P20689
SS
Gene name |
Mylk2 |
Protein name |
Myosin light chain kinase 2, skeletal/cardiac muscle |
Names |
MLCK2 , EC 2.7.11.18 |
Species |
Rattus norvegicus (Rat) |
KEGG Pathway |
rno:117558 |
EC number |
2.7.11.18: Protein-serine/threonine kinases |
Protein Class |
|
Descriptions
Myosin light chain kinases (MLCK) are members of the family of Ca2+-calmodulin-dependent protein kinases. This enzyme contains an autoinhibitory pseudosubstrate sequence that blocks the substrate-binding site of the kinase. The autoinhibitory sequence makes an extensive network of contacts on the surface of the larger C-domain of the catalytic core extending towards the catalytic cleft with the CaM-binding sequence to block the regulatory light chain of sarcomeric myosin, but not ATP binding in the catalytic core N-domain.
Autoinhibitory domains (AIDs)
Target domain |
299-554 (Protein kinase domain) |
Relief mechanism |
Partner binding |
Assay |
|
Accessory elements
439-461 (Activation loop from InterPro)
Target domain |
294-554 (Protein kinase domain) |
Relief mechanism |
|
Assay |
|
Autoinhibited structure
Activated structure
1 structures for P20689
| Entry ID | Method | Resolution | Chain | Position | Source |
|---|---|---|---|---|---|
| AF-P20689-F1 | Predicted | AlphaFoldDB |
No variants for P20689
| Variant ID(s) | Position | Change | Description | Diseaes Association | Provenance |
|---|---|---|---|---|---|
| No variants for P20689 | |||||
No associated diseases with P20689
4 regional properties for P20689
| Type | Name | Position | InterPro Accession |
|---|---|---|---|
| domain | Protein kinase domain | 299 - 554 | IPR000719 |
| active_site | Serine/threonine-protein kinase, active site | 416 - 428 | IPR008271 |
| binding_site | Protein kinase, ATP binding site | 305 - 332 | IPR017441 |
| domain | Myosin light chain kinase 2, catalytic domain | 294 - 554 | IPR042717 |
Functions
| Description | ||
|---|---|---|
| EC Number | 2.7.11.18 | Protein-serine/threonine kinases |
| Subcellular Localization |
|
|
| PANTHER Family | ||
| PANTHER Subfamily | ||
| PANTHER Protein Class | ||
| PANTHER Pathway Category | No pathway information available | |
8 GO annotations of cellular component
| Name | Definition |
|---|---|
| cytoplasm | The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. |
| dendrite | A neuron projection that has a short, tapering, morphology. Dendrites receive and integrate signals from other neurons or from sensory stimuli, and conduct nerve impulses towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body. |
| dendritic spine | A small, membranous protrusion from a dendrite that forms a postsynaptic compartment, typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable:they can be thin, stubby, mushroom, or branched, with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity. |
| neuronal cell body | The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites. |
| nucleus | A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. |
| synapse | The junction between an axon of one neuron and a dendrite of another neuron, a muscle fiber or a glial cell. As the axon approaches the synapse it enlarges into a specialized structure, the presynaptic terminal bouton, which contains mitochondria and synaptic vesicles. At the tip of the terminal bouton is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic terminal bouton secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane. |
| synaptic vesicle | A secretory organelle, typically 50 nm in diameter, of presynaptic nerve terminals; accumulates in high concentrations of neurotransmitters and secretes these into the synaptic cleft by fusion with the 'active zone' of the presynaptic plasma membrane. |
