Recombinant Rat Tyrosine-Protein Kinase Mer (MERTK) Protein (His)

Name: Recombinant Rat Tyrosine-Protein Kinase Mer (MERTK) Protein (His)
Brand: Beta LifeScience
SKU: BLC-11159P
Availability: InStock

Based on the SEQUEST from database of Mammalian Cell host and target protein, the LC-MS/MS Analysis result of this product could indicate that this peptide derived from Mammalian Cell-expressed Rattus norvegicus (Rat) Mertk.

Collections: Enzymes, Featured enzyme molecules, Kinase, Recombinant proteins

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Product Overview

Description	Recombinant Rat Tyrosine-Protein Kinase Mer (MERTK) Protein (His) is produced by our Mammalian cell expression system. This is a protein fragment.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	P57097
Target Symbol	MERTK
Synonyms	Mertk; MerTyrosine-protein kinase Mer; EC 2.7.10.1; Proto-oncogene c-Mer; Receptor tyrosine kinase MerTK
Species	Rattus norvegicus (Rat)
Expression System	Mammalian cell
Tag	N-6His
Target Protein Sequence	GGTAEKEEEIKPDQPFSGPLPGSLPADHRPFFAPHSSGDQLSPSQTGRSHPAHTATPQMTSAASNLLPPVAFKNTIGRIVLSEHKSVKFNCSINIPNVYQETAGISWWKDGKELLGAHHSITQFYPDEEGVSIIALFSITSVQRSDNGSYICKMKVNDREVVSDPIYVEVQGLPYFTKQPESVNVTRNTAFNLTCQAVGPPEPVNIFWVQNSSRVNENPERSPSVLTVAGLTETAVFSCEAHNDKGLTVSKGVQINIKVIPSPPTEVHILNSTAHSILVSWVPGFDGYSPLQNCSIQVKEADQLSNGSVMVFNTSASPHLYEVQQLQALANYSVTVSCRNEIGWSAVSPWILASTTEGAPAVAPLNITVFLNESSNNLEIRWTKPPIKRQDGELVGYRISHVWESAGTSKELSEEVSQNGSWAQVPVQMHNATCTVRIAVITKGGIGPFSEPVDVAIPEHSRVDYAPSSTPAPGNTESM
Expression Range	19-497aa
Protein Length	Partial
Mol. Weight	55.5
Research Area	Neuroscience
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	Receptor tyrosine kinase that transduces signals from the extracellular matrix into the cytoplasm by binding to several ligands including LGALS3, TUB, TULP1 or GAS6. Regulates many physiological processes including cell survival, migration, differentiation, and phagocytosis of apoptotic cells (efferocytosis). Ligand binding at the cell surface induces autophosphorylation of MERTK on its intracellular domain that provides docking sites for downstream signaling molecules. Following activation by ligand, interacts with GRB2 or PLCG2 and induces phosphorylation of MAPK1, MAPK2, FAK/PTK2 or RAC1. MERTK signaling plays a role in various processes such as macrophage clearance of apoptotic cells, platelet aggregation, cytoskeleton reorganization and engulfment. Functions in the retinal pigment epithelium (RPE) as a regulator of rod outer segments fragments phagocytosis. Plays also an important role in inhibition of Toll-like receptors (TLRs)-mediated innate immune response by activating STAT1, which selectively induces production of suppressors of cytokine signaling SOCS1 and SOCS3.
Subcellular Location	Membrane; Single-pass type I membrane protein.
Protein Families	Protein kinase superfamily, Tyr protein kinase family, AXL/UFO subfamily
Database References	KEGG: rno:65037 STRING: 10116.ENSRNOP00000023419 UniGene: Rn.48789
Associated Diseases	Defects in Mertk are the cause of retinal dystrophy (rdy) in the royal college of surgeons (RCS) rats.

Gene Functions References

Mertk protein expression in the Bone marrow mesenchymal stem cells was similar to that in the retinal pigment epithelial cells in the primary passage. PMID: 28210098
study concludes that activated microglia release Gal-3 and a neuraminidase that desialylates microglial and PC12 surfaces, enabling Gal-3 binding to PC12 (neuron-like) cells and their phagocytosis via Mer tyrosine kinase (MerTK). PMID: 28500071
This study demonstrated that in Mertk mutation mice regulated the Expression pattern of Ccr2 and Cx3cr1. PMID: 26458944
A novel role of MERTK signaling in membrane trafficking in the Retinal Pigment Eepithelium that is likely to subserve mechanisms of phagosome formation. PMID: 26283020
A deletion in the Mer tyrosine kinase (MerTK) receptor in Royal College of Surgeons rat that abolishes internalization of photoreceptor outer segments by retinal pigment epithelial cells. PMID: 20238011
Mertk triggers uptake of photoreceptor outer segments during phagocytosis by cultured retinal pigment epithelial cells. PMID: 11861639
Key involvement of mer in outer segment phsgocytosis has been clearly proven. PMID: 15180281

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.