Details for: BAIAP2 DT

Gene ID: 440465

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: BAIAP2 DT

Ensembl ID: ENSG00000226137

Description: BAIAP2 divergent transcript

Selected Context(s):  Overall

Cell Significance Landscape

Contexts:

Significant Cells

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

  • progenitor cell CL0011026
    CSI 4.12
    rCSI 8.75%
    PRS 98.67
  • epithelial cell of lung CL0000082
    CSI 3.86
    rCSI 3.2%
    PRS 99.85
  • ciliated epithelial cell CL0000067
    CSI 3.67
    rCSI 3.23%
    PRS 98.43
  • ciliated cell CL0000064
    CSI 3.39
    rCSI 5.5%
    PRS 98.28
  • multi-ciliated epithelial cell CL0005012
    CSI 3.36
    rCSI 3.35%
    PRS 98.82

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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    • High
    • Medium
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    • 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 [BAIAP2 DT](/details-gene/440465) is a non-coding RNA (ncRNA) located on chromosome 17q25.3, transcribed divergently from the protein-coding gene *BAIAP2*. **Overall**, its expression profile indicates a highly specific role within distinct cellular lineages. The gene shows its most significant expression in [progenitor cell](/details-cell/CL0011026) populations and is also a key marker for various types of ciliated epithelial cells, particularly those found in the lung. This pattern suggests a potential function in cellular differentiation, specifically in the development or maintenance of ciliated tissues. ## Cellular Roles and Expression Landscape The expression landscape of [BAIAP2 DT](/details-gene/440465) is narrowly focused on progenitor and specialized epithelial cell types. Its highest significance is observed in [progenitor cell](/details-cell/CL0011026) (CSI: 4.12), indicating a potential role in stemness or lineage commitment. A second prominent feature of its expression is the strong and consistent significance across multiple ciliated cell types. This includes high scores in [epithelial cell of lung](/details-cell/CL0000082) (CSI: 3.86), [ciliated epithelial cell](/details-cell/CL0000067) (CSI: 3.67), [ciliated cell](/details-cell/CL0000064) (CSI: 3.39), and [multi-ciliated epithelial cell](/details-cell/CL0005012) (CSI: 3.36). The co-expression in both progenitor cells and their differentiated ciliated descendants suggests that [BAIAP2 DT](/details-gene/440465) may be involved in the regulatory programs that govern the differentiation of progenitors into mature, functional ciliated cells or in maintaining the identity of this specific cell lineage. ## Pathways and Molecular Function The precise molecular function and pathway associations for [BAIAP2 DT](/details-gene/440465) are not yet well-defined in major annotation databases. As an ncRNA, it is likely to exert its function through gene regulation. Given its status as a divergent transcript, one plausible mechanism is the *cis*-regulation of its neighboring protein-coding gene, *BAIAP2*, which is known to be involved in actin cytoskeleton organization. Dysregulation of the cytoskeleton can impact processes like cell differentiation and the formation of specialized structures like cilia. Alternatively, [BAIAP2 DT](/details-gene/440465) could act in *trans* to modulate the expression of key transcription factors or signaling components essential for ciliogenesis and the maintenance of epithelial cell identity. ## Research Directions Given that the provided data is limited to an **Overall** context, analyzing its dynamic regulation in health versus disease is not possible. However, its specific expression pattern forms the basis for clear, testable hypotheses. **Proposed Hypotheses:** 1. [BAIAP2 DT](/details-gene/440465) is a critical regulator of ciliogenesis, promoting the differentiation of lung progenitor cells into mature ciliated epithelial cells by modulating the expression of key developmental genes. 2. [BAIAP2 DT](/details-gene/440465) functions to maintain the structural or functional integrity of mature ciliated cells, and its downregulation contributes to the ciliary dysfunction observed in respiratory diseases. **Experimental Approach:** To test the hypothesis that [BAIAP2 DT](/details-gene/440465) drives ciliated cell differentiation, a loss-of-function study could be performed using an *in vitro* air-liquid interface (ALI) culture model of primary human bronchial epithelial cells. Progenitor cells would be transduced with lentiviral vectors expressing shRNAs or a CRISPR interference (CRISPRi) system to specifically knockdown [BAIAP2 DT](/details-gene/440465). The effect on differentiation would be assessed by quantifying the number of ciliated cells (via immunofluorescence for acetylated tubulin) and by performing single-cell RNA sequencing to identify perturbations in the transcriptional trajectories leading to the ciliated cell fate. **Therapeutic Potential:** The high specificity of [BAIAP2 DT](/details-gene/440465) for progenitor and ciliated cells, which are central to respiratory health, suggests potential therapeutic relevance. Many chronic lung diseases, such as COPD and cystic fibrosis, are characterized by a loss of functional ciliated cells. If [BAIAP2 DT](/details-gene/440465) is found to be a positive regulator of ciliated cell formation or function, it could be a target for therapeutic **activation**. A therapeutic strategy might involve the development of RNA-based therapeutics (e.g., stabilized RNA mimetics) delivered via inhalation to restore or enhance its activity, thereby promoting epithelial repair and mucociliary clearance.