  The charge and spin-dependent thermoelectric responses are investigated on a
single-helical molecule possessing a collinear antiferromagnetic spin
arrangement with zero net magnetization in the presence of a transverse
electric field. Both the short and long-range hopping scenarios are considered,
which mimic biological systems like single-stranded DNA and $\alpha$-protein
molecules. A non-equilibrium Green's function formalism is employed following
the Landauer-Buttiker prescription to study the thermoelectric phenomena. The
detailed dependence of the basic thermoelectric quantities on helicity,
electric field, temperature etc., are elaborated on, and the underlying physics
is explained accordingly. The charge and spin \textit{figure of merits} are
computed and compared critically. For a more accurate estimation, the phononic
contribution towards thermal conductance is also included. The present
proposition shows a favorable spin-dependent thermoelectric response compared
to the charge counterpart.
