>cd01372 KISc_KIF4 Kinesin motor domain, KIF4-like subfamily. Members of this group seem to perform a variety of functions, and have been implicated in neuronal organelle transport and chromosome segregation during mitosis. This catalytic (head) domain has ATPase activity and belongs to the larger group of P-loop NTPases. Kinesins are microtubule-dependent molecular motors that play important roles in intracellular transport and in cell division. In most kinesins, the motor domain is found at the N-terminus (N-type). N-type kinesins are (+) end-directed motors, i.e. they transport cargo towards the (+) end of the microtubule. Kinesin motor domains hydrolyze ATP at a rate of about 80 per second, and move along the microtubule at a speed of about 6400 Angstroms per second. To achieve that, kinesin head groups work in pairs. Upon replacing ADP with ATP, a kinesin motor domain increases its affinity for microtubule binding and locks in place. Also, the neck linker binds to the motor domain,

Probab=95.81  E-value=0.0055  Score=38.27  Aligned_cols=50  Identities=20%  Similarity=0.205  Sum_probs=33.9

Q ss_pred             CCCCCCCCCCEEEC-CCHHHHHH-----HHHHHHCCCCCEEEEECCCCCCHHHHHH
Q ss_conf             87766884541653-61899999-----9985101678849998787778688999
Q gi|254780567|r   33 PRCLGISRDDLLVH-SAIEQAVR-----LIDSWPSWPSRVVILVGPSGSGKSCLAN   82 (246)
Q Consensus        33 ~~~~~~~~dnFiv~-~~N~~A~~-----~i~~~~~~~~~~l~i~G~~GsGKTHLl~   82 (246)
T Consensus        37 ~~~~~f~FD~Vf~~~~sQ~~Vy~~~~~plv~~~l~G~n~ti~aYGqTGSGKTyTm~   92 (341)
T cd01372          37 GTDKSFTFDYVFDPSTSQEEVYNTCVAPLVDGLFEGYNATVLAYGQTGSGKTYTMG   92 (341)
T ss_pred             CCCCEEECCEECCCCCCHHHHHHHHHHHHHHHHHCCCCEEEEEECCCCCCCCCCCC
T ss_conf             89826876977599999899999998999999867775169997147889864413