Mouse Genome Informatics
hm
    Add2tm1Llp/Add2tm1Llp
involves: 129S4/SvJae * C57BL/6J
Key:
phenotype observed in females WTSI Wellcome Trust Sanger Institute
phenotype observed in males EuPh Europhenome
N normal phenotype
       

Red blood cell and histological spleen comparison of Add2tm1Llp/Add2tm1Llp and +/+ wildtype mouse.

hematopoietic system
• the amount of alpha adducin in red blood cell membranes is reduced to 20% of normal levels while there is a 5-fold increase in gamma adducin and there are many red blood cells of reduced size and abnormal shapes including spherocytes, spherostomatocytes, and rounded elliptocytes
• hematocrit of 47.8% compared with 51.4% in wild-type controls (J:161920)
• red blood cells are smaller and show a variety of shapes, including spehrocytes, spherostomatocytes, and rounded elliptocytes (J:71029)
• red blood cells are smaller
• reticulocyte percentages are increased, indicating a compensatory acceleration of red blood cell production in response to chronic hemolysis (J:71029)
• the reticulocyte percentage is increased to 4.3% versus 2.8% in wild-type controls (J:161920)
• iron deposition is increased in the spleen
• red blood cells are osmotically fragile and dehydrated (as indicated by decreased potassium and sodium content)
• red blood cells show decreased levels of alpha-adducin (Add1) and increased levels of gamma-adducin (Add3)
• increased red blood cell fragility as assessed by both osmotic lysis and ektacytometry

homeostasis/metabolism
• iron deposition is increased in the spleen
• iron deposition is increased in the kidney
• iron deposition is increased in the liver

immune system
• iron deposition is increased in the spleen

liver/biliary system
• iron deposition is increased in the liver

renal/urinary system
• iron deposition is increased in the kidney

Mouse Models of Human Disease
OMIM IDRef(s)
Spherocytosis, Type 1; SPH1 182900 J:71029