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BabyScreen+ newborn screening v0.2002 IKZF1 Zornitza Stark Marked gene: IKZF1 as ready
BabyScreen+ newborn screening v0.2002 IKZF1 Zornitza Stark Gene: ikzf1 has been classified as Green List (High Evidence).
BabyScreen+ newborn screening v0.2002 IKZF1 Zornitza Stark Classified gene: IKZF1 as Green List (high evidence)
BabyScreen+ newborn screening v0.2002 IKZF1 Zornitza Stark Gene: ikzf1 has been classified as Green List (High Evidence).
BabyScreen+ newborn screening v0.2001 IKZF1 Zornitza Stark Tag treatable tag was added to gene: IKZF1.
Tag immunological tag was added to gene: IKZF1.
BabyScreen+ newborn screening v0.2001 IKZF1 Zornitza Stark edited their review of gene: IKZF1: Changed rating: GREEN
BabyScreen+ newborn screening v0.2001 IKZF1 Zornitza Stark gene: IKZF1 was added
gene: IKZF1 was added to Baby Screen+ newborn screening. Sources: Expert list
Mode of inheritance for gene: IKZF1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Phenotypes for gene: IKZF1 were set to Immunodeficiency, common variable, 13 MIM# 616873
Added comment: Over 25 individuals from 9 unrelated families with variants in IKZF1 displaying Immunodeficiency; three mouse models Heterozygous missense, frameshift and deletion variants in IKZF1 gene resulting in loss or alteration of a zinc finger DNA contact site cause LoF. Typically presents with recurrent bacterial respiratory infections, hypogammaglobulinaemia and low Ig levels; variable age of onset.

PMID 35333544: Eight individuals harboring heterozygous IKZF1R183H or IKZF1R183C variants associated with GOF effects reported. The clinical phenotypes and pathophysiology associated with IKZF1R183H/C differ from those of previously reported patients with IKZF1HI, IKZF1DN, and IKZF1DD and should therefore be considered as a novel IKAROS-associated disease entity. This condition is characterized by immune dysregulation manifestations including inflammation, autoimmunity, atopy, and polyclonal PC proliferation.

Included primarily for LoF phenotype.

Treatment: IVIG and BMT.

Non-genetic confirmatory testing: immunoglobulin levels
Sources: Expert list