Details for: PRKAG2 AS2

Gene ID: 644090

Gene Type:  ncRNA (Non-coding RNA)  - A functional RNA molecule that is transcribed from DNA but not translated into a protein. Includes classes like miRNA and lncRNA.

Symbol: PRKAG2 AS2

Ensembl ID: ENSG00000242048

Description: PRKAG2 antisense RNA 2

Selected Context(s):  Overall

Cell Significance Landscape

Contexts:

Significant Cells

Cell Significance Index (CSI) scores for the chosen context(s)

  • kidney connecting tubule epithelial cell CL1000768
    CSI 5.08
    rCSI 12.89%
    PRS 100

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this specific cell.

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this cell type. Calculated using techniques like effect size estimation and bootstrapping for reliability.

Cell ID: Standard Cell Ontology term used for mapping and comparing cells across experiments. Ensures consistency in analyzing cellular functions across tissues.
Fold Change: Represents the ratio of the current Cell Significance Index to the Cell Significance Index Threshold, indicating how much the gene expression has changed compared to a baseline.
Cell Significance Index: Reflects how strongly a gene is expressed in this cell type. Calculated using techniques like effect size estimation and bootstrapping for reliability.
Network Configuration

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  • Node Color (Target Cell CSI, relative to current network):
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    • CSI N/A
  • Node Size: Proportional to Target Cell CSI magnitude
  • STRING PPI Edge
  • Shared Pathway Edge (ONTOLOGY)

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Other Information

This section provides additional information about the gene, including a description generated by an AI language model and details about associated proteins.

## Summary [PRKAG2 AS2](/details-gene/644090) is a long non-coding RNA (lncRNA) located on human chromosome 7q36.1. As its name suggests, it is transcribed antisense to the *PRKAG2* gene, which encodes a regulatory subunit of the AMP-activated protein kinase (AMPK), a master sensor of cellular energy status. While the precise function of [PRKAG2 AS2](/details-gene/644090) remains largely uncharacterized, available expression data indicate a highly specific role, with its most significant expression observed in epithelial cells of the kidney. This suggests a potential involvement in regulating renal metabolism and ion transport through modulation of the local AMPK signaling pathway. ## Cellular Roles and Expression Landscape The expression profile of [PRKAG2 AS2](/details-gene/644090) appears to be highly specialized, pointing towards a niche function rather than a broad, systemic role. **Overall**, the gene's significance is most pronounced in the kidney. Analysis reveals its top cellular context as: * [kidney connecting tubule epithelial cell](/details-cell/CL1000768) (CSI: 5.08) This high degree of specificity for a distinct cell type within the nephron suggests that [PRKAG2 AS2](/details-gene/644090) may be a key regulator of the specialized physiological functions of the connecting tubule, such as fine-tuning of water and electrolyte balance. The absence of significant expression in a wide range of other cell types further underscores its potential as a specific marker for this renal cell population. ## Pathways and Molecular Function Currently, there are no specific Gene Ontology (GO) or Reactome pathway annotations directly assigned to [PRKAG2 AS2](/details-gene/644090). However, its identity as an antisense non-coding RNA provides a strong basis for inferring its molecular function. Antisense transcripts often function by regulating the expression of their corresponding sense gene through mechanisms like transcriptional interference, mRNA masking, or directing epigenetic modifications. Therefore, the primary function of [PRKAG2 AS2](/details-gene/644090) is likely the post-transcriptional or epigenetic regulation of the *PRKAG2* gene. *PRKAG2* is a critical component of the AMPK complex, a central metabolic sensor that plays a fundamental role in cellular energy homeostasis. Consequently, [PRKAG2 AS2](/details-gene/644090) is likely involved in pathways related to cellular responses to metabolic stress and energy deprivation, but its influence is probably restricted to the specific cellular contexts in which it is expressed, such as the [kidney connecting tubule epithelial cell](/details-cell/CL1000768). ## Research Directions The highly specific expression of [PRKAG2 AS2](/details-gene/644090) in the kidney and its relationship with the vital metabolic sensor AMPK present several compelling avenues for future research. ### Proposed Hypotheses 1. **[PRKAG2 AS2](/details-gene/644090) acts as a negative regulator of *PRKAG2* expression in [kidney connecting tubule epithelial cells](/details-cell/CL1000768).** By forming an RNA-RNA duplex with the *PRKAG2* pre-mRNA or mature mRNA, it may promote its degradation or inhibit its translation, thereby fine-tuning local AMPK activity and influencing downstream processes like ion channel function and cellular metabolism. 2. **The expression of [PRKAG2 AS2](/details-gene/644090) is dynamically regulated by metabolic stress in the kidney.** Conditions such as hypoxia, glucose deprivation, or osmotic stress may alter [PRKAG2 AS2](/details-gene/644090) levels, representing a control mechanism to modulate the AMPK-mediated stress response in renal tubules. Dysregulation of this lncRNA could therefore contribute to the pathophysiology of metabolic kidney diseases, such as diabetic nephropathy. ### Experimental Approach To test the hypothesis that **[PRKAG2 AS2](/details-gene/644090) negatively regulates *PRKAG2***, a loss-of-function study could be performed. Human primary renal tubular epithelial cells or a suitable cell line could be treated with antisense oligonucleotides (ASOs) or siRNA specifically targeting [PRKAG2 AS2](/details-gene/644090). The impact of its knockdown would be assessed by measuring changes in *PRKAG2* mRNA and protein levels via RT-qPCR and Western blotting, respectively. A functional readout, such as measuring the phosphorylation status of AMPK and its key downstream target ACC (Acetyl-CoA Carboxylase) under baseline and metabolically stressed conditions, would elucidate the functional consequences of this regulatory axis. ### Therapeutic Potential Given its high tissue specificity and its role as a non-coding RNA, [PRKAG2 AS2](/details-gene/644090) could represent a promising therapeutic target. If its overexpression is implicated in a renal pathology (e.g., by suppressing a protective AMPK response), it would be an excellent candidate for inhibition via targeted RNA-based therapeutics like ASOs. The specificity for kidney cells could minimize systemic off-target effects, offering a precision-medicine approach to treating certain forms of kidney disease.