Details for: LOC105377198

Gene ID: 105377198

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: LOC105377198

Ensembl ID: ENSG00000239572

Description: uncharacterized LOC105377198

Selected Context(s):  Overall

Cell Significance Landscape

Contexts:

Significant Cells

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

  • chandelier pvalb GABAergic cortical interneuron CL4023036
    CSI 1.39
    rCSI 4.33%
    PRS 99.96

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

Explore relationships of the current gene. Select an Interaction Source: 'ONTOLOGY' for shared pathways (GO/Reactome) or 'STRING' for protein-protein interactions. Further refine by selecting context genes and comparing Cell Significance Index (CSI) scores between baseline and target cell types and their specific contexts.

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  • Query Gene
  • Node Color (Target Cell CSI, relative to current network):
    • Very High
    • High
    • Medium
    • Low
    • Very Low
    • 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 [LOC105377198](/details-gene/105377198) is an uncharacterized non-coding RNA (ncRNA) gene located on human chromosome 3p11.2. Current expression data indicates a highly specialized role, with its significance being almost exclusively confined to a specific subtype of inhibitory neurons in the cerebral cortex. Its function remains unknown, but its cell-type-specific expression pattern suggests a potential role in the development or specialized function of [chandelier pvalb GABAergic cortical interneuron](/details-cell/CL4023036). ## Cellular Roles and Expression Landscape The expression profile of [LOC105377198](/details-gene/105377198) points towards a highly restricted function within the central nervous system. **Overall**, the gene's most significant expression is observed in [chandelier pvalb GABAergic cortical interneuron](/details-cell/CL4023036) (CSI: 1.39). These cells are a distinct and crucial class of inhibitory interneurons that uniquely target the axon initial segment of pyramidal neurons, thereby exerting powerful control over neuronal output and network activity. The specific expression of [LOC105377198](/details-gene/105377198) in this cell type suggests it may serve as a precise molecular marker or play a functional role in establishing or maintaining the unique identity and synaptic connectivity of these neurons. The absence of significant expression in other cell types analyzed underscores its narrow and specialized cellular context. ## Pathways and Molecular Function As an uncharacterized ncRNA, the molecular functions and biological pathways associated with [LOC105377198](/details-gene/105377198) are not yet defined in public databases such as GO and Reactome. Given its specific expression in chandelier interneurons, it is plausible that this ncRNA is involved in regulatory networks controlling neuron specification, synapse formation, or the modulation of gene expression programs that are essential for the highly specialized inhibitory function of these cells. ## Research Directions The highly specific expression pattern of [LOC105377198](/details-gene/105377198) makes it a compelling subject for further investigation, particularly concerning the biology of cortical interneurons and their role in neurological disorders. **Proposed Testable Hypotheses:** 1. [LOC105377198](/details-gene/105377198) acts as a key regulator in the terminal differentiation or maturation of [chandelier pvalb GABAergic cortical interneuron](/details-cell/CL4023036). Its expression may be required to drive the specific morphological and physiological features of these cells, such as the formation of their characteristic axo-axonic synapses. 2. The ncRNA [LOC105377198](/details-gene/105377198) is involved in activity-dependent gene regulation within mature chandelier neurons. It may function to maintain cellular homeostasis or modulate synaptic plasticity in response to network activity, thereby fine-tuning their powerful inhibitory control over pyramidal cells. **Suggested Experimental Approach:** To test the hypothesis that [LOC105377198](/details-gene/105377198) is essential for chandelier cell development (Hypothesis 1), an *in vitro* differentiation model using human pluripotent stem cells could be employed. Differentiating these cells toward cortical interneuron lineages while suppressing [LOC105377198](/details-gene/105377198) expression using CRISPR interference (CRISPRi) would be a key first step. The resulting cell populations could then be analyzed by single-cell RNA-sequencing to determine if the knockdown specifically ablates or impairs the generation of the chandelier cell transcriptional state. Furthermore, immunofluorescence staining for chandelier cell markers and analysis of synapse formation in co-culture with pyramidal neurons would reveal deficits in maturation and connectivity. **Therapeutic Potential:** Given that chandelier cell dysfunction has been implicated in the pathophysiology of neuropsychiatric disorders such as schizophrenia and epilepsy, [LOC105377198](/details-gene/105377198) represents a potential future therapeutic target. Its extreme cell-type specificity is highly advantageous, as it could allow for targeted interventions with minimal off-target effects in other cell types. If dysregulation of [LOC105377198](/details-gene/105377198) is found to contribute to disease, developing antisense oligonucleotides (ASOs) to either inhibit or augment its function could offer a novel therapeutic strategy. However, extensive functional characterization is required to first elucidate its precise role and mechanism of action.