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#Toll-like receptors

4 public questions tagged with this topic.

Immunology

Toll-like receptors (TLRs) are expressed mainly on

Innate immune cells, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

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Immunology

Which transcription factor is critical for interferon gene induction downstream of TLR signaling?

IRFs, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

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Immunology

TRIF-dependent signaling is characteristic of

Most Toll-like receptors signal through the adaptor MyD88, which recruits IRAK kinases and ultimately activates NF-κB and MAP kinases. TLR3 and the endosomal form of TLR4 instead use the adaptor TRIF to activate IRF3 and type-I interferon production. The choice of adaptor therefore determines the balance between inflammatory and antiviral transcriptional programs.

Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)

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