertension than in mutants with lower right ventricular systolic pressure
• most of the infiltrating cells are CD68+ monocyte/macrophages
• endothelial cells in distal pulmonary arteries exhibit increased proliferation index




Genotype
MGI:4398920
cn5
Allelic
Composition
Tgfbr2tm1.2Hlm/Tgfbr2tm1.2Hlm
Tg(Acvrl1-cre)L1Spo/0
Genetic
Background
involves: 129S6/SvEvTac * FVB/N
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(Acvrl1-cre)L1Spo mutation (0 available)
Tgfbr2tm1.2Hlm mutation (0 available); any Tgfbr2 mutation (40 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• mice are viable and exhibit normal vasculature

cardiovascular system
N
• mice exhibit normal vasculature





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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
11/19/2024
MGI 6.24
The Jackson Laboratory