Motor protein that may participate in process critical to neuronal development and function such as cell migration, neurite outgrowth and vesicular transport. Homo sapiens (taxid: 9606)
Motor protein that may participate in process critical to neuronal development and function such as cell migration, neurite outgrowth and vesicular transport.
Motor protein that may participate in process critical to neuronal development and function such as cell migration, neurite outgrowth and vesicular transport.
Score = 114 bits (284), Expect = 3e-25, Method: Composition-based stats.
Identities = 53/110 (48%), Positives = 71/110 (64%)
Query: 1 MKNLSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHF 60
M+ L SKQ YVRCI+PN P F+ L++HQVKYLGL+E VR+RR+GF YR YE F
Sbjct: 577 MEILMSKQPSYVRCIKPNDAKQPARFDEVLIRHQVKYLGLIENVRVRRAGFAYRRKYEIF 636
Query: 61 VSRYKLLSPRTWPFPLCSPIEAVHVILHGLPIPHGEFAFGRSKLFVRSPR 110
+ RYK L P TWP ++ V V++ L E+ GR+K+F+R P+
Sbjct: 637 LQRYKSLCPDTWPNWDGRAMDGVAVLVKSLGYKPEEYKMGRTKIFIRFPK 686
Myosins are actin-based motor molecules with ATPase activity. Unconventional myosins serve in intracellular movements. Their highly divergent tails are presumed to bind to membranous compartments, which would be moved relative to actin filaments.
Score = 111 bits (277), Expect = 2e-24, Method: Compositional matrix adjust.
Identities = 56/110 (50%), Positives = 70/110 (63%)
Query: 1 MKNLSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHF 60
M L SK+ YVRCI+PN G P F+ LV+HQVKYLGL+E +R+RR+GF YR YE F
Sbjct: 576 MDILMSKEPSYVRCIKPNDGKQPGRFDEVLVRHQVKYLGLMENLRVRRAGFAYRRSYEAF 635
Query: 61 VSRYKLLSPRTWPFPLCSPIEAVHVILHGLPIPHGEFAFGRSKLFVRSPR 110
+ RYK L P TWP + E V ++ L EF GRSK+F+R PR
Sbjct: 636 LERYKSLCPDTWPNWHGNLPEGVATLVKHLNYKPEEFKLGRSKIFIRFPR 685
Myosins are actin-based motor molecules with ATPase activity. Unconventional myosins serve in intracellular movements. Their highly divergent tails are presumed to bind to membranous compartments, which would be moved relative to actin filaments.
Score = 110 bits (275), Expect = 3e-24, Method: Compositional matrix adjust.
Identities = 52/107 (48%), Positives = 69/107 (64%)
Query: 4 LSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHFVSR 63
L SK+ YVRCI+PN P F+ L++HQVKYLGLLE +R+RR+GF YR YE F+ R
Sbjct: 615 LQSKEPAYVRCIKPNDAKQPGRFDEVLIRHQVKYLGLLENLRVRRAGFAYRRKYEAFLQR 674
Query: 64 YKLLSPRTWPFPLCSPIEAVHVILHGLPIPHGEFAFGRSKLFVRSPR 110
YK L P TWP P + V V++ L E+ GR+K+F+R P+
Sbjct: 675 YKSLCPETWPTWAGRPQDGVAVLVRHLGYKPEEYKMGRTKIFIRFPK 721
Isoform 3 is involved in regulation of transcription. Associated with transcriptional active ribosomal genes. Appears to cooperate with the WICH chromatin-remodeling complex to facilitate transcription. Necessary for the formation of the first phosphodiester bond during transcription initiation.
Score = 110 bits (274), Expect = 4e-24, Method: Composition-based stats.
Identities = 50/110 (45%), Positives = 70/110 (63%)
Query: 1 MKNLSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHF 60
M+ L SK+ Y+RCI+PN F+ L++HQVKYLGL+E +R+RR+GF YR YE F
Sbjct: 577 MEILMSKEPSYIRCIKPNDAKQADRFDEVLIRHQVKYLGLMENLRVRRAGFAYRRKYEVF 636
Query: 61 VSRYKLLSPRTWPFPLCSPIEAVHVILHGLPIPHGEFAFGRSKLFVRSPR 110
+ RYK L P TWP P + V V++ L E+ GR+K+F+R P+
Sbjct: 637 LQRYKSLCPETWPTWDGRPHDGVAVLVKHLGYKQEEYKMGRTKIFIRFPK 686
Myosins are actin-based motor molecules with ATPase activity. Unconventional myosins serve in intracellular movements. Their highly divergent tails are presumed to bind to membranous compartments, which would be moved relative to actin filaments.
