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General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.
Gene namei
Official gene symbol, which is typically a short form of the gene name, according to HGNC.
Assigned HPA protein class(es) for the encoded protein(s).
Disease related genes Enzymes Human disease related genes Metabolic proteins Plasma proteins Potential drug targets
Predicted locationi
All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.
Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.
Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).
The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.
Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.
Chromosome
3
Cytoband
q21.1
Chromosome location (bp)
123610049 - 123884332
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
Calcium/calmodulin-dependent myosin light chain kinase implicated in smooth muscle contraction via phosphorylation of myosin light chains (MLC). Also regulates actin-myosin interaction through a non-kinase activity. Phosphorylates PTK2B/PYK2 and myosin light-chains. Involved in the inflammatory response (e.g. apoptosis, vascular permeability, leukocyte diapedesis), cell motility and morphology, airway hyperreactivity and other activities relevant to asthma. Required for tonic airway smooth muscle contraction that is necessary for physiological and asthmatic airway resistance. Necessary for gastrointestinal motility. Implicated in the regulation of endothelial as well as vascular permeability, probably via the regulation of cytoskeletal rearrangements. In the nervous system it has been shown to control the growth initiation of astrocytic processes in culture and to participate in transmitter release at synapses formed between cultured sympathetic ganglion cells. Critical participant in signaling sequences that result in fibroblast apoptosis. Plays a role in the regulation of epithelial cell survival. Required for epithelial wound healing, especially during actomyosin ring contraction during purse-string wound closure. Mediates RhoA-dependent membrane blebbing. Triggers TRPC5 channel activity in a calcium-dependent signaling, by inducing its subcellular localization at the plasma membrane. Promotes cell migration (including tumor cells) and tumor metastasis. PTK2B/PYK2 activation by phosphorylation mediates ITGB2 activation and is thus essential to trigger neutrophil transmigration during acute lung injury (ALI). May regulate optic nerve head astrocyte migration. Probably involved in mitotic cytoskeletal regulation. Regulates tight junction probably by modulating ZO-1 exchange in the perijunctional actomyosin ring. Mediates burn-induced microvascular barrier injury; triggers endothelial contraction in the development of microvascular hyperpermeability by phosphorylating MLC. Essential for intestinal barrier dysfunction. Mediates Giardia spp.-mediated reduced epithelial barrier function during giardiasis intestinal infection via reorganization of cytoskeletal F-actin and tight junctional ZO-1. Necessary for hypotonicity-induced Ca(2+) entry and subsequent activation of volume-sensitive organic osmolyte/anion channels (VSOAC) in cervical cancer cells. Responsible for high proliferative ability of breast cancer cells through anti-apoptosis....show less
Molecular function (UniProt)i
Keywords assigned by UniProt to proteins due to their particular molecular function.
This gene, a muscle member of the immunoglobulin gene superfamily, encodes myosin light chain kinase which is a calcium/calmodulin dependent enzyme. This kinase phosphorylates myosin regulatory light chains to facilitate myosin interaction with actin filaments to produce contractile activity. This gene encodes both smooth muscle and nonmuscle isoforms. In addition, using a separate promoter in an intron in the 3' region, it encodes telokin, a small protein identical in sequence to the C-terminus of myosin light chain kinase, that is independently expressed in smooth muscle and functions to stabilize unphosphorylated myosin filaments. A pseudogene is located on the p arm of chromosome 3. Four transcript variants that produce four isoforms of the calcium/calmodulin dependent enzyme have been identified as well as two transcripts that produce two isoforms of telokin. Additional variants have been identified but lack full length transcripts. [provided by RefSeq, Jul 2008]...show less
PROTEIN INFORMATIONi
The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.
The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.
The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.
The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Enzymes ENZYME proteins Transferases Kinases CAMK Ser/Thr protein kinases Metabolic proteins SPOCTOPUS predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Plasma proteins Disease related genes Potential drug targets Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Enzymes ENZYME proteins Transferases Kinases CAMK Ser/Thr protein kinases Metabolic proteins Predicted membrane proteins Prediction method-based Membrane proteins predicted by MDM MEMSAT-SVM predicted membrane proteins SCAMPI predicted membrane proteins SPOCTOPUS predicted membrane proteins THUMBUP predicted membrane proteins # TM segments-based 1TM proteins predicted by MDM Plasma proteins Disease related genes Potential drug targets Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Enzymes ENZYME proteins Transferases Kinases CAMK Ser/Thr protein kinases Metabolic proteins SPOCTOPUS predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Plasma proteins Disease related genes Potential drug targets Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Enzymes ENZYME proteins Transferases Kinases CAMK Ser/Thr protein kinases Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Plasma proteins Disease related genes Potential drug targets Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Protein evidence (Ezkurdia et al 2014)
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Protein evidence (Ezkurdia et al 2014)
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Protein evidence (Ezkurdia et al 2014)
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Protein evidence (Ezkurdia et al 2014)
Enzymes ENZYME proteins Transferases Kinases CAMK Ser/Thr protein kinases Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Plasma proteins Disease related genes Potential drug targets Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Ezkurdia et al 2014)
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Protein evidence (Ezkurdia et al 2014)
Enzymes ENZYME proteins Transferases Kinases CAMK Ser/Thr protein kinases Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Plasma proteins Disease related genes Potential drug targets Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Enzymes ENZYME proteins Transferases Kinases CAMK Ser/Thr protein kinases Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Plasma proteins Disease related genes Potential drug targets Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Ezkurdia et al 2014)
Metabolic proteins SCAMPI predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Protein evidence (Ezkurdia et al 2014)
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Protein evidence (Ezkurdia et al 2014)
Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Protein evidence (Ezkurdia et al 2014)
Enzymes ENZYME proteins Transferases Kinases CAMK Ser/Thr protein kinases Metabolic proteins Predicted membrane proteins Prediction method-based Membrane proteins predicted by MDM MEMSAT-SVM predicted membrane proteins SCAMPI predicted membrane proteins SPOCTOPUS predicted membrane proteins THUMBUP predicted membrane proteins # TM segments-based 1TM proteins predicted by MDM Plasma proteins Disease related genes Potential drug targets Human disease related genes Cardiovascular diseases Vascular diseases Congenital malformations Congenital malformations of the digestive system Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
The Human Protein Atlas project is funded
