" /> Agammaglobulinemia 1, autosomal recessive - CISMeF





Preferred Label : Agammaglobulinemia 1, autosomal recessive;

Symbol : AGM1;

CISMeF acronym : AGM1;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Agammaglobulinemia, autosomal recessive, due to ighm defect;

Description : Agammaglobulinemia is a primary immunodeficiency characterized by profoundly low or absent serum antibodies and low or absent circulating B cells due to an early block of B-cell development. Affected individuals develop severe infections in the first years of life. The most common form of agammaglobulinemia is X-linked agammaglobulinemia (AGMX1, XLA; 300755), also known as Bruton disease, which is caused by mutation in the BTK gene (300300). AGMX1 accounts for anywhere from 85 to 95% of males who have the characteristic findings (Lopez Granados et al., 2002; Ferrari et al., 2007). Autosomal recessive inheritance of agammaglobulinemia, which has a similar phenotype to that of the X-linked form, has been observed in a small number of families, and accounts for up to 15% of patients with agammaglobulinemia (Ferrari et al., 2007). Conley (1999) gave a comprehensive review of autosomal recessive agammaglobulinemia. - Genetic Heterogeneity of Autosomal Agammaglobulinemia Autosomal agammaglobulinemia is a genetically heterogeneous disorder: see also AGM2 (613500), caused by mutation in the IGLL1 gene (146770); AGM3 (613501), caused by mutation in the CD79A gene (112205); AGM4 (613502), caused by mutation in the BLNK gene (604515); AGM5 (613506), caused by disruption of the LRRC8 gene (608360); AGM6 (612692), caused by mutation in the CD79B gene (147245); and AGM7 (615214), caused by mutation in the PIK3R1 gene (171833).;

Inheritance : Autosomal recessive;

Molecular basis : Caused by mutation in the immunoglobulin mu gene (IGHM, 147020.0001);

Laboratory abnormalities : Neutropenia;

Prefixed ID : #601495;

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11/06/2024


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