  There has been growing evidence that the infrared enhancement of the form
factors defining the full quark-gluon vertex plays an important role in
realizing a dynamical breakdown of chiral symmetry in quantum chromodynamics,
leading to the observed spectrum and properties of hadrons. Both the lattice
and the Schwinger-Dyson communities have begun to calculate these form factors
in various kinematical regimes of momenta involved. A natural consistency check
for these studies is that they should match onto the perturbative predictions
in the ultraviolet, where non-perturbative effects mellow down. In this
article, we carry out a numerical analysis of the one-loop result for all the
form factors of the quark-gluon vertex. Interestingly, even the one-loop
results qualitatively encode most of the infrared enhancement features expected
of their non-perturbative counter parts. We analyze various kinematical
configurations of momenta: symmetric, on-shell and asymptotic. The on-shell
limit enables us to compute anomalous chromomagnetic moment of quarks. The
asymptotic results have implications for the multiplicative renormalizability
of the quark propagator and its connection with the Landau-Khalatnikov-Fradkin
transformations, allowing us to analyze and compare various Ans$\ddot{a}$tze
proposed so far.
