Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2024 Sep;26(9):101166.
doi: 10.1016/j.gim.2024.101166. Epub 2024 May 17.

Loss of function of FAM177A1, a Golgi complex localized protein, causes a novel neurodevelopmental disorder

Collaborators, Affiliations

Loss of function of FAM177A1, a Golgi complex localized protein, causes a novel neurodevelopmental disorder

Jennefer N Kohler et al. Genet Med. 2024 Sep.

Abstract

Purpose: The function of FAM177A1 and its relationship to human disease is largely unknown. Recent studies have demonstrated FAM177A1 to be a critical immune-associated gene. One previous case study has linked FAM177A1 to a neurodevelopmental disorder in 4 siblings.

Methods: We identified 5 individuals from 3 unrelated families with biallelic variants in FAM177A1. The physiological function of FAM177A1 was studied in a zebrafish model organism and human cell lines with loss-of-function variants similar to the affected cohort.

Results: These individuals share a characteristic phenotype defined by macrocephaly, global developmental delay, intellectual disability, seizures, behavioral abnormalities, hypotonia, and gait disturbance. We show that FAM177A1 localizes to the Golgi complex in mammalian and zebrafish cells. Intersection of the RNA sequencing and metabolomic data sets from FAM177A1-deficient human fibroblasts and whole zebrafish larvae demonstrated dysregulation of pathways associated with apoptosis, inflammation, and negative regulation of cell proliferation.

Conclusion: Our data shed light on the emerging function of FAM177A1 and defines FAM177A1-related neurodevelopmental disorder as a new clinical entity.

Keywords: Developmental Delay; FAM177A1; Macrocephaly; Neurodevelopment; Zebrafish.

PubMed Disclaimer

Conflict of interest statement

Conflict of Interest The authors declare no conflicts of interest.

Similar articles

Cited by

References

    1. Sjakste T, Trapina I, Rumba-Rozenfelde I, Lunin R, Sugoka O, Sjakste N. Identification of a novel candidate locus for juvenile idiopathic arthritis at 14q13.2 in the Latvian population by association analysis with microsatellite markers. DNA Cell Biol. 2010;29(9):543–551. doi:10.1089/DNA.2009.0970 - DOI - PubMed
    1. Sjakste T, Eglite J, Sochnevs A, et al. Microsatellite genotyping of chromosome 14q13.2–14q13 in the vicinity of proteasomal gene PSMA6 and association with Graves’ disease in the Latvian population. Immunogenetics. 2004;56(4):238–243. doi:10.1007/S00251-004-0687-9 - DOI - PubMed
    1. Parada H, Sun X, Fleming JM, et al. Race-associated biological differences among luminal A and basal-like breast cancers in the Carolina Breast Cancer Study. Breast Cancer Res 2017 191. 2017;19(1):1–9. doi:10.1186/S13058-017-0914-6 - DOI - PMC - PubMed
    1. Chen H, Guo M, Yue D, et al. MicroRNA-7 negatively regulates Toll-like receptor 4 signaling pathway through FAM177A. Immunology. 2021;162(1):44–57. doi:10.1111/imm.13252 - DOI - PMC - PubMed
    1. Liao BW, Zhang HY, Du WT, Ran Y, Wang YY, Xu ZS. FAM177A1 Inhibits IL-1β–Induced Signaling by Impairing TRAF6–Ubc13 Association. J Immunol. 2021;207(12):3090–3097. doi:10.4049/jimmunol.2100561 - DOI - PubMed

MeSH terms

Substances

LinkOut - more resources