Recombinant Chinese Hamster Glutamine Synthetase (GLUL) Protein (His)

Name: Recombinant Chinese Hamster Glutamine Synthetase (GLUL) Protein (His)
Brand: Beta LifeScience
SKU: BLC-01055P
Availability: InStock

Greater than 85% as determined by SDS-PAGE.

Our products are highly customizable to meet your specific needs. You can choose options such as endotoxin removal, liquid or lyophilized forms, preferred tags, and the desired functional sequence range for proteins. Submitting a written inquiry expedites the quoting process.

Product Overview

Description	Recombinant Chinese Hamster Glutamine Synthetase (GLUL) Protein (His) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 85% as determined by SDS-PAGE.
Uniprotkb	P04773
Target Symbol	GLUL
Synonyms	(GS)(Glutamate--ammonia ligase)(Palmitoyltransferase GLUL)
Species	Cricetulus griseus (Chinese hamster) (Cricetulus barabensis griseus)
Expression System	E.coli
Tag	N-6His
Target Protein Sequence	ATSASSHLNKGIKQMYMSLPQGEKVQAMYIWVDGTGEGLRCKTRTLDCEPKCVEELPEWNFDGSSTFQSESSNSDMYLSPVAMFRDPFRKEPNKLVFCEVFKYNQKPAETNLRHTCKRIMDMVSNQHPWFGMEQEYTLLGTDGHPFGWPSDGFPGPQGLYYCGVGADKAYRRDIMEAHYRACLYAGVKITGTYAEVKHAQWEFQIGPCEGIRMGDHLWVARFILHRVCKDFGVIATFDSKPIPGNWNGAGCHTNFSTKTMREENGLKHIKEAIEKLSKRHRYHIRAYDPKGGLDNARRLTGFHKTSNINDFSAGVADRSASIRIPRTVGQEKKGYFEARCPSANCDPFAVTEAIVRTCLLNETGDQPFQYKN
Expression Range	2-373aa
Protein Length	Full Length of Mature Protein
Mol. Weight	46.3 kDa
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	Glutamine synthetase that catalyzes the ATP-dependent conversion of glutamate and ammonia to glutamine. Its role depends on tissue localization: in the brain, it regulates the levels of toxic ammonia and converts neurotoxic glutamate to harmless glutamine, whereas in the liver, it is one of the enzymes responsible for the removal of ammonia. Essential for proliferation of fetal skin fibroblasts. Independently of its glutamine synthetase activity, required for endothelial cell migration during vascular development: acts by regulating membrane localization and activation of the GTPase RHOJ, possibly by promoting RHOJ palmitoylation. May act as a palmitoyltransferase for RHOJ: able to autopalmitoylate and then transfer the palmitoyl group to RHOJ. Plays a role in ribosomal 40S subunit biogenesis.
Subcellular Location	Cytoplasm, cytosol. Microsome. Mitochondrion. Cell membrane; Lipid-anchor.
Protein Families	Glutamine synthetase family
Database References	KEGG: cge:100689337

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.