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Any infantile liver failure in which the cause of the disease is a mutation in the NBAS gene.
Features include sometimes findings: Seizure and Heart muscle disease (cardiomyopathy). 11 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Digestive system | 5 | Vomiting, Hepatic encephalopathy, Acute hepatic failure |
Brain and nerves |
NBAS encodes NBAS subunit of NRZ tethering complex (2,371 aa). Involved in Golgi-to-endoplasmic reticulum (ER) retrograde transport; the function is proposed to depend on its association in the NRZ complex which is believed to play a role in SNARE assembly at the ER. Highest expression in Testis (28.8 TPM) and Cells Cultured fibroblasts (23.7 TPM).
Infantile liver failure syndrome 2 is associated with mutations in the NBAS gene on chromosome 2.
NBAS is classified as a druggable target with score 0.0.
Genetic testing for NBAS is available. Testing is considered confirmatory for diagnosis.
No clinical trials have been registered for infantile liver failure syndrome 2.
7 publications have been identified in PubMed for infantile liver failure syndrome 2. Research spans Case Report / Case Series (43%), Basic Science / Preclinical (29%), and Other (14%).
Hu A (2025). [PMID: 41282478](https://pubmed.ncbi.nlm.nih.gov/41282478/). *Front Genet*. [Other]
Li S (2025). [PMID: 39779337](https://pubmed.ncbi.nlm.nih.gov/39779337/). *Zhonghua Yi Xue Yi Chuan Xue Za Zhi*. [Case Report / Case Series]
Peters B (2025). [PMID: 40433928](https://pubmed.ncbi.nlm.nih.gov/40433928/). *Liver Int*. [Epidemiology / Natural History]
Nuzhnaya Е (2025). [PMID: 41057908](https://pubmed.ncbi.nlm.nih.gov/41057908/). *Hum Genomics*. [Case Report / Case Series]
Silverstein S (2025). [PMID: 40215727](https://pubmed.ncbi.nlm.nih.gov/40215727/). *Mol Genet Metab*. [Case Report / Case Series]
Hu A (2025). [PMID: 41132786](https://pubmed.ncbi.nlm.nih.gov/41132786/). *Front Genet*. [Basic Science / Preclinical]
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 4:32 PM UTC
Online Mendelian Inheritance in Man
Genetic and Rare Diseases Info Center
2 |
Seizure, Hepatic encephalopathy |
Heart and blood vessels | 1 | Heart muscle disease (cardiomyopathy) |
Lab test results | 1 | Elevated circulating hepatic transaminase concentration |
Age of onset: infancy.
Tang J (2025). [PMID: 40680151](https://pubmed.ncbi.nlm.nih.gov/40680151/). *Hum Mol Genet*. [Basic Science / Preclinical]