Score = 109 bits (273), Expect = 4e-24, Method: Compositional matrix adjust.
Identities = 50/107 (46%), Positives = 69/107 (64%)
Query: 4 LSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHFVSR 63
L SK+ Y+RCI+PN P F+ L++HQVKYLGL+E +R+RR+GF YR YE F+ R
Sbjct: 615 LRSKEPAYIRCIKPNDAKQPGRFDEVLIRHQVKYLGLMENLRVRRAGFAYRRKYEAFLQR 674
Query: 64 YKLLSPRTWPFPLCSPIEAVHVILHGLPIPHGEFAFGRSKLFVRSPR 110
YK L P TWP P + V V++ L E+ GR+K+F+R P+
Sbjct: 675 YKSLCPETWPMWAGRPQDGVAVLVRHLGYKPEEYKMGRTKIFIRFPK 721
Isoform 3 is involved in regulation of transcription. Associated with transcriptional active ribosomal genes. Appears to cooperate with the WICH chromatin-remodeling complex to facilitate transcription. Necessary for the formation of the first phosphodiester bond during transcription initiation.
Mus musculus (taxid: 10090)
Close Homologs in the Non-Redundant Database Detected by BLAST
Score = 156 bits (396), Expect = 6e-46
Identities = 52/110 (47%), Positives = 70/110 (63%)
Query: 1 MKNLSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHF 60
++ L HY+RCI+PN+ P F+ V HQVKYLGLLE VR+RR+GF YR ++ F
Sbjct: 556 VETLMKCTPHYIRCIKPNETKSPNDFDESRVLHQVKYLGLLENVRVRRAGFAYRQTFDKF 615
Query: 61 VSRYKLLSPRTWPFPLCSPIEAVHVILHGLPIPHGEFAFGRSKLFVRSPR 110
+ RYKLLSP+TWP V VIL L I E+ G++K+F+R+P
Sbjct: 616 LQRYKLLSPKTWPTWPGDAKSGVEVILKDLNIDPEEYQMGKTKIFIRNPE 665
Myosin I generates movement at the leading edge in cell motility, and class I myosins have been implicated in phagocytosis and vesicle transport. Myosin I, an unconventional myosin, does not form dimers. 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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the filament (power stroke). Release of ADP completes the cycle. Length = 674
Large ATPases. ATPase; molecular motor. Muscle contraction consists of a cyclical interaction between myosin and actin. The core of the myosin structure is similar in fold to that of kinesin. Length = 677
>gnl|CDD|215687 pfam00063, Myosin_head, Myosin head (motor domain)
Score = 124 bits (314), Expect = 1e-34
Identities = 42/108 (38%), Positives = 70/108 (64%), Gaps = 1/108 (0%)
Query: 1 MKNLSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHF 60
M L+S + H++RCI+PN+ P F++G V Q++YLG+LET+RIRR GF R+P++ F
Sbjct: 563 MATLNSTEPHFIRCIKPNEEKKPNAFDSGKVLQQLRYLGILETIRIRRLGFSVRIPFDEF 622
Query: 61 VSRYKLLSPRTWPFPLCSPIEAVHVILHGLPIPHGEFAFGRSKLFVRS 108
+SRY+ L+P + + V +L L +P E+ G++K+F++
Sbjct: 623 LSRYRFLAPDLLEKVSLTK-KQVECLLELLGLPKDEWQVGKTKVFLKE 669
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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the filament (power stroke). Release of ADP completes the cycle. Length = 679
>gnl|CDD|227355 COG5022, COG5022, Myosin heavy chain [Cytoskeleton]
Score = 91.9 bits (229), Expect = 4e-23
Identities = 39/108 (36%), Positives = 57/108 (52%)
Query: 1 MKNLSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHF 60
M L S H+VRCI PN+ P + LV Q++ G+LE +RI R GF R+ Y F
Sbjct: 576 MTTLRSTNPHFVRCIIPNEEKKPGKLDAHLVLDQLRCNGVLEGIRICRKGFPNRILYAEF 635
Query: 61 VSRYKLLSPRTWPFPLCSPIEAVHVILHGLPIPHGEFAFGRSKLFVRS 108
RY++L+P P +A IL L + ++ FG +K+F R+
Sbjct: 636 RQRYEILAPNAIPKGFMDSKKASEKILKSLELDPEQYRFGHTKVFFRA 683
Myosin II mediates cortical contraction in cell motility, and is the motor in smooth and skeletal muscle. 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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the filament (power stroke). Release of ADP completes the cycle. Length = 693
