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;
Origin ID : 601495;
UMLS CUI : C3152144;
Automatic exact mappings (from CISMeF team)
Currated CISMeF NLP mapping
DO Cross reference
Genes related to phenotype
HPO term(s)
ORDO concept(s)
Semantic type(s)
Validated automatic mappings to NTBT