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Binding of calcium ion to this domain increases the affinity of MYLK binding to myosin light chain. This myosin binding domain is located at the C-Terminus end of the kinase. On the other side of the kinase at the N-Terminus end, sits the actin-binding domain, which allows MYLK to form interactions with actin filaments, keeping it in place. [4] [5]
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.
Myosin light chain kinase 4 also known as MYLK4 is an enzyme which in humans is encoded by the MYLK2 gene. [2] MYLK4 is a member of the myosin light-chain kinase family of serine/threonine-specific protein kinases that phosphorylate the regulatory light chain of myosin II .
228785 Ensembl ENSG00000101306 ENSMUSG00000027470 UniProt Q9H1R3 Q8VCR8 RefSeq (mRNA) NM_033118 NM_001081044 RefSeq (protein) NP_149109 NP_001074513 Location (UCSC) Chr 20: 31.82 – 31.83 Mb Chr 2: 152.75 – 152.76 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Myosin light chain kinase 2 also known as MYLK2 is an enzyme which in humans is encoded by the MYLK2 gene. Function This ...
Structurally, myosin light chains belong to the EF-hand family, a large family of Ca 2+ - binding proteins. MLCs contain two Ca 2+ - binding EF-hand motifs. MLCs isoforms modulate the Ca 2+ of force transduction and cross-bridge kinetics. Myosin light chains (MLCs) can be broadly classified into two groups: Essential or alkali MLC (MLC1 or ELC),
Myosin regulatory light chain 2, ventricular/cardiac muscle isoform (MLC-2) also known as the regulatory light chain of myosin (RLC) is a protein that in humans is encoded by the MYL2 gene. [ 5 ] [ 6 ] This cardiac ventricular RLC isoform is distinct from that expressed in skeletal muscle ( MYLPF ), smooth muscle ( MYL12B ) and cardiac atrial ...
In enzymology, a myosin-heavy-chain kinase (EC 2.7.11.7) is an enzyme that catalyzes the chemical reaction. ATP + [myosin heavy-chain] ADP + [myosin heavy-chain] phosphate Thus, the two substrates of this enzyme are ATP and myosin heavy-chain, whereas its two products are ADP and myosin heavy-chain phosphate.
Myosin II is an elongated protein that is formed from two heavy chains with motor heads and two light chains. Each myosin head contains actin and ATP binding site. The myosin heads bind and hydrolyze ATP, which provides the energy to walk toward the plus end of an actin filament. Myosin II are also vital in the process of cell division. For ...