>gnl|CDD|238677 cd01381, MYSc_type_VII, Myosin motor domain, type VII myosins
Score = 89.4 bits (222), Expect = 3e-22
Identities = 35/108 (32%), Positives = 62/108 (57%), Gaps = 1/108 (0%)
Query: 1 MKNLSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHF 60
M+ LSS Q ++RCI+PN+ P +F+ L Q++Y G++ET+RIRR+G+ R + F
Sbjct: 553 MRTLSSCQPFFIRCIKPNEYKEPMVFDRELCVRQLRYSGMMETIRIRRAGYPIRHTFREF 612
Query: 61 VSRYKLLSPRTWPFPLCSPI-EAVHVILHGLPIPHGEFAFGRSKLFVR 107
V RY++L P P + I + + ++ G++K+F++
Sbjct: 613 VERYRVLVPGVKPAYKQDCLAGLAQRICEAVLLADDDWQLGKTKVFLK 660
Myosins in this group have been associated with functions in sensory systems such as vision and hearing. 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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the filament (power stroke). Release of ADP completes the cycle. Length = 671
>gnl|CDD|238679 cd01383, MYSc_type_VIII, Myosin motor domain, plant-specific type VIII myosins, a subgroup which has been associated with endocytosis, cytokinesis, cell-to-cell coupling and gating at plasmodesmata
Score = 81.0 bits (200), Expect = 3e-19
Identities = 38/109 (34%), Positives = 56/109 (51%), Gaps = 4/109 (3%)
Query: 1 MKNLSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHF 60
M+ L + H++RCI+PN P ++E GLV Q++ G+LE VRI RSG+ R+ ++ F
Sbjct: 562 MQQLENTTPHFIRCIKPNNKQLPGIYEQGLVLQQLRCCGVLEVVRISRSGYPTRMTHQEF 621
Query: 61 VSRYKLLSPRTWPFPLCSPIEAVHV-ILHGLPIPHGEFAFGRSKLFVRS 108
RY L +V V IL I + G +KLF R+
Sbjct: 622 ARRYGFLLLEN---IASQDPLSVSVAILQQFNILPEMYQVGYTKLFFRT 667
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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the filament (power stroke). Release of ADP completes the cycle. Length = 677
>gnl|CDD|238683 cd01387, MYSc_type_XV, Myosin motor domain, type XV myosins
In vertebrates, myosin XV appears to be expressed in sensory tissue and play a role in hearing. 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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the filament (power stroke). Release of ADP completes the cycle. Length = 677
>gnl|CDD|238676 cd01380, MYSc_type_V, Myosin motor domain, type V myosins
Score = 78.5 bits (194), Expect = 2e-18
Identities = 39/108 (36%), Positives = 57/108 (52%), Gaps = 1/108 (0%)
Query: 1 MKNLSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHF 60
M L+S HY+RCI+PN P FE V Q++ G+LET+RI +GF R YE F
Sbjct: 575 MSTLNSTNPHYIRCIKPNDEKKPFKFEPKRVLQQLRACGVLETIRISAAGFPSRWTYEEF 634
Query: 61 VSRYKLLSPRTWPFPLCSPIEAVHVILHGLPIPHGEFAFGRSKLFVRS 108
RY++L P P + IL + ++ FG++K+F R+
Sbjct: 635 AQRYRVLVPSK-ELWKSDPKQLCENILTKVIEDEDKYQFGKTKIFFRA 681
Myosins V transport a variety of intracellular cargo processively along actin filaments, such as membraneous organelles and mRNA. 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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the filament (power stroke). Release of ADP completes the cycle. Length = 691
>gnl|CDD|238675 cd01379, MYSc_type_III, Myosin motor domain, type III myosins
Myosin III has been shown to play a role in the vision process in insects and in hearing in mammals. Myosin III, an unconventional myosin, does not form dimers. 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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the filament (power stroke). Release of ADP completes the cycle. Length = 653
>gnl|CDD|238680 cd01384, MYSc_type_XI, Myosin motor domain, plant-specific type XI myosin, involved in organelle transport
