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SP110
SP110 nuclear body protein
SP110 is located on the long (q) arm of chromosome 2, at band 2q37.1. Arm ratio per GRCh38 - banding schematic.
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Overview
SP110 encodes the SP110 nuclear body protein, a component of nuclear bodies that are distinct subnuclear structures involved in various cellular processes. These nuclear bodies serve as sites for the organisation and regulation of gene expression machinery. The SP110 protein is expressed predominantly in cells of the immune system and has been studied in the context of host defence mechanisms. Research suggests that SP110 contributes to the cellular response to pathogens, particularly in macrophages and other immune cells. Understanding the function of SP110 may provide insights into immune regulation and susceptibility to certain infections.
What the gene does
The SP110 protein functions within nuclear bodies, where it is thought to participate in transcriptional control and chromatin organisation. Nuclear bodies are dynamic structures that concentrate specific proteins and nucleic acids, facilitating processes such as gene silencing and activation. SP110 appears to influence the expression of genes involved in immune responses, particularly those activated during infection or inflammation. The protein interacts with chromatin and may modulate the accessibility of DNA to transcriptional machinery. Evidence suggests SP110 plays a role in the interferon-mediated antiviral response, helping coordinate cellular defences against intracellular pathogens. The protein's localisation to nuclear bodies positions it to influence multiple aspects of gene regulation simultaneously. Ongoing research continues to clarify the specific molecular pathways through which SP110 exerts its effects on immune function and cellular homeostasis.
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Chromosome location
The SP110 gene is located on chromosome 2 at position 2q37.1, near the terminus of the long arm of chromosome 2. This chromosomal region contains several genes involved in immune function and host defence. The precise number of exons and structural features of the SP110 gene have been characterised through genomic sequencing studies, revealing the organisation of coding and regulatory sequences.
Protein structure
Domain architecture has not been experimentally characterised in detail for this protein. The SP110 protein sequence contains regions that mediate nuclear localisation and interaction with other nuclear body components, though specific functional domains have not been comprehensively mapped in available databases.
Key variants
Genetic variants in SP110 have been identified through sequencing studies of diverse populations. Some variants affect protein expression or function, potentially influencing immune responses. The clinical significance of most SP110 variants remains under investigation, with research examining associations between specific genetic changes and susceptibility to infectious diseases. Variant interpretation requires careful assessment of the functional impact on the protein and consideration of population frequency data.
No pathogenic or likely-pathogenic ClinVar variants recorded yet for this gene.
Associated conditions
SP110 has been studied primarily in relation to infectious disease susceptibility rather than monogenic inherited conditions. Research has investigated associations between SP110 variants and outcomes in tuberculosis infection, though the gene is not currently established as a major determinant of Mendelian disease. The protein's role in immune function suggests that alterations may influence host defence capacity, but the relationship between specific variants and clinical phenotypes remains an area of ongoing investigation.
No disease links recorded for this gene in our reference set.
UK clinical status
Sources: NHS GMS PanelApp · Genomics England PanelApp · NHS National Genomic Test Directory
Frequently asked questions
What are nuclear bodies and why are they important?
Nuclear bodies are specialised compartments within the cell nucleus that concentrate specific proteins and nucleic acids to facilitate particular cellular processes. They serve as organisational hubs for gene regulation, chromatin modification, and other nuclear functions, allowing the cell to coordinate complex molecular activities efficiently.
Is SP110 testing available through the NHS?
SP110 is not currently included in standard NHS genomic medicine testing panels. The gene is not associated with well-defined inherited conditions that meet criteria for routine clinical genetic screening in the UK healthcare system.
How does SP110 relate to immune function?
SP110 is expressed primarily in immune cells and contributes to the regulation of genes involved in host defence responses. Research suggests the protein plays a role in the interferon pathway and cellular responses to infection, particularly in macrophages that combat intracellular pathogens.