Sentence examples for their exact roles from inspiring English sources

There is evidence that nitric oxide may be the neurotransmitter responsible for inhibition effect.20 Many other neuropeptides have been identified in esophageal neural tissue, although their exact roles remain unknown.

The cellular retinoic acid (RA) binding proteins I and II (CRABPI and CRABPII), intracellular proteins which bind retinoic acid with high affinity, are involved in the actions of RA, though their exact roles are not fully understood.

These folks can tackle anything we run into, even if they may not have training for their exact roles.

However, their exact roles, legitimacy, and impact at different administrative levels vary considerably, which can complicate transnational collaboration (OECD 2015).

Although mechanical regulation of protein dynamics has been proposed to play a major role in force transmission during cell migration, the key proteins and their exact roles are not completely understood.

A comprehensive list of BMPR2 mutations has been summarized (Machado et al., 2006); however, their exact roles in diverse temporospatial contexts of complex PH remain unclear, such as gender bias (Liu et al., 2012).

Their exact role hasn't been closely studied, however.

"Their exact role is still open to question," he said.

Despite this, their exact role in osteogenesis is poorly characterized.

However, their exact role is yet to be established.

However, their exact role is yet to be explored.