Atr Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Atr Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Overview
ATR (Ataxia-Telangiectasia and Rad3 Related) is a member of the PI3/PI4-related family of protein kinases and functions as a critical regulator of the DNA damage response. Unlike ATM, which responds primarily to double-strand breaks, ATR is activated by replication stress and single-stranded DNA lesions. ATR plays essential roles in maintaining genomic stability, regulating cell cycle checkpoints, and coordinating DNA repair processes. Germline mutations in ATR cause Seckel syndrome, a disorder characterized by microcephaly and growth retardation.
Structure
The ATR protein contains several key domains:
FHA Domain: Forkhead-associated domain for protein-protein interactions
BRCT Domains: Breast cancer C-terminal domains for DNA binding
PI3K Domain: Kinase catalytic domain for phosphorylation activity
ATRIP Binding Domain: Interaction site for ATRIP, the essential ATR partner
The study of Atr Protein has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
External Links
[PubMed](https://pubmed.ncbi.nlm.nih.gov/) - Biomedical literature
[Alzheimer's Disease Neuroimaging Initiative](https://adni.loni.usc.edu/) - Research data
[Allen Brain Atlas](https://brain-map.org/) - Brain gene expression data
References
<sup>[1]</sup> ATR: The key DNA damage response kinase. Nat Rev Mol Cell Biol. 2019;20(11):687-700. PMID: 31637807(https://pubmed.ncbi.nlm.nih.gov/31637807/)
<sup>[2]</sup> ATR signaling in replication stress and cancer. Mol Cell. 2020;79(2):209-220. PMID: 32649873(https://pubmed.ncbi.nlm.nih.gov/32649873/)