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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the filament (power stroke). Release of ADP completes the cycle. Length = 674
>gnl|CDD|238681 cd01385, MYSc_type_IX, Myosin motor domain, type IX myosins
Score = 74.2 bits (182), Expect = 7e-17
Identities = 35/107 (32%), Positives = 59/107 (55%), Gaps = 4/107 (3%)
Query: 1 MKNLSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHF 60
M+ L + ++RCI+ N F+ LV Q++Y G+LETVRIRR+G+ R Y+ F
Sbjct: 575 METLGKAEPFFIRCIKSNAEKIENCFDDELVLRQLRYTGMLETVRIRRAGYSVRYTYQDF 634
Query: 61 VSRYKLLSPRTWPFPLCSPIEAVHVILHGLPIPHGEFAFGRSKLFVR 107
+Y++L P+ S E + +L + I + G++K+F+R
Sbjct: 635 TQQYRILLPKG----AQSCREDISTLLSKMKIDKRNYQIGKTKIFMR 677
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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the filament (power stroke). Release of ADP completes the cycle. Length = 692
Score = 44.0 bits (104), Expect = 2e-06
Identities = 26/111 (23%), Positives = 47/111 (42%), Gaps = 10/111 (9%)
Query: 1 MKNLSSKQLHYVRCIRPNQGHHPKLFETGLVQHQVKYLGLLETVRIRRSGFCYRLPYEHF 60
++ L S ++RCI+PN FE + Q++ G++ + + + GF R +
Sbjct: 601 LEKLRSTGSSFIRCIKPNLKMVSHQFEGAQILSQLQCSGMVSVLDLMQGGFPSRASFHEL 660
Query: 61 VSRYKLLSP----RTWPFPLCSPIEAVHVILHGLPIPHGEFAFGRSKLFVR 107
+ YK P R P C + L + ++ FG +K+F R
Sbjct: 661 YNMYKKYMPPKLVRLDPRLFCK------ALFKALGLNENDYKFGLTKVFFR 705
Myosin VI is a monomeric myosin, which moves towards the minus-end of actin filaments, in contrast to most other myosins. It has been implicated in endocytosis, secretion, and cell migration. 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 minus 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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the filament (power stroke). Release of ADP completes the cycle. Length = 717
Myosin I generates movement at the leading edge in cell motility, and class I myosins have been implicated in phagocytosis and vesicle transport. Myosin I, an unconventional myosin, does not form dimers. 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 picon
>cd01377 MYSc_type_II Myosin motor domain, type II myosins
Myosin II mediates cortical contraction in cell motility, and is the motor in smooth and skeletal muscle. 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 hydro
>cd01383 MYSc_type_VIII Myosin motor domain, plant-specific type VIII myosins, a subgroup which has been associated with endocytosis, cytokinesis, cell-to-cell coupling and gating at plasmodesmata
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 f
>cd01382 MYSc_type_VI Myosin motor domain, type VI myosins
Myosin VI is a monomeric myosin, which moves towards the minus-end of actin filaments, in contrast to most other myosins. It has been implicated in endocytosis, secretion, and cell migration. 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 minus 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
>cd01380 MYSc_type_V Myosin motor domain, type V myosins
Myosins V transport a variety of intracellular cargo processively along actin filaments, such as membraneous organelles and mRNA. 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 act
>cd01386 MYSc_type_XVIII Myosin motor domain, type XVIII myosins
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 head to pivot and associate with a new actin subunit. The release of Pi causes the
Large ATPases. ATPase; molecular motor. Muscle contraction consists of a cyclical interaction between myosin and actin. The core of the myosin structure is similar in fold to that of kinesin.
