253260.7

Country

United Arab Emirates

HPO Terms

Decreased biotinidase level
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Sex

Male

Family History

Yes

Parental Consanguinity

Yes

Subject Variants

Variant NameAllele CountAllele FrequencyAssociated DiseaseAssociated Gene
NM_001281723.3:c.1270G>C2
NM_001281723.3:c.1147T>G2

Remarks

Infant with double homozygous BTD variants contributing to profound biotinidase deficiency. He has a brother with speech delay and absent serum biotinidase activity (no molecular test).

Related Subjects

Subject IdCountryHPO TermsSexFamily HistoryParental ConsanguinityRemarks
253260.5United Arab EmiratesDelayed speech and language development; Specific learning disabilityMaleYesYesAffected brother
253260.6United Arab EmiratesStrabismus; Delayed speech and language development; Hyperpigmented/hypopigmented macules; Hearing impairmentMaleYesYesSibling with hyperactivity
253260.8United Arab EmiratesMale
253260.9United Arab EmiratesGlobal developmental delay; Seizure; Blindness; Sleep disturbance; Hearing impairmentMaleNoYes
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