Myosin and Kinesin motor domain; Myosin and Kinesin motor domain. These ATPases belong to the ...
420-734
3.70e-146
Myosin and Kinesin motor domain; Myosin and Kinesin motor domain. These ATPases belong to the P-loop NTPase family and provide the driving force in myosin and kinesin mediated processes. Some of the names do not match with what is given in the sequence list. This is because they are based on the current nomenclature by Kollmar/Sebe-Pedros.
The actual alignment was detected with superfamily member cd01366:
Pssm-ID: 473979 [Multi-domain] Cd Length: 329 Bit Score: 437.03 E-value: 3.70e-146
calponin homology (CH) domain superfamily; CH domains are actin filament (F-actin) binding motifs, which may be present as a single copy or in tandem repeats (which increase binding affinity). They either function as autonomous actin binding motifs or serve a regulatory function. CH domains are found in cytoskeletal and signal transduction proteins, including actin-binding proteins like spectrin, alpha-actinin, dystrophin, utrophin, and fimbrin, as well as proteins essential for regulation of cell shape (cortexillins), and signaling proteins (Vav).
The actual alignment was detected with superfamily member cd21203:
Pssm-ID: 469584 [Multi-domain] Cd Length: 112 Bit Score: 109.81 E-value: 2.85e-28
Kinesin motor domain, KIFC2/KIFC3/ncd-like carboxy-terminal kinesins; Kinesin motor domain, ...
420-734
3.70e-146
Kinesin motor domain, KIFC2/KIFC3/ncd-like carboxy-terminal kinesins; Kinesin motor domain, KIFC2/KIFC3/ncd-like carboxy-terminal kinesins. Ncd is a spindle motor protein necessary for chromosome segregation in meiosis. KIFC2/KIFC3-like kinesins have been implicated in motility of the Golgi apparatus as well as dentritic and axonal transport in neurons. 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 this subgroup the motor domain is found at the C-terminus (C-type). C-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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276817 [Multi-domain] Cd Length: 329 Bit Score: 437.03 E-value: 3.70e-146
Kinesin motor, catalytic domain. ATPase; Microtubule-dependent molecular motors that play ...
422-738
5.28e-136
Kinesin motor, catalytic domain. ATPase; Microtubule-dependent molecular motors that play important roles in intracellular transport of organelles and in cell division.
Pssm-ID: 214526 [Multi-domain] Cd Length: 335 Bit Score: 410.81 E-value: 5.28e-136
calponin homology (CH) domain found in Arabidopsis thaliana Kinesin-like KIN-14 protein family; ...
42-119
2.85e-28
calponin homology (CH) domain found in Arabidopsis thaliana Kinesin-like KIN-14 protein family; Kinesins are microtubule-dependent molecular motors that play important roles in intracellular transport and in cell division. This family includes a group of kinesin-like proteins belonging to KIN-14 protein family. They all contain a single copy of the CH domain at the N-terminus. CH domains are actin filament (F-actin) binding motifs.
Pssm-ID: 409052 [Multi-domain] Cd Length: 112 Bit Score: 109.81 E-value: 2.85e-28
Calponin homology domain; Actin binding domains present in duplicate at the N-termini of ...
46-113
7.70e-06
Calponin homology domain; Actin binding domains present in duplicate at the N-termini of spectrin-like proteins (including dystrophin, alpha-actinin). These domains cross-link actin filaments into bundles and networks. A calponin homology domain is predicted in yeasst Cdc24p.
Pssm-ID: 214479 [Multi-domain] Cd Length: 101 Bit Score: 45.38 E-value: 7.70e-06
Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal ...
44-119
9.95e-05
Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal transduction proteins. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin have only a single copy.
Pssm-ID: 425596 [Multi-domain] Cd Length: 109 Bit Score: 42.66 E-value: 9.95e-05
Leucine-rich repeats of kinetochore protein Cenp-F/LEK1; Cenp-F, a centromeric kinetochore, ...
275-371
4.36e-03
Leucine-rich repeats of kinetochore protein Cenp-F/LEK1; Cenp-F, a centromeric kinetochore, microtubule-binding protein consisting of two 1,600-amino acid-long coils, is essential for the full functioning of the mitotic checkpoint pathway. There are several leucine-rich repeats along the sequence of LEK1 that are considered to be zippers, though they do not appear to be binding DNA directly in this instance.
