haploinsufficiency

One copy insufficient

Haploinsufficiency is a genetic condition in which one functional copy of a gene is insufficient to maintain normal function.

Humans carry two copies of most genes; when one copy is mutated or deleted, the remaining copy sometimes cannot produce enough protein to prevent disease.

Many genetic disorders result from haploinsufficiency rather than complete loss of function.

genetics

allele

Gene variant at one locus

expressivity · heterozygous · diploid · locus · monogenic · inheritance · genotype · carrier · germline · somatic

mutation

truncation

Cutting something shorter

pathogenic · deleterious · knockout · silencing · inactivation · disruption · variant

genes

BRCA1

Tumor suppressor gene

mechanism

wild-type

Original genetic baseline

Categories
Opposites
gene dosage sufficiency

haploinsufficiencydosage compensation

Equalizing sex chromosome expression

gain-of-function

inheritance pattern

haploinsufficiencycarrier state

Pathogen presence without disease

Family

insufficient, sufficiency, insufficiency, haploid

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