Nprl2 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.
Full Name: Nitrogen Permease Regulator-Like 2 [1]
Chromosomal Location: 9q34.3 [2]
NCBI Gene ID: 10341 [3]
Ensembl ID: ENSG00000131653 [4]
UniProt: Q9NPJ4 [5]
Aliases: NPRL2, GATOR1 component, TUSC4, DRE2 [6]
NPRL2 encodes a core component of the GATOR1 complex (GAP Activity Toward Rags 1), which is a critical negative regulator of mTORC1 (mechanistic Target of Rapamycin Complex 1) signaling. Together with DEPDC5 and NPRL3, NPRL2 forms the GATOR1 complex that functions as a GAP for Rag GTPases, thereby inhibiting mTORC1 when amino acids are limited. Originally identified as a tumor suppressor in lung cancer, NPRL2 plays important roles in cellular metabolism, stress responses, and has been implicated in neurodegenerative diseases. [7]
The NPRL2 gene consists of:
NPRL2 is a 42 kDa protein:
As part of GATOR1:
NPRL2 is ubiquitously expressed:
The study of Nprl2 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.
Shen K, et al. Architecture of the GATOR1 complex. Cell. 2019. ↩︎
Liu Y, et al. NPRL2 in DNA damage response. Cell Cycle. 2014. ↩︎
Ding J, et al. GATOR1 in epilepsy. Brain. 2018. ↩︎
Yip CK, et al. Structure of the GATOR1-Rag complex. Nature. 2014. ↩︎
Wolff M, et al. GATOR1 mutations in focal epilepsy. Neurology Genetics. 2016. ↩︎
Meng J, et al. NPRL2 in mTOR signaling. Cell Reports. 2020. ↩︎
Kim J, et al. Amino acid sensing by mTORC1. Science. 2019. ↩︎