Pssm-ID: 463102 [Multi-domain] Cd Length: 140 Bit Score: 38.43 E-value: 4.36e-03
Kinesin motor domain, KIFC2/KIFC3/ncd-like carboxy-terminal kinesins; Kinesin motor domain, ...
420-734
3.70e-146
Kinesin motor domain, KIFC2/KIFC3/ncd-like carboxy-terminal kinesins; Kinesin motor domain, KIFC2/KIFC3/ncd-like carboxy-terminal kinesins. Ncd is a spindle motor protein necessary for chromosome segregation in meiosis. KIFC2/KIFC3-like kinesins have been implicated in motility of the Golgi apparatus as well as dentritic and axonal transport in neurons. 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 this subgroup the motor domain is found at the C-terminus (C-type). C-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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276817 [Multi-domain] Cd Length: 329 Bit Score: 437.03 E-value: 3.70e-146
Kinesin motor, catalytic domain. ATPase; Microtubule-dependent molecular motors that play ...
422-738
5.28e-136
Kinesin motor, catalytic domain. ATPase; Microtubule-dependent molecular motors that play important roles in intracellular transport of organelles and in cell division.
Pssm-ID: 214526 [Multi-domain] Cd Length: 335 Bit Score: 410.81 E-value: 5.28e-136
Kinesin motor domain; Kinesin motor domain. This catalytic (head) domain has ATPase activity ...
422-729
2.10e-113
Kinesin motor domain; Kinesin motor domain. 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), in some its is found in the middle (M-type), or C-terminal (C-type). N-type and M-type kinesins are (+) end-directed motors, while C-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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276812 [Multi-domain] Cd Length: 326 Bit Score: 351.56 E-value: 2.10e-113
Kinesin motor domain, kinesins II or KIF3_like proteins; Kinesin motor domain, kinesins II or ...
422-728
2.02e-94
Kinesin motor domain, kinesins II or KIF3_like proteins; Kinesin motor domain, kinesins II or KIF3_like proteins. Subgroup of kinesins, which form heterotrimers composed of 2 kinesins and one non-motor accessory subunit. Kinesins II play important roles in ciliary transport, and have been implicated in neuronal transport, melanosome transport, the secretory pathway, and 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 this group 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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276822 [Multi-domain] Cd Length: 334 Bit Score: 301.69 E-value: 2.02e-94
Kinesin motor domain, kinesin heavy chain (KHC) or KIF5-like subgroup; Kinesin motor domain, ...
422-728
1.72e-88
Kinesin motor domain, kinesin heavy chain (KHC) or KIF5-like subgroup; Kinesin motor domain, kinesin heavy chain (KHC) or KIF5-like subgroup. Members of this group have been associated with organelle transport. 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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276820 [Multi-domain] Cd Length: 325 Bit Score: 285.76 E-value: 1.72e-88
Kinesin motor domain, KIF4-like subfamily; Kinesin motor domain, KIF4-like subfamily. Members ...
423-728
1.29e-86
Kinesin motor domain, KIF4-like subfamily; 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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276823 [Multi-domain] Cd Length: 341 Bit Score: 281.14 E-value: 1.29e-86
Kinesin motor domain, KIP3-like subgroup; Kinesin motor domain, KIP3-like subgroup. The yeast ...
422-728
8.63e-84
Kinesin motor domain, KIP3-like subgroup; Kinesin motor domain, KIP3-like subgroup. The yeast kinesin KIP3 plays a role in positioning the mitotic spindle. 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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276821 [Multi-domain] Cd Length: 345 Bit Score: 273.84 E-value: 8.63e-84
Kinesin motor domain, CENP-E/KIP2-like subgroup; Kinesin motor domain, CENP-E/KIP2-like ...
422-728
1.04e-82
Kinesin motor domain, CENP-E/KIP2-like subgroup; Kinesin motor domain, CENP-E/KIP2-like subgroup, involved in chromosome movement and/or spindle elongation 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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276825 [Multi-domain] Cd Length: 321 Bit Score: 269.97 E-value: 1.04e-82
Kinesin motor domain, BimC/Eg5 spindle pole proteins; Kinesin motor domain, BimC/Eg5 spindle ...
