GO:0005739; C:mitochondrion; IEA:Compara.
GO:0005634; C:nucleus; IEA:Compara.
GO:0004844; F:uracil DNA N-glycosylase activity; IEA:Compara.
GO:0006284; P:base-excision repair; IEA:InterPro.
GO:0016446; P:somatic hypermutation of immunoglobulin genes; IEA:Compara.
GO:0016447; P:somatic recombination of immunoglobulin gene segments; IEA:Compara.