1. Molecular motors: Kinesin's string variable
R.A Cross 
Current Biology 
Volume 11, Issue 4, Pages R147-R149 (February 2001)
DOI: /S (01)

2. Fig. 1
(a) The essential feature of the Rice et al.[5] scheme, in which ATP binding induces neck linker docking and places the leading head adjacent to its next site. (b) An alternative scheme, in which the neck linker docking and undocking is a low energy transition, for which ATP binding slightly biases the equilibrium towards undocking.
Current Biology  , R147-R149DOI: ( /S (01) )

3. Fig. 2
Amino acid sequences of the neck linker and surrounding regions for representative members of kinesin subfamilies. Grey letters indicate α helix 6 and bold letters the neck linker, with prolines highlighted in purple. The red stripes in the following neck helix mark the hydrophobic heptad repeat predictive of coiled coil. Swissprot accession codes are on the right.
Current Biology  , R147-R149DOI: ( /S (01) )