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Any autosomal recessive primary microcephaly in which the cause of the disease is a mutation in the MCPH1 gene.
Data assembled from 6 of 12 sources · Last updated Sep 18, 2026, 4:51 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Features include always present findings: Primary microcephaly and Intellectual disability; and sometimes findings: Short stature. 6 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 3 | Seizure, Small cerebral cortex, Intellectual disability |
Growth and development | 1 | Short stature |
Head and neck | 1 | Primary microcephaly |
Age of onset: infancy.
MCPH1 encodes microcephalin 1 (835 aa). Implicated in chromosome condensation and DNA damage induced cellular responses. May play a role in neurogenesis and regulation of the size of the cerebral cortex Highest expression in Cells EBV-transformed lymphocytes (8.6 TPM) and Artery Tibial (6.7 TPM).
Microcephaly 1, primary, autosomal recessive is associated with mutations in the MCPH1 gene on chromosome 8.
The MCPH1 protein participates in MCPH1 sequesters condensin II and ZNF827 and NR2C2,NR2F2 recruit NuRD to telomeric chromatin pathways.
MCPH1 is classified as a druggable target (Kinase category) with score 4.0.
Genetic testing for MCPH1 is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 2 always present features.
No clinical trials have been registered for microcephaly 1, primary, autosomal recessive.
5 publications have been identified in PubMed for microcephaly 1, primary, autosomal recessive. Research spans Review / Meta-Analysis (60%), Basic Science / Preclinical (20%), and Epidemiology / Natural History (20%).
Chakraborty S (2025). [PMID: 41074654](https://pubmed.ncbi.nlm.nih.gov/41074654/). *Fly*. [Review / Meta-Analysis]
Yoon AH (2025). [PMID: 39235599](https://pubmed.ncbi.nlm.nih.gov/39235599/). *Abdominal radiology (New York)*. [Review / Meta-Analysis]
Ji W (2025). [PMID: 39979118](https://pubmed.ncbi.nlm.nih.gov/39979118/). *Journal of proteome research*. [Epidemiology / Natural History]
Charbel C (2025). [PMID: 41284030](https://pubmed.ncbi.nlm.nih.gov/41284030/). *Abdominal radiology (New York)*. [Review / Meta-Analysis]
Luo S (2024). [PMID: 38818167](https://pubmed.ncbi.nlm.nih.gov/38818167/). *Heliyon*. [Basic Science / Preclinical]