>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=92.79  E-value=0.054  Score=34.22  Aligned_cols=53  Identities=19%  Similarity=0.324  Sum_probs=35.2

Q ss_pred             CCHHHHHHHC-CCCCHHHHHHH-HHHHHHCCCCCCCCCCCCEEEEECCCCCCHHHHHHH
Q ss_conf             6447887632-88614789999-999982410013655555489862788885799999
Q gi|254780627|r  159 DSRFVFSTFI-EGSSNRVALTA-AQSIAEVDSHGYTTVRLNPLFIHASVGLGKTHLLQA  215 (502)
Q Consensus       159 NpryTFDnFV-VG~sN~lA~aA-AkaVAe~pg~~~~~~~~NPLfi~G~~GlGKTHLl~a  215 (502)
T Consensus        39 ~~~f~FD~Vf~~~~sQ~~Vy~~~~~plv~~~l~G~n~----ti~aYGqTGSGKTyTm~G   93 (341)
T cd01372          39 DKSFTFDYVFDPSTSQEEVYNTCVAPLVDGLFEGYNA----TVLAYGQTGSGKTYTMGT   93 (341)
T ss_pred             CCEEECCEECCCCCCHHHHHHHHHHHHHHHHHCCCCE----EEEEECCCCCCCCCCCCC
T ss_conf             8268769775999998999999989999998677751----699971478898644136