| terminal bouton | Terminal inflated portion of the axon, containing the specialized apparatus necessary to release neurotransmitters. The axon terminus is considered to be the whole region of thickening and the terminal bouton is a specialized region of it. |
4 GO annotations of molecular function
| Name | Definition |
|---|---|
| ATP binding | Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator. |
| calmodulin binding | Binding to calmodulin, a calcium-binding protein with many roles, both in the calcium-bound and calcium-free states. |
| myosin light chain binding | Binding to a light chain of a myosin complex. |
| myosin light chain kinase activity | Catalysis of the reaction |
14 GO annotations of biological process
| Name | Definition |
|---|---|
| cardiac muscle tissue morphogenesis | The process in which the anatomical structures of cardiac muscle tissue are generated and organized. |
| muscle contraction | A process in which force is generated within muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. |
| neuromuscular synaptic transmission | The process of synaptic transmission from a neuron to a muscle, across a synapse. |
| phosphorylation | The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide. |
| positive regulation of fast-twitch skeletal muscle fiber contraction | Any process that activates or increases the frequency, rate or extent of fast-twitch skeletal muscle contraction. |
| positive regulation of gene expression | Any process that increases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product (protein or RNA). |
| regulation of MAPK cascade | Any process that modulates the frequency, rate or extent of signal transduction mediated by the MAP kinase (MAPK) cascade. |
| regulation of muscle filament sliding | Any process that modulates the frequency, rate or extent of muscle filament sliding. |
| regulation of neuronal synaptic plasticity | A process that modulates neuronal synaptic plasticity, the ability of neuronal synapses to change as circumstances require. They may alter function, such as increasing or decreasing their sensitivity, or they may increase or decrease in actual numbers. |
| skeletal muscle cell differentiation | The process in which a relatively unspecialized cell acquires specialized features of a skeletal muscle cell, a somatic cell located in skeletal muscle. |
| skeletal muscle satellite cell differentiation | The process in which a relatively unspecialized cell acquires specialized features of a satellite cell. |
| striated muscle contraction | A process in which force is generated within striated muscle tissue, resulting in the shortening of the muscle. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis. Striated muscle is a type of muscle in which the repeating units (sarcomeres) of the contractile myofibrils are arranged in registry throughout the cell, resulting in transverse or oblique striations observable at the level of the light microscope. |
| synaptic vesicle transport | The directed movement of synaptic vesicles. |
| water transport | The directed movement of water (H2O) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. |
105 homologous proteins in AiPD
| UniProt AC | Gene Name | Protein Name | Species | Evidence Code |
|---|---|---|---|---|
| Q0V7M1 | PSKH1 | Serine/threonine-protein kinase H1 | Bos taurus (Bovine) | SS |
| Q0VD22 | STK33 | Serine/threonine-protein kinase 33 | Bos taurus (Bovine) | PR |
| A4IFM7 | MYLK2 | Myosin light chain kinase 2, skeletal/cardiac muscle | Bos taurus (Bovine) | SS |
| Q96NX5 | CAMK1G | Calcium/calmodulin-dependent protein kinase type 1G | Homo sapiens (Human) | SS |