422-728
1.06e-80
Kinesin motor domain, BimC/Eg5 spindle pole proteins; Kinesin motor domain, BimC/Eg5 spindle pole proteins, participate in spindle assembly and chromosome segregation during cell division. 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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276815 [Multi-domain] Cd Length: 353 Bit Score: 265.73 E-value: 1.06e-80
Kinesin motor domain, KIF1_like proteins; Kinesin motor domain, KIF1_like proteins. KIF1A ...
421-729
3.51e-79
Kinesin motor domain, KIF1_like proteins; Kinesin motor domain, KIF1_like proteins. KIF1A (Unc104) transports synaptic vesicles to the nerve terminal, KIF1B has been implicated in transport of mitochondria. Both proteins are expressed in neurons. 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. In contrast to the majority of dimeric kinesins, most KIF1A/Unc104 kinesins are monomeric motors. A lysine-rich loop in KIF1A binds to the negatively charged C-terminus of tubulin and compensates for the lack of a second motor domain, allowing KIF1A to move processively.
Pssm-ID: 276816 [Multi-domain] Cd Length: 361 Bit Score: 261.90 E-value: 3.51e-79
Kinesin motor domain, KIF2-like group; Kinesin motor domain, KIF2-like group. KIF2 is a ...
422-729
7.77e-72
Kinesin motor domain, KIF2-like group; Kinesin motor domain, KIF2-like group. KIF2 is a protein expressed in neurons, which has been associated with axonal transport and neuron development; alternative splice forms have been implicated in lysosomal translocation. 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 this subgroup the motor domain is found in the middle (M-type) of the protein chain. M-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 (KIF2 may be slower). 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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276818 [Multi-domain] Cd Length: 328 Bit Score: 240.66 E-value: 7.77e-72
Kinesin motor domain, KIF15-like subgroup; Kinesin motor domain, KIF15-like subgroup. Members ...
422-729
1.31e-71
Kinesin motor domain, KIF15-like subgroup; Kinesin motor domain, KIF15-like subgroup. Members of this subgroup seem to play a role in mitosis and meiosis. 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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276824 [Multi-domain] Cd Length: 347 Bit Score: 240.87 E-value: 1.31e-71
Kinesin motor domain, KIF23-like subgroup; Kinesin motor domain, KIF23-like subgroup. Members ...
423-727
1.80e-69
Kinesin motor domain, KIF23-like subgroup; Kinesin motor domain, KIF23-like subgroup. Members of this group may play a role in 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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276819 [Multi-domain] Cd Length: 345 Bit Score: 234.98 E-value: 1.80e-69
Kinesin motor domain, KIF9-like subgroup; Kinesin motor domain, KIF9-like subgroup; might play ...
423-729
2.83e-69
Kinesin motor domain, KIF9-like subgroup; Kinesin motor domain, KIF9-like subgroup; might play a role in cell shape remodeling. 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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276826 [Multi-domain] Cd Length: 334 Bit Score: 234.01 E-value: 2.83e-69
Kinesin motor domain, KIF22/Kid-like subgroup; Kinesin motor domain, KIF22/Kid-like subgroup. ...
422-728
5.97e-68
Kinesin motor domain, KIF22/Kid-like subgroup; Kinesin motor domain, KIF22/Kid-like subgroup. Members of this group might play a role in regulating chromosomal movement along microtubules in 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, which repositions the other head domain through the coiled-coil domain close to a second tubulin dimer, about 80 Angstroms along the microtubule. Meanwhile, ATP hydrolysis takes place, and when the second head domain binds to the microtubule, the first domain again replaces ADP with ATP, triggering a conformational change that pulls the first domain forward.
Pssm-ID: 276827 [Multi-domain] Cd Length: 319 Bit Score: 229.70 E-value: 5.97e-68
calponin homology (CH) domain found in Arabidopsis thaliana Kinesin-like KIN-14 protein family; ...
42-119
2.85e-28
calponin homology (CH) domain found in Arabidopsis thaliana Kinesin-like KIN-14 protein family; Kinesins are microtubule-dependent molecular motors that play important roles in intracellular transport and in cell division. This family includes a group of kinesin-like proteins belonging to KIN-14 protein family. They all contain a single copy of the CH domain at the N-terminus. CH domains are actin filament (F-actin) binding motifs.
