raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:447731

NIK deficiency

Synonyms: Primary immunodeficiency with multifaceted aberrant lymphoid immunity

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A rare, genetic, primary combined T and B cell immunodeficiency characterized by recurrent, severe viral and bacterial infections. Immunologic findings include decreased immunoglobulin levels, decreased numbers of B and NK cells, reduced relative CD19+ B cells in peripheral blood, impaired memory responses to viral infections and defective antigen-specific T-cell proliferation.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enNIK deficiencyPrimary immunodeficiency with multifaceted aberrant lymphoid immunity
frDéficit en NIK
deNIK-MangelNIK-Defekt · NIK-Defizienz · Primärer Immundefekt mit vielfältiger Störung der lymphoiden Immunität
esDeficiencia de NIKInmunodeficiencia primaria con inmunidad linfocitaria aberrante multifacética
itDeficit di NIKImmunodeficienza primitiva con immunità linfocitaria aberrante multiforme
nlNIK-deficiëntiePrimaire immuundeficiëntie met verscheiden afwijkende lymfoïde immuniteit
ptDéfice de NIK
plNiedobór NIK= en
csDeficit NIKPrimární imunodeficience s multifacetovou odchylkou lymfatické imunity
ukДефіцит NIKПервинний імунодефіцит з багатогранним аберантним лімфоїдним імунітетом
zhNIK缺乏症合并多种淋巴免疫异常的原发性免疫缺陷病
trNIK eksikliğiMulti anormal lenfoid bağışıklığı ile seyreden primer immün yetmezlik

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM620449Evalidated
ICD-10D81.8NTBTattributedvalidated
ICD-114A01.1YNTBTattributedvalidated
MONDO0018642Evalidated
UMLSC5680065Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
MAP3K14Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:6853ENSG0000000606260465517q21.31mitogen-activated protein kinase kinase kinase 1425406581[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families2 casesWorldwideCase(s)Validated25406581[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_25406581[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card