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Symbol
Name
ID
Jak2
Janus kinase 2
MGI:96629
Phenotype annotations related to hematopoietic system
*Aspects of the system are reported to show a normal phenotype.
Darker colors indicate more annotations
Human Phenotypes
Abnormal bleeding
Epistaxis
Gastrointestinal hemorrhage
Cerebral hemorrhage
Prolonged bleeding time
Bruising susceptibility
Purpura
Abnormal bone marrow cell morphology
Abnormal megakaryocyte morphology
Increased megakaryocyte count
Increased micromegakaryocyte count
Increased multinucleated megakaryocyte count
Megakaryocyte nucleus hyperlobulation
Myelofibrosis
Increased hematocrit
Abnormal hemoglobin
Increased circulating hemoglobin concentration
Polycythemia
Increased red blood cell mass
Leukocytosis
Hemophagocytosis
Acute leukemia
Acute myeloid leukemia
Chronic myelogenous leukemia
Myeloproliferative disorder
Abnormal thrombosis
Arterial thrombosis
Peripheral thrombosis
Thromboembolism
Venous thrombosis
Hepatic vein thrombosis
Abnormality of thrombocytes
Impaired ADP-induced platelet aggregation
Impaired collagen-induced platelet aggregation
Impaired epinephrine-induced platelet aggregation
Abnormal platelet morphology
Thrombocytopenia
Thrombocytosis
Extramedullary hematopoiesis
Myelodysplasia
Splenomegaly
Disease(s) Associated with JAK2
acute myeloid leukemia
essential thrombocythemia
familial erythrocytosis 1
myelofibrosis
polycythemia vera

Mouse Phenotypes
hematopoietic system phenotype
abnormal megakaryocyte differentiation
abnormal embryonic erythropoiesis
enlarged spleen
increased spleen weight
abnormal definitive hematopoiesis
abnormal common myeloid progenitor cell morphology
absent common myeloid progenitor cells
abnormal erythropoiesis
abnormal myelopoiesis
myeloid hyperplasia
extramedullary hematopoiesis
anemia
impaired hematopoiesis
abnormal bone marrow cell morphology/development
decreased bone marrow cell number
abnormal megakaryocyte morphology
increased megakaryocyte cell number
decreased erythroid progenitor cell number
increased erythroid progenitor cell number
increased megakaryocyte progenitor cell number
decreased erythroblast number
abnormal erythrocyte morphology
decreased erythrocyte cell number
increased erythrocyte cell number
polycythemia
decreased hematocrit
increased hematocrit
decreased hemoglobin content
increased hemoglobin content
decreased mean corpuscular volume
anisocytosis
increased number of Howell-Jolly bodies
microcytosis
poikilocytosis
polychromatophilia
increased neutrophil cell number
increased granulocyte number
thrombocytosis
increased mean platelet volume
giant platelets
decreased B cell number
increased lymphocyte cell number
increased monocyte cell number
decreased leukocyte cell number
increased leukocyte cell number
reticulocytosis
decreased hematopoietic stem cell number
increased hematopoietic stem cell number
abnormal spleen morphology
abnormal spleen red pulp morphology
increased spleen red pulp amount
abnormal spleen white pulp morphology
decreased spleen white pulp amount
spleen fibrosis
abnormal hematopoietic system physiology
abnormal bone marrow cell physiology
enhanced megakaryocyte emperipolesis
Availability Mouse Genotype
Jak2m1Dlbr/Jak2m1Dlbr
Jak2tm1.1Jlvl/Jak2tm1.1Jlvl
Jak2tm1.1Kuw/Jak2tm1.1Kuw
Jak2tm1Jni/Jak2tm1Jni
Jak2tm1Kf/Jak2tm1Kf
Jak2tm1Kpf/Jak2tm1Kpf
Jak2tm2.1Kpf/Jak2tm2.1Kpf
Jak2m1Dlbr/Jak2+ *
Jak2m1Dlbr/Jak2tm1Jni
Jak2tm1.2Ble/Jak2+ *
Jak2tm1Jni/Jak2+ *
Jak2tm1Kf/Jak2+ *
Jak2tm2.2Jlvl/Jak2+
Tg(H2-Kb-Jak2*V617F)2Shmd/0
Jak2tm1Mohi/Jak2tm1Mohi
Tg(Mx1-cre)1Cgn/0  (conditional)
Jak2tm1.1Ble/Jak2+
Commd10Tg(Vav1-icre)A2Kio/Commd10+  (conditional)
Jak2tm1(JAK2)Argr/Jak2+
Dppa3tm1(cre)Peli/Dppa3+  (conditional)
Jak2tm1(JAK2)Argr/Jak2+
Tg(Mx1-cre)1Cgn/0  (conditional)
Jak2tm1Mohi/Jak2+
Tg(Mx1-cre)1Cgn/0  (conditional)
Jak2tm2.1Jlvl/Jak2+
Tg(Vav1-cre)#Cgp/0  (conditional)

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
04/23/2024
MGI 6.23
The Jackson Laboratory