| O15075 | DCLK1 | Serine/threonine-protein kinase DCLK1 | Homo sapiens (Human) | EV |
| Q14012 | CAMK1 | Calcium/calmodulin-dependent protein kinase type 1 | Homo sapiens (Human) | EV |
| Q9UIK4 | DAPK2 | Death-associated protein kinase 2 | Homo sapiens (Human) | EV |
| O94768 | STK17B | Serine/threonine-protein kinase 17B | Homo sapiens (Human) | PR |
| Q86YV6 | MYLK4 | Myosin light chain kinase family member 4 | Homo sapiens (Human) | SS |
| Q16566 | CAMK4 | Calcium/calmodulin-dependent protein kinase type IV | Homo sapiens (Human) | SS |
| P11801 | PSKH1 | Serine/threonine-protein kinase H1 | Homo sapiens (Human) | SS |
| Q8N568 | DCLK2 | Serine/threonine-protein kinase DCLK2 | Homo sapiens (Human) | PR |
| Q9UEE5 | STK17A | Serine/threonine-protein kinase 17A | Homo sapiens (Human) | SS |
| O75962 | TRIO | Triple functional domain protein | Homo sapiens (Human) | EV |
| Q32MK0 | MYLK3 | Myosin light chain kinase 3 | Homo sapiens (Human) | SS |
| Q8WWF8 | CAPSL | Calcyphosin-like protein | Homo sapiens (Human) | PR |
| P53355 | DAPK1 | Death-associated protein kinase 1 | Homo sapiens (Human) | EV |
| Q6P2M8 | PNCK | Calcium/calmodulin-dependent protein kinase type 1B | Homo sapiens (Human) | SS |
| Q9BYT3 | STK33 | Serine/threonine-protein kinase 33 | Homo sapiens (Human) | PR |
| Q8NCB2 | CAMKV | CaM kinase-like vesicle-associated protein | Homo sapiens (Human) | SS |
| O43293 | DAPK3 | Death-associated protein kinase 3 | Homo sapiens (Human) | PR |
| Q8IU85 | CAMK1D | Calcium/calmodulin-dependent protein kinase type 1D | Homo sapiens (Human) | SS |
| Q9H1R3 | MYLK2 | Myosin light chain kinase 2, skeletal/cardiac muscle | Homo sapiens (Human) | EV |
| Q9QYK9 | Pnck | Calcium/calmodulin-dependent protein kinase type 1B | Mus musculus (Mouse) | PR |
| Q91VB2 | Camk1g | Calcium/calmodulin-dependent protein kinase type 1G | Mus musculus (Mouse) | SS |
| Q8BG48 | Stk17b | Serine/threonine-protein kinase 17B | Mus musculus (Mouse) | PR |
| Q6PGN3 | Dclk2 | Serine/threonine-protein kinase DCLK2 | Mus musculus (Mouse) | PR |
| Q91YS8 | Camk1 | Calcium/calmodulin-dependent protein kinase type 1 | Mus musculus (Mouse) | SS |
| Q3UIZ8 | Mylk3 | Myosin light chain kinase 3 | Mus musculus (Mouse) | SS |
| Q8VDF3 | Dapk2 | Death-associated protein kinase 2 | Mus musculus (Mouse) | EV |
| Q6P8Y1 | Capsl | Calcyphosin-like protein | Mus musculus (Mouse) | PR |
| Q8BW96 | Camk1d | Calcium/calmodulin-dependent protein kinase type 1D | Mus musculus (Mouse) | SS |
| Q3UHL1 | Camkv | CaM kinase-like vesicle-associated protein | Mus musculus (Mouse) | SS |
| P08414 | Camk4 | Calcium/calmodulin-dependent protein kinase type IV | Mus musculus (Mouse) | SS |
| Q9JLM8 | Dclk1 | Serine/threonine-protein kinase DCLK1 | Mus musculus (Mouse) | SS |
| Q91YA2 | Pskh1 | Serine/threonine-protein kinase H1 | Mus musculus (Mouse) | SS |
| Q80YE7 | Dapk1 | Death-associated protein kinase 1 | Mus musculus (Mouse) | SS |
| Q62407 | Speg | Striated muscle-specific serine/threonine-protein kinase | Mus musculus (Mouse) | SS |
| Q0KL02 | Trio | Triple functional domain protein | Mus musculus (Mouse) | SS |
| Q924X7 | Stk33 | Serine/threonine-protein kinase 33 | Mus musculus (Mouse) | PR |
| O54784 | Dapk3 | Death-associated protein kinase 3 | Mus musculus (Mouse) | PR |
| Q8VCR8 | Mylk2 | Myosin light chain kinase 2, skeletal/cardiac muscle | Mus musculus (Mouse) | SS |
| F1M0Z1 | Trio | Triple functional domain protein | Rattus norvegicus (Rat) | SS |
| Q91XS8 | Stk17b | Serine/threonine-protein kinase 17B | Rattus norvegicus (Rat) | PR |
| O08875 | Dclk1 | Serine/threonine-protein kinase DCLK1 | Rattus norvegicus (Rat) | PR |
