  We consider the effect of exact gluon kinematics in the virtual photon-gluon
impact factor at small x. By comparing with fixed order DIS scheme splitting
and coefficient functions, we show that the exact kinematics results match the
fixed order results well at each order, which suggests that they allow for an
accurate NLL analysis of proton structure functions. We also present, available
for the first time, x-space parameterisations of the NNLO DGLAP splitting
functions in the DIS scheme, and also the longitudinal coefficients for neutral
current scattering.
