Recombinant Rat Neurosecretory Protein Vgf (VGF) Protein (His)

Name: Recombinant Rat Neurosecretory Protein Vgf (VGF) Protein (His)
Brand: Beta LifeScience
SKU: BLC-06698P
Availability: InStock

Greater than 85% as determined by SDS-PAGE.

Collections: All products, High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Rat Neurosecretory Protein Vgf (VGF) 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	P20156
Target Symbol	VGF
Synonyms	(VGF8a protein)(24-63)(180-194)(375-407)(NERP-1)(NERP-2)
Species	Rattus norvegicus (Rat)
Expression System	E.coli
Tag	N-10His
Target Protein Sequence	APPGRSDVYPPPLGSEHNGQVAEDAVSRPKDDSVPEVRAARNSEPQDQGELFQGVDPRALAAVLLQALDRPASPPAVPAGSQQGTPEEAAEALLTESVRSQTHSLPASEIQASAVAPPRPQTQDNDPEADDRSEELEALASLLQELRDFSPSNAKRQQETAAAETETRTHTLTRVNLESPGPERVWRASWGEFQARVPERAPLPPSVPSQFQARMSENVPLPETHQFGEGVSSPKTHLGETLTPLSKAYQSLSAPFPKVRRLEGSFLGGSEAGERLLQQGLAQVEAGRRQAEATRQAAAQEERLADLASDLLLQYLLQGGARQRDLGGRGLQETQQERENEREEEAEQERRGGGEDEVGEEDEEAAEAEAEAEEAERARQNALLFAEEEDGEAGAEDKRSQEEAPGHRRKDAEGTEEGGEEDDDDEEMDPQTIDSLIELSTKLHLPADDVVSIIEEVEEKRKRKKNAPPEPVPPPRAAPAPTHVRSPQPPPPAPARDELPDWNEVLPPWDREEDEVFPPGPYHPFPNYIRPRTLQPPASSRRRHFHHALPPARHHPDLEAQARRAQEEADAEERRLQEQEELENYIEHVLLHRP
Expression Range	24-617aa
Protein Length	Full Length of Mature Protein
Mol. Weight	69.3 kDa
Research Area	Others
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	Secreted polyprotein that is packaged and proteolytically processed by prohormone convertases PCSK1 and PCSK2 in a cell-type-specific manner. VGF and peptides derived from its processing play many roles in neurogenesis and neuroplasticity associated with learning, memory, depression and chronic pain.; Plays a role in the control of body fluid homeostasis by regulating vasopressin release. Suppresses presynaptic glutamatergic neurons connected to vasopressin neurons.; Plays a role in the control of body fluid homeostasis by regulating vasopressin release. Activates GABAergic interneurons which are inhibitory neurons of the nervous system and thereby suppresses presynaptic glutamatergic neurons. Stimulates also feeding behavior in an orexin-dependent manner in the hypothalamus. Functions as a positive regulator for the activation of orexin neurons resulting in elevated gastric acid secretion and gastric emptying.; Secreted multifunctional neuropeptide that binds to different cell receptors and thereby plays multiple physiological roles including modulation of energy expenditure, pain, response to stress, gastric regulation, glucose homeostasis as well as lipolysis. Activates the G-protein-coupled receptor C3AR1 via a folding-upon-binding mechanism leading to enhanced lipolysis in adipocytes. Interacts with C1QBP receptor in macrophages and microglia causing increased levels of intracellular calcium and hypersensitivity.; Plays a role in the regulation of memory formation and depression-related behaviors potentially by influencing synaptic plasticity and neurogenesis. Induces acute and transient activation of the NTRK2/TRKB receptor and subsequent CREB phosphorylation. Induces also insulin secretion in insulinoma cells by increasing intracellular calcium mobilization.
Subcellular Location	[Neurosecretory protein VGF]: Secreted. Cytoplasmic vesicle, secretory vesicle.
Database References	KEGG: rno:29461 STRING: 10116.ENSRNOP00000050024 UniGene: PMID: 25569790 various VGF peptides may regulate the hypothalamus-pituitary complex via specific neuroendocrine mechanisms while TLQP peptides may act at further, multiple levels via endocrine mechanisms involving the ovary. PMID: 25280008 VGF is involved in the control of metabolism and body weight homeostasis; active peptide fragments are generated from VGF, including TLQP-21, which controls reproductive function in female rats. PMID: 23485923 These results indicate that gC1qR is the receptor for TLQP-21 and plays an important role in chronic pain through activation of macrophages PMID: 24106277 VGF expression under continuous stress is negatively regulated by dopaminergic neurons projecting from the hypothalamus. PMID: 23541636 Specific VGF peptides appear to be widely represented in different gastric endocrine and other mucosal cell populations. PMID: 20876237 VGF protein is primarily cleaved at 10 sites through the processing pathway common to the brain and gastrointestinal tract. PMID: 20524965 Analysis of the contractile activity of VGF-derived peptides, biologically active in other systems, shows that only TLQP-21, corresponding to the 556-576 amino acid fragment of VGF precursor protein, can influence gastrointestinal contraction in vitro. PMID: 19466987 VGF neuropeptides may regulate synaptic function in hippocampal neurons; C-terminal VGF peptides acutely increased synaptic charge in a dose-dependent manner PMID: 14645472 molecular mechanisms of its sorting to the regulated and polarized pathways of secretion PMID: 15051509 The identification in the Central nervous system of a previously uncharacterized VGF-derived peptide and its chronic i.c.v. infusion effected an increase in energy expenditure and limited the early phase of diet-induced obesity, is reported. PMID: 16983076 the exercise-regulated gene VGF has an antidepressant effect PMID: 18059283 Prolonged upregulation of VGF mRNA and protein was observed in injured dorsal root ganglion neurons, central terminals and their target dorsal horn neurons PMID: 19077191

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.