Probing the Domain Motions of an Oligomeric Protein from Deep-Sea Hyperthermophile by Neutron Spin Echo

Life is traditionally seen as being driven by energy from the sun, however deep sea organisms have no access to sunlight, so they depend on nutrients found in the dusty chemical deposits and hydrothermal fluids around the hydrothermal vent zones, where they live. In this study, we use neutron spin-echo spectroscopy (NSE) to measure the inter-domain motions of the inorganic pyrophosphatase (IPPase) enzyme derived from thermostable microorganisms....