Recombinant Human NPR-B protein

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

NPR-B also known as natriuretic peptide receptor B or NPR2 functions as a guanylyl cyclase receptor. This protein which has a molecular mass of approximately 116 kDa plays an important role in transducing signals from extracellular ligands such as C-type natriuretic peptide (CNP) into the generation of cyclic guanosine monophosphate (cGMP). Expression of NPR-B is notably high in tissues like cartilage brain and reproductive organs where it facilitates various physiological processes.

Biological function summary

NPR-B interacts with specific peptides to regulate bone growth and skeletal development. As part of the receptor complex that includes natriuretic peptide receptors it achieves these functions by modulating cellular responses through cGMP-dependent signaling mechanisms. NPR-B aids in the control of key physiological processes like growth plate chondrocyte maturation which is essential for proper bone length.

Pathways

NPR-B is heavily involved in the natriuretic peptide signaling pathway where it contributes to regulating blood pressure and volume homeostasis. This protein through cGMP production also links to the cGMP-PKG pathway interacting closely with proteins such as NPR-A which primarily responds to atrial natriuretic peptide (ANP). The precise modulation of these pathways affects cardiovascular and skeletal systems highlighting the integrated nature of these biological processes.

Mutations or dysfunction in NPR-B relate to disorders like short stature due to impaired endochondral ossification and certain conditions linked to hypertension. NPR-B dysfunction has associations with conditions such as acromesomelic dysplasia type Maroteaux where its signaling partners like C-type natriuretic peptide become critically significant. Understanding NPR-B's role in these conditions offers insights into potential therapeutic interventions targeted at these pathways.