Recombinant Human Glial Cell Line-Derived Neurotrophic Factor Protein (GDNF), Active

Name: Recombinant Human Glial Cell Line-Derived Neurotrophic Factor Protein (GDNF), Active
Brand: Beta LifeScience
SKU: BLC-06016P
Availability: InStock

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Product Overview

Description	Recombinant Human Glial Cell Line-Derived Neurotrophic Factor Protein (GDNF), Active is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 97% as determined by SDS-PAGE and HPLC.
Endotoxin	Less than 1.0 EU/μg as determined by LAL method.
Activity	Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using rat C6 cells is less than 0.1 ng/ml, corresponding to a specific activity of >5.0x10 7 IU/mg.
Uniprotkb	P39905
Target Symbol	GDNF
Synonyms	Astrocyte derived trophic factor ; Astrocyte derived trophic factor 1; Astrocyte-derived trophic factor; ATF 1 ; ATF 2; Atf; ATF1; ATF2; gdnf; GDNF_HUMAN; Glial cell derived neurotrophic factor; Glial Cell Line Derived Neurotrophic Factor; Glial cell line-derived neurotrophic factor; Glial derived neurotrophic factor; HFB1 GDNF; hGDNF; HSCR3
Species	Homo sapiens (Human)
Expression System	E.Coli
Tag	Tag-Free
Complete Sequence	SPDKQMAVLP RRERNRQAAA ANPENSRGKG RRGQRGKNRG CVLTAIHLNV TDLGLGYETK EELIFRYCSG SCDAAETTYD KILKNLSRNR RLVSDKVGQA CCRPIAFDDD LSFLDDNLVY HILRKHSAKR CGCI
Expression Range	78-211aa
Protein Length	Full Length of Mature Protein
Mol. Weight	15.1 kDa
Research Area	Neuroscience
Form	Lyophilized powder
Buffer	Lyophilized from a 0.2 m filtered 1 × PBS, pH 7.4, with 0.05 Tween-20
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	Neurotrophic factor that enhances survival and morphological differentiation of dopaminergic neurons and increases their high-affinity dopamine uptake.
Subcellