  Voltage-gated sodium (Nav) channels constitute a prime target for drug design
and discovery, given their implication in various diseases such as epilepsy,
migraine and ataxia to name a few. In this regard, performing morphological
analysis is a crucial step in comprehensively understanding their biological
function and mechanism, as well as in uncovering subtle details of their
mechanism that may be elusive to experimental observations. Despite their
tremendous therapeutic potential, drug design resources are deficient,
particularly in terms of accurate and comprehensive geometric information. This
paper presents a geometric dataset of molecular surfaces that are
representative of Nav channels in mammals. For each structure we provide three
representations and a number of geometric measures, including length, volume
and straightness of the recognized channels. To demonstrate the effective use
of GEO-Nav, we have tested it on two methods belonging to two different
categories of approaches: a sphere-based and a tessellation-based method.
