raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:293825

Autosomal dominant KLF1-related dyserythropoietic anemia

Synonyms: Congenital dyserythropoietic anemia type IVa · Congenital dyserythropoietic anemia type 4a · CDA type IVa · CDA type 4a

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

A form of congenital dyserythropoietic anemia (CDA) characterized by ineffective erythropoiesis and hemolysis that leads to severe anemia at birth, requiring repeated transfusions. The majority of affected individuals experience severe hemolytic anemia, often accompanied by a normal or slightly elevated reticulocyte count, hepatosplenomegaly, hyperbilirubinemia, and persistence of fetal hemoglobin. Hypertrophic cardiomyopathy and occasional dysmorphic features, including large anterior fontanel, hypertelorism, micropenis, and hypospadias, have also been reported. All documented cases to date share the same dominant-negative missense variant, E325K, in the <i>KLF1</i> gene (19p13.2).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal dominant KLF1-related dyserythropoietic anemiaCongenital dyserythropoietic anemia type IVa · Congenital dyserythropoietic anemia type 4a · CDA type IVa · CDA type 4a
frAnémie dysérythropoïétique autosomique dominante associée à KLF1CDA type 4a · Anémie dysérythropoïétique congénitale type IVa · Anémie dysérythropoïétique congénitale type 4a · CDA type IVa
deKLF1-assoziierte dyserythropoetische Anämie, autosomal-dominanteCDA Typ IVa · CDA Typ 4a · Anämie, dyserythropoetische kongenitale, Typ IVa · Kongenitale dyserythropoetische Anämie Typ 4a
esAnemia diseritropoyética asociada al gen KLF1 autosómica dominanteADC tipo 4a · ADC tipo IVa · Anemia diseritropoyética congénita tipo IVa · Anemia diseritropoyética congénita tipo 4a · CDA tipo 4a · CDA tipo IVa
itAnemia diseritropoietica autosomica dominante correlata a KLF1CDA tipo 4a · Anemia diseritropoietica congenita, tipo 4 · CDA tipo Iva · CDA da mutazione di KLF1 · Anemia diseritropoietica congenita di tipo 4a · Anemia diseritropoietica congenita di tipo IVa
nlAutosomaal dominante KLF1-gerelateerde dyserytropoëtische anemieCDA type IVa · CDA type 4a · Congenitale dyserytropoëtische anemie type IVa · Congenitale dyserytropoëtische anemie type 4a
ptAnemia diseritropoiética congénita por mutação em KLF1CDA por mutação em KLF1
plWrodzona niedokrwistość dyserytropoetyczna typu IVCDA IV · CDA typu 4 · CDA typu IV · CDA z powodu mutacji KLF1 · CDAN4 · Wrodzona niedokrwistość dyserytropoetyczna typu 4 · Wrodzona niedokrwistość dyserytropoetyczna z powodu mutacji KLF1
csKongenitální dyserytropoetická anémie, typ IVCDA IV · CDA, typ 4 · CDA, typ IV · CDAN4 · Vrozená dyserytropoetická anémie, typ 4 · CDA způsobená mutací KLF1 · Vrozená dyserytropoetická anémie způsobená mutací KLF1
ukВроджена дизеритропоетична анемія, тип IVCDA через мутацію KLF1 · CDA IV · CDA тип 4 · CDA тип IV · CDAN4 · Вроджена дизеритропоетична анемія внаслідок мутації KLF1 · Вроджена дизеритропоетична анемія типу 4
zh先天性红细胞生成障碍性贫血IV型KLF1基因突变所致先天性红细胞生成障碍性贫血
trDoğumsal dizeritropoietik anemi tip IVCDAN4 · CDA IV · CDA tip 4 · CDA tip IV · KLF1 mutasyonuna bağlı CDA · Doğumsal diseritropoetik anemi tip 4 · KLF1 mutasyonuna bağlı doğumsal diseritropoetik anemi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM613673Evalidated
ICD-10D64.4NTBTattributedvalidated
ICD-113A73NTBTattributedvalidated
MONDO0013355Evalidated
UMLSC3150926Evalidated

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
KLF1Disease-causing germline mutation(s) inAssessedHGNC:6345ENSG0000010561060059919p13.13KLF transcription factor 1
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families4 casesWorldwideCase(s)Validated23522491[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_23522491[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.

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HPO phenotypes

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

7

Sources for this card