>cd01381 MYSc_type_VII Myosin motor domain, type VII myosins
Myosins in this group have been associated with functions in sensory systems such as vision and hearing. 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 hydr
>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
>cd01384 MYSc_type_XI Myosin motor domain, plant-specific type XI myosin, involved in organelle transport
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 head to pivot and associate with a new act
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 head to pivot and associate with a new actin subunit. The release of Pi causes the head to pivot and move the fila
>cd01387 MYSc_type_XV Myosin motor domain, type XV myosins
In vertebrates, myosin XV appears to be expressed in sensory tissue and play a role in hearing. 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 caus
>cd01379 MYSc_type_III Myosin motor domain, type III myosins
Myosin III has been shown to play a role in the vision process in insects and in hearing in mammals. Myosin III, an unconventional myosin, does not form dimers. 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
>PF00063 Myosin_head: Myosin head (motor domain); InterPro: IPR001609 Muscle contraction is caused by sliding between the thick and thin filaments of the myofibril
Myosin is a major component of thick filaments and exists as a hexamer of 2 heavy chains [], 2 alkali light chains, and 2 regulatory light chains. The heavy chain can be subdivided into the N-terminal globular head and the C-terminal coiled-coil rod-like tail, although some forms have a globular region in their C-terminal. There are many cell-specific isoforms of myosin heavy chains, coded for by a multi-gene family []. Myosin interacts with actin to convert chemical energy, in the form of ATP, to mechanical energy []. The 3-D structure of the head portion of myosin has been determined [] and a model for actin-myosin complex has been constructed []. The globular head is well conserved, some highly-conserved regions possibly relating to functional and structural domains []. The rod-like tail starts with an invariant proline residue, and contains many repeats of a 28 residue region, interrupted at 4 regularly-spaced points known as skip residues. Although the sequence of the tail is not well conserved, the chemical character is, hydrophobic, charged and skip residues occuring in a highly ordered and repeated fashion [].; GO: 0003774 motor activity, 0005524 ATP binding, 0016459 myosin complex; PDB: 1LKX_A 2V26_A 2BKI_A 3L9I_A 2BKH_A 2X51_A 2VB6_A 2VAS_A 1OE9_A 1W8J_A ....
>pdb|1QVI|A Chain A, Crystal Structure Of Scallop Myosin S1 In The Pre-Power Stroke State To 2.6 Angstrom Resolution: Flexibility And Function In The Head Length = 840
>pdb|2OS8|A Chain A, Rigor-Like Structures Of Muscle Myosins Reveal Key Mechanical Elements In The Transduction Pathways Of This Allosteric Motor Length = 840
>pdb|1MMA|A Chain A, X-Ray Structures Of The Mgadp, Mgatpgammas, And Mgamppnp Complexes Of The Dictyostelium Discoideum Myosin Motor Domain Length = 762
>pdb|2AKA|A Chain A, Structure Of The Nucleotide-Free Myosin Ii Motor Domain From Dictyostelium Discoideum Fused To The Gtpase Domain Of Dynamin 1 From Rattus Norvegicus Length = 776
>pdb|3MYH|X Chain X, Insights Into The Importance Of Hydrogen Bonding In The Gamma- Phosphate Binding Pocket Of Myosin: Structural And Functional Studies Of Ser236 Length = 762
>pdb|1MMG|A Chain A, X-Ray Structures Of The Mgadp, Mgatpgammas, And Mgamppnp Complexes Of The Dictyostelium Discoideum Myosin Motor Domain Length = 762
>pdb|1LVK|A Chain A, X-Ray Crystal Structure Of The Mg (Dot) 2'(3')-O-(N- Methylanthraniloyl) Nucleotide Bound To Dictyostelium Discoideum Myosin Motor Domain Length = 762
>pdb|1MMN|A Chain A, X-Ray Structures Of The Mgadp, Mgatpgammas, And Mgamppnp Complexes Of The Dictyostelium Discoideum Myosin Motor Domain Length = 762
>pdb|2Y0R|X Chain X, Structural Basis For The Allosteric Interference Of Myosin Function By Mutants G680a And G680v Of Dictyostelium Myosin-2 Length = 758
>pdb|2Y9E|X Chain X, Structural Basis For The Allosteric Interference Of Myosin Function By Mutants G680a And G680v Of Dictyostelium Myosin-2 Length = 758
>pdb|1I84|S Chain S, Cryo-Em Structure Of The Heavy Meromyosin Subfragment Of Chicken Gizzard Smooth Muscle Myosin With Regulatory Light Chain In The Dephosphorylated State. Only C Alphas Provided For Regulatory Light Chain. Only Backbone Atoms Provided For S2 Fragment. Length = 1184
>pdb|3J04|A Chain A, Em Structure Of The Heavy Meromyosin Subfragment Of Chick Smooth Muscle Myosin With Regulatory Light Chain In Phosphorylated State Length = 909
>1g8x_A Myosin II heavy chain fused to alpha-actinin 3; motor, lever ARM, protein engineering, structural protein; HET: ADP; 2.80A {Dictyostelium discoideum} SCOP: k.1.1.1
