raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:331176

Severe congenital neutropenia due to G6PC3 deficiency

Synonyms: SCN due to G6PC3 deficiency · SCN4 · Severe congenital neutropenia due to glucose-6-phosphatase catalytic subunit 3 deficiency · Severe congenital neutropenia type 4 · Severe congenital neutropenia-pulmonary hypertension-superficial venous angiectasis syndrome

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

Autosomal recessive severe congenital neutropenia due to G6PC3 deficiency is a rare, genetic, primary immunodeficiency disorder characterized by increased susceptibility to recurrent, life-threatening bacterial infections, in association with typically severe neutropenia in peripheral blood and bone marrow and a prominent ectatic superficial vein pattern, resulting from recessively inherited mutations in the <i>G6PC3</i> gene. Cardiac malformations (e.g. atrial septal defects, patent ductus arteriosus,valvular defects), urogenital anomalies (incl. cryptorchidism), growth and developmental delay, facial dysmorphism (e.g. frontal bossing, upturned nose, malar hypoplasia), and intermittent thrombocytopenia are frequently associated.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enSevere congenital neutropenia due to G6PC3 deficiencySCN due to G6PC3 deficiency · SCN4 · Severe congenital neutropenia due to glucose-6-phosphatase catalytic subunit 3 deficiency · Severe congenital neutropenia type 4 · Severe congenital neutropenia-pulmonary hypertension-superficial venous angiectasis syndrome
frNeutropénie congénitale sévère par déficit en G6PC3NCS par déficit en G6PC3 · NCS4 · Neutropénie congénitale sévère par déficit en protéine glucose-6-phosphatase catalytic subunit 3 · Neutropénie congénitale sévère type 4 · Syndrome de neutropénie congénitale sévère-hypertension artérielle pulmonaire-ectasie veineuse superficielle
deNeutropenie, kongenitale schwere, durch G6PC3-MangelNeutropenie, kongenitale schwere, 4 · SCN durch G6PC3-Mangel · SCN4 · Schwere kongenitale Neutropenie aufgrund eines Mangels der katalytischen Glukose-6-Phosphatase-Untereinheit 3 · Schwere kongenitale Neutropenie-pulmonale Hypertension-uperfizielle venöse Angiektasie-Syndrom
esNeutropenia congénita grave por deficiencia de G6PC3NCG por deficiencia de G6PC3 · Neutropenia congénita grave por deficiencia de la subunidad catalítica 3 de la glucosa-6-fosfatasa · Neutropenia congénita grave tipo 4 · SCN4 · Síndrome de neutropenia congénita grave-hipertensión pulmonar-angiectasia venosa superficial
itNeutropenia congenita grave da deficit di G6PC3Neutropenia congenita grave - ipertensione polmonare - angectasia venosa superficiale · Neutropenia congenita grave 4 · Neutropenia congenita grave da deficit della subunità catalitica 3 della glucosio-6-fosfatasi · SCN da deficit di G6PC3 · SCN4 · Sindrome neutropenia congenita grave-ipertensione polmonare-angectasia venosa superficiale
nlErnstige congenitale neutropenie door G6PC3-deficiëntieErnstige congenitale neutropenie - pulmonale hypertensie - oppervlakkige veneuze angiëctasie-syndroom · Ernstige congenitale neutropenie 4 · Ernstige congenitale neutropenie door deficiëntie van katalytische subeenheid 3 van glucose-6-fosfatase · SCN door G6PC3-deficiëntie · SCN4
ptNeutropenia congénita grave por deficiência G6PC3Neutropenia congénita grave por deficiência da subunidade 3 catalitica da glucose-6-fosfatase · Neutropenia congénita grave tipo 4 · SCN por deficiência G6PC3 · SCN4 · Síndrome de neutropenia congénita grave-hipertensão pulmonar-angiectasias venosas superficiais
plCiężka wrodzona neutropenia spowodowana niedoborem G6PC3Ciężka wrodzona neutropenia - nadciśnienie płucne - powierzchowna angiektazja żylna · Ciężka wrodzona neutropenia 4 · SCN4
csAutozomálně recesivní těžká vrozená neutropenie způsobená G6PC3 deficitemSCN4 · Těžká vrozená neutropenie, typ 4 · Syndrom zahrnující těžkou vrozenou neutropenii, plicní hypertenzi a superficiální venózní angiektázii
ukТяжка вроджена нейтропенія, зумовлена дефіцитом G6PC3SCN через дефіцит G6PC3 · SCN4 · Тяжка вроджена нейтропенія внаслідок дефіциту каталітичної субодиниці 3 глюкозо-6-фосфатази · Тяжка вроджена нейтропенія типу 4 · Тяжка вроджена нейтропенія - легенева гіпертензія - синдром поверхневого венозного ангіоектазу
zhG6PC3基因缺乏所致常染色体隐性遗传性严重先天性中性粒细胞减少症先天性重型中性粒细胞减少4型
trG6PC3 eksikliğine bağlı otozomal resesif ağır doğumsal nötropeniAğır doğumsal nötropeni-pulmoner hipertansiyon-yüzeysel venöz anjiyektazi sendromu · SCN4 · Ağır doğumsal nötropeni tip 4

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM612541Evalidated
ICD-10D70NTBTattributedvalidated
ICD-114B00.00NTBTindexvalidated
MONDO0012930Evalidated
MeSHC567260Evalidated
UMLSC2751630Evalidated

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 (3):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
G6PC3Disease-causing germline mutation(s) inAssessedHGNC:24861ENSG0000014134961104517q21.31glucose-6-phosphatase catalytic subunit 323018568[PMID]_19118303[PMID]_20799326[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families57 casesWorldwideCase(s)Validated23758768[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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