  We show the first results for parton distribution functions within the proton
at the physical pion mass, employing the method of quasi-distributions. In
particular, we present the matrix elements for the iso-vector combination of
the unpolarized, helicity and transversity quasi-distributions, obtained with
$N_f=2$ twisted mass clover-improved fermions and a proton boosted with
momentum $|\vec{p}|=0.83\mbox{ GeV}$. The momentum smearing technique has been
applied to improve the overlap with the proton boosted state. Moreover, we
present the renormalized helicity matrix elements in the RI$'$ scheme,
following the non-perturbative renormalization prescription recently developed
by our group.
