>cd01385 MYSc_type_IX Myosin motor domain, type IX myosins. Myosin IX is a processive single-headed motor, which might play a role in signalling. This catalytic (head) domain has ATPase activity and belongs to the larger group of P-loop NTPases. Myosins are actin-dependent molecular motors that play important roles in muscle contraction, cell motility, and organelle transport. The head domain is a molecular motor, which utilizes ATP hydrolysis to generate directed movement toward the plus end along actin filaments. A cyclical interaction between myosin and actin provides the driving force. Rates of ATP hydrolysis and consequently the speed of movement along actin filaments vary widely, from about 0.04 micrometer per second for myosin I to 4.5 micrometer per second for myosin II in skeletal muscle. Myosin II moves in discrete steps about 5-10 nm long and generates 1-5 piconewtons of force. Upon ATP binding, the myosin head dissociates from an actin filament. ATP hydrolysis causes the hea

Probab=93.93  E-value=0.077  Score=32.63  Aligned_cols=23  Identities=35%  Similarity=0.548  Sum_probs=19.3

Q ss_pred             CCCEEEEEECCCCCHHHHHHHHH
Q ss_conf             43204887327774367999999
Q gi|254780916|r  161 DCAIPIMIQGEFGVGKKRLSRFI  183 (482)
Q Consensus       161 ~~~~~vli~Ge~GtGK~~~A~~i  183 (482)
T Consensus        92 ~~~QsIiiSGESGaGKTe~~K~i  114 (692)
T cd01385          92 KVNQCIVISGESGSGKTESTNFL  114 (692)
T ss_pred             CCCEEEEEECCCCCCHHHHHHHH
T ss_conf             99828999648989878999999