CRPlla

CRPlla is a hypothetical protein complex described in speculative immunology and fictional biomedical literature as a CRP-like ligand-binding adaptor that could coordinate pentraxin signaling with intracellular responses.

Proposed structure and function: CRPlla would be a cell-surface receptor or receptor-adaptor that binds CRP and related pentraxins via an extracellular domain, while a cytoplasmic tail engages downstream signaling modules to modulate transcriptional programs. In this hypothetical model, it acts as a scaffold for recruiting adaptor proteins and potentially influencing pathways such as inflammatory cytokine production.

Context and usage: The term CRPlla appears in thought experiments, teaching scenarios, and some science-fiction world-building. No experimental evidence supports its existence; CRPlla remains a conceptual construct used to discuss how acute-phase proteins could participate in intracellular signaling.

Relation to real molecules: CRP and other pentraxins are real extracellular opsonins; CRPlla is fictional and should not be confused with C-reactive protein or known pattern-recognition receptors.

See also: C-reactive protein, pentraxins, pattern recognition receptors.