| Q63638 | Speg | Striated muscle-specific serine/threonine-protein kinase | Rattus norvegicus (Rat) | SS |
| O88764 | Dapk3 | Death-associated protein kinase 3 | Rattus norvegicus (Rat) | PR |
| P13234 | Camk4 | Calcium/calmodulin-dependent protein kinase type IV | Rattus norvegicus (Rat) | SS |
| P97924 | Kalrn | Kalirin | Rattus norvegicus (Rat) | SS |
| Q5MPA9 | Dclk2 | Serine/threonine-protein kinase DCLK2 | Rattus norvegicus (Rat) | PR |
| P13286 | Phkg1 | Phosphorylase b kinase gamma catalytic chain, skeletal muscle/heart isoform | Rattus norvegicus (Rat) | SS |
| P31325 | Phkg2 | Phosphorylase b kinase gamma catalytic chain, liver/testis isoform | Rattus norvegicus (Rat) | PR |
| P08413 | Camk2b | Calcium/calmodulin-dependent protein kinase type II subunit beta | Rattus norvegicus (Rat) | SS |
| P11275 | Camk2a | Calcium/calmodulin-dependent protein kinase type II subunit alpha | Rattus norvegicus (Rat) | PR |
| P11730 | Camk2g | Calcium/calmodulin-dependent protein kinase type II subunit gamma | Rattus norvegicus (Rat) | SS |
| P15791 | Camk2d | Calcium/calmodulin-dependent protein kinase type II subunit delta | Rattus norvegicus (Rat) | SS |
| E9PT87 | Mylk3 | Myosin light chain kinase 3 | Rattus norvegicus (Rat) | SS |
| O70150 | Pnck | Calcium/calmodulin-dependent protein kinase type 1B | Rattus norvegicus (Rat) | PR |
| Q7TNJ7 | Camk1g | Calcium/calmodulin-dependent protein kinase type 1G | Rattus norvegicus (Rat) | SS |
| Q63092 | Camkv | CaM kinase-like vesicle-associated protein | Rattus norvegicus (Rat) | SS |
| Q63450 | Camk1 | Calcium/calmodulin-dependent protein kinase type 1 | Rattus norvegicus (Rat) | EV |
| Q5VQQ5 | CPK2 | Calcium-dependent protein kinase 2 | Oryza sativa subsp. japonica (Rice) | SS |
| Q8LPZ7 | CPK3 | Calcium-dependent protein kinase 3 | Oryza sativa subsp. japonica (Rice) | SS |
| Q6K968 | CPK6 | Calcium-dependent protein kinase 6 | Oryza sativa subsp. japonica (Rice) | SS |
| P53684 | CPK7 | Calcium-dependent protein kinase 7 | Oryza sativa subsp japonica (Rice) | PR |
| Q75GE8 | CPK8 | Calcium-dependent protein kinase 8 | Oryza sativa subsp. japonica (Rice) | SS |
| Q6I5I8 | CPK16 | Calcium-dependent protein kinase 16 | Oryza sativa subsp. japonica (Rice) | SS |
| Q6AVM3 | CCAMK | Calcium and calcium/calmodulin-dependent serine/threonine-protein kinase | Oryza sativa subsp japonica (Rice) | PR |
| Q84SL0 | CPK20 | Calcium-dependent protein kinase 20 | Oryza sativa subsp. japonica (Rice) | SS |
| P53682 | CPK23 | Calcium-dependent protein kinase 23 | Oryza sativa subsp japonica (Rice) | PR |
| Q9TXJ0 | cmk-1 | Calcium/calmodulin-dependent protein kinase type 1 | Caenorhabditis elegans | PR |
| O44997 | dapk-1 | Death-associated protein kinase dapk-1 | Caenorhabditis elegans | SS |
| Q95QC4 | zyg-8 | Serine/threonine-protein kinase zyg-8 | Caenorhabditis elegans | PR |
| P28583 | Calcium-dependent protein kinase SK5 | Glycine max (Soybean) (Glycine hispida) | PR | |
| Q9M9V8 | CPK10 | Calcium-dependent protein kinase 10 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q39016 | CPK11 | Calcium-dependent protein kinase 11 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| Q9FX86 | CRK8 | CDPK-related kinase 8 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q9SSF8 | CPK30 | Calcium-dependent protein kinase 30 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q38872 | CPK6 | Calcium-dependent protein kinase 6 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q7XJR9 | CPK16 | Calcium-dependent protein kinase 16 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q9SIQ7 | CPK24 | Calcium-dependent protein kinase 24 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q9SJ61 | CPK25 | Calcium-dependent protein kinase 25 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q9ZV15 | CPK20 | Calcium-dependent protein kinase 20 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| P93759 | GK-1 | Calcium-dependent protein kinase 14 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q8S8S2 | LPEAT2 | Lysophospholipid acyltransferase LPEAT2 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q38870 | CPK2 | Calcium-dependent protein kinase 2 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q9LJL9 | CRK2 | CDPK-related kinase 2 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q9SG12 | CRK6 | CDPK-related kinase 6 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q9SCS2 | CRK5 | CDPK-related kinase 5 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q8W4I7 | CPK13 | Calcium-dependent protein kinase 13 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q6NLQ6 | CPK32 | Calcium-dependent protein kinase 32 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q9ZSA4 | CPK27 | Calcium-dependent protein kinase 27 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q38869 | CPK4 | Calcium-dependent protein kinase 4 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| Q42479 | CPK3 | Calcium-dependent protein kinase 3 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q1PE17 | CPK18 | Calcium-dependent protein kinase 18 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| Q06850 | CPK1 | Calcium-dependent protein kinase 1 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q9FMP5 | CPK17 | Calcium-dependent protein kinase 17 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q38873 | CPK7 | Calcium-dependent protein kinase 7 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q3E9C0 | CPK34 | Calcium-dependent protein kinase 34 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q42438 | CPK8 | Calcium-dependent protein kinase 8 | Arabidopsis thaliana (Mouse-ear cress) | PR |
| Q42396 | CPK12 | Calcium-dependent protein kinase 12 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| Q9FKW4 | CPK28 | Calcium-dependent protein kinase 28 | Arabidopsis thaliana (Mouse-ear cress) | SS |
| Q1LUA6 | trio | Triple functional domain protein | Danio rerio (Zebrafish) (Brachydanio rerio) | SS |
| A8C984 | mylk3 | Myosin light chain kinase 3 | Danio rerio (Zebrafish) (Brachydanio rerio) | SS |
| Q7SY49 | camkv | CaM kinase-like vesicle-associated protein | Danio rerio (Zebrafish) (Brachydanio rerio) | SS |
| 10 | 20 | 30 | 40 | 50 | 60 |
| MATENGAVEL | GTQSLSTDHP | PTDAAGDGSP | ASEKEPSLPD | TEKDLGPTNT | KKDPGAPDPK |
| 70 | 80 | 90 | 100 | 110 | 120 |
| KNPDPPSLKK | TPEAPGPEKK | GDSAPASASN | QGPSGEGDGG | GGPAEGGTGP | PAVLPQPTAT |
| 130 | 140 | 150 | 160 | 170 | 180 |
| ADASIQKLDA | TQAPSGNQES | GEAKAGKKAA | ECREAGRRGS | PAFLHSPSCP | AIISCSEKTL |
| 190 | 200 | 210 | 220 | 230 | 240 |
| AMKPLSETTE | LIFAGVSETP | DPQDPGPAKD | EGGTNTLADG | KEEAEAGQAE | QAKVQGDTSQ |
| 250 | 260 | 270 | 280 | 290 | 300 |
| RIGFQAVPSE | RAEVGQALCL | TAKEEDCFQI | LDDCPPPPAP | FPHRIVELRT | GNVSSEFSMN |
| 310 | 320 | 330 | 340 | 350 | 360 |
| SKEALGGGKF | GAVCTCTERS | TGLKLAAKVI | KKQTPKDKEM | VLLEIEVMNQ | LNHRNLIQLY |
| 370 | 380 | 390 | 400 | 410 | 420 |
| SAIETSHEII | LFMEYIEGGE | LFERIVDEDY | QLTEVDTMVF | VRQICDGILF | MHKMRVLHLD |
| 430 | 440 | 450 | 460 | 470 | 480 |
| LKPENILCVN | TTGHLVKIID | FGLARRYNPN | EKLKVNFGTP | EFLSPEVVNY | DQISDKTDMW |
| 490 | 500 | 510 | 520 | 530 | 540 |
| SLGVITYMLL | SGLSPFLGDD | DTETLNNVLS | ANWYFDEETF | EAVSDEAKDF | VSNLITKDQS |
| 550 | 560 | 570 | 580 | 590 | 600 |
| ARMSAEQCLA | HPWLNNLAEK | AKRCNRRLKS | QILLKKYLMK | RRWKKNFIAV | SAANRFKKIS |
| SSGALMALGV |