Pssm-ID: 409052 [Multi-domain] Cd Length: 112 Bit Score: 109.81 E-value: 2.85e-28
Myosin and Kinesin motor domain; Myosin and Kinesin motor domain. These ATPases belong to the ...
425-674
1.58e-25
Myosin and Kinesin motor domain; Myosin and Kinesin motor domain. These ATPases belong to the P-loop NTPase family and provide the driving force in myosin and kinesin mediated processes. Some of the names do not match with what is given in the sequence list. This is because they are based on the current nomenclature by Kollmar/Sebe-Pedros.
Pssm-ID: 276814 [Multi-domain] Cd Length: 170 Bit Score: 103.96 E-value: 1.58e-25
calponin homology (CH) domain found in Drosophila melanogaster muscle-specific protein 20 ...
71-116
4.30e-06
calponin homology (CH) domain found in Drosophila melanogaster muscle-specific protein 20 (dMP20) and similar domains; This subfamily contains Drosophila melanogaster muscle-specific protein 20 (dMP20), Echinococcus granulosus myophilin, Dictyostelium discoideum Rac guanine nucleotide exchange factor B (also called Trix), and similar proteins. dMP20 is present only in the synchronous muscles of D. melanogaster. It may be involved in the system linking the nerve impulse with the contraction or the relaxation process. Trix is involved in the regulation of the late steps of the endocytic pathway. dMP20 contains a single copy of the CH domain, while Trix (triple CH-domain array exchange factor) contains three, two type 3 CH domains which are included in this model, and one type 1 CH domain that is not included in this subfamily, but is part of the superfamily. CH domains are actin filament (F-actin) binding motifs.
Pssm-ID: 409056 [Multi-domain] Cd Length: 107 Bit Score: 46.53 E-value: 4.30e-06
calponin homology (CH) domain superfamily; CH domains are actin filament (F-actin) binding motifs, which may be present as a single copy or in tandem repeats (which increase binding affinity). They either function as autonomous actin binding motifs or serve a regulatory function. CH domains are found in cytoskeletal and signal transduction proteins, including actin-binding proteins like spectrin, alpha-actinin, dystrophin, utrophin, and fimbrin, as well as proteins essential for regulation of cell shape (cortexillins), and signaling proteins (Vav).
Pssm-ID: 409031 [Multi-domain] Cd Length: 103 Bit Score: 46.18 E-value: 4.35e-06
Calponin homology domain; Actin binding domains present in duplicate at the N-termini of ...
46-113
7.70e-06
Calponin homology domain; Actin binding domains present in duplicate at the N-termini of spectrin-like proteins (including dystrophin, alpha-actinin). These domains cross-link actin filaments into bundles and networks. A calponin homology domain is predicted in yeasst Cdc24p.
Pssm-ID: 214479 [Multi-domain] Cd Length: 101 Bit Score: 45.38 E-value: 7.70e-06
Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal ...
44-119
9.95e-05
Calponin homology (CH) domain; The CH domain is found in both cytoskeletal proteins and signal transduction proteins. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin have only a single copy.
Pssm-ID: 425596 [Multi-domain] Cd Length: 109 Bit Score: 42.66 E-value: 9.95e-05
calponin homology (CH) domain found in VAV proteins; VAV proteins function both as cytoplasmic ...
47-109
4.42e-04
calponin homology (CH) domain found in VAV proteins; VAV proteins function both as cytoplasmic guanine nucleotide exchange factors (GEFs) for Rho GTPases and as scaffold proteins, and they play important roles in cell signaling by coupling cell surface receptors to various effector functions. They play key roles in processes that require cytoskeletal reorganization including immune synapse formation, phagocytosis, cell spreading, and platelet aggregation, among others. Vertebrates have three VAV proteins (VAV1, VAV2, and VAV3). VAV proteins contain several domains that enable their function: N-terminal calponin homology (CH), acidic, RhoGEF (also called Dbl-homologous or DH), Pleckstrin Homology (PH), C1 (zinc finger), SH2, and two SH3 domains. This model corresponds to the CH domain, an actin-binding domain which is present as a single copy in VAV proteins.
Pssm-ID: 409050 Cd Length: 117 Bit Score: 40.70 E-value: 4.42e-04
calponin homology (CH) domain found in alpha-Pak Interactive eXchange factor; Alpha-Pak ...
47-119
4.48e-04
calponin homology (CH) domain found in alpha-Pak Interactive eXchange factor; Alpha-Pak Interactive eXchange factor (alpha-PIX), also called PAK-interacting exchange factor alpha, Rho guanine nucleotide exchange factor 6 (ARHGEF6), Rac/Cdc42 guanine nucleotide exchange factor 6, or Cool (Cloned out of Library)-2, activates small GTPases by exchanging bound GDP for free GTP. It acts as a GEF for both Cdc42 and Rac1, and is localized in dendritic spines where it regulates spine morphogenesis. It controls dendritic length and spine density in the hippocampus. Mutations in the ARHGEF6 gene cause X-linked intellectual disability in humans. Alpha-PIX contains a single copy of the CH domain at its N-terminus. CH domains are actin filament (F-actin) binding motifs.
Pssm-ID: 409114 Cd Length: 117 Bit Score: 40.96 E-value: 4.48e-04
Leucine-rich repeats of kinetochore protein Cenp-F/LEK1; Cenp-F, a centromeric kinetochore, ...
275-371
4.36e-03
Leucine-rich repeats of kinetochore protein Cenp-F/LEK1; Cenp-F, a centromeric kinetochore, microtubule-binding protein consisting of two 1,600-amino acid-long coils, is essential for the full functioning of the mitotic checkpoint pathway. There are several leucine-rich repeats along the sequence of LEK1 that are considered to be zippers, though they do not appear to be binding DNA directly in this instance.
Pssm-ID: 463102 [Multi-domain] Cd Length: 140 Bit Score: 38.43 E-value: 4.36e-03
calponin homology (CH) domain found in the IQ motif containing GTPase activating protein ...
48-119
6.25e-03
calponin homology (CH) domain found in the IQ motif containing GTPase activating protein family; Members of the IQ motif containing GTPase activating protein (IQGAP) family are associated with the Ras GTP-binding protein and act as essential regulators of cytoskeletal function. There are three known IQGAP family members: IQGAP1, IQGAP2, and IQGAP3. They are multi-domain molecules having a calponin-homology (CH) domain which binds F-actin, IQGAP-specific repeats, a single WW domain, four IQ motifs that mediate interactions with calmodulin, and a RasGAP related domain that binds active Rho family GTPases. IQGAP1 negatively regulates Ras family GTPases by stimulating their intrinsic GTPase activity. It lacks GAP activity. Both IQGAP1 and IQGAP2 specifically bind to Cdc42 and Rac1, but not to RhoA. Despite similarities to part of the sequence of RasGAP, neither IQGAP1 nor IQGAP2 interacts with Ras. IQGAP3 regulates the organization of the cytoskeleton under the regulation of Rac1 and Cdc42 in neuronal cells. The depletion of IQGAP3 is shown to impair neurite or axon outgrowth in neuronal cells with disorganized cytoskeleton.
Pssm-ID: 409055 [Multi-domain] Cd Length: 118 Bit Score: 37.59 E-value: 6.25e-03
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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The thumbnail image, if present, provides an approximate view of the feature's location in 3 dimensions.
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Functional characterization of the conserved domain architecture found on the query.
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This image shows a graphical summary of conserved domains identified on the query sequence.
The Show Concise/Full Display button at the top of the page can be used to select the desired level of detail: only top scoring hits
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if a domain or superfamily has been annotated with functional sites (conserved features),
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click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
Click on the domain model's accession number to view the multiple sequence alignment of the proteins used to develop the corresponding domain model.
To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
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Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
(labeled illustration) Full Display shows all domain models, in each hit category below, that meet or exceed the RPS-BLAST threshold for statistical significance.
(labeled illustration) Four types of hits can be shown, as available,
for each region on the query sequence:
specific hits meet or exceed a domain-specific e-value threshold
(illustrated example)
and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
non-specific hits
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the domain superfamily to which the specific and non-specific hits belong
multi-domain models that were computationally detected and are likely to contain multiple single domains
Retrieve proteins that contain one or more of the domains present in the query sequence, using the Conserved Domain Architecture Retrieval Tool
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