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Hemolytic anemia due to adenylate kinase deficiency is a rare hemolytic anemia due to an erythrocyte nucleotide metabolism disorder characterized by moderate to severe chronic nonspherocytic hemolytic anemia that may require regular blood transfusions and/or splenectomy and may be associated with psychomotor impairment.
Features include always present findings: Reduced erythrocyte adenylate kinase activity. 2 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Blood and immune system | 1 | Red blood cell destruction (hemolytic anemia) |
AK1 encodes adenylate kinase 1 (194 aa). Catalyzes the reversible transfer of the terminal phosphate group between ATP and AMP. Also displays broad nucleoside diphosphate kinase activity. Highest expression in Muscle Skeletal (223.5 TPM) and Heart Atrial Appendage (136.2 TPM).
Hemolytic anemia due to adenylate kinase deficiency is associated with mutations in the AK1 gene on chromosome 9.
The AK1 protein participates in (d)AMP + ATP (d)ADP + ADP (AK1) and (d)ADP + ADP (d)AMP + ATP (AK1) pathways.
AK1 is classified as a druggable target (Enzyme and Kinase categories) with score 1.5.
Genetic testing for AK1 is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 1 always present feature.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for hemolytic anemia due to adenylate kinase deficiency.
1 publication has been identified in PubMed for hemolytic anemia due to adenylate kinase deficiency. Research spans Case Report / Case Series (100%).
Chen L (2025). [PMID: 40016400](https://pubmed.ncbi.nlm.nih.gov/40016400/). *Ann Hematol*. [Case Report / Case Series]
Data assembled from 6 of 12 sources · Last updated Sep 19, 2026, 6:19 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center