This allele is a polymorphism resulting in a protein of fast electrophoretic ability compared to C3b (slow) and C3a (intermediate). The SJL/J, SWR/J, DA/HuSn, WB/Re, IS/Cam, SF/Cam, AEJ/GnRk and AKR.M strains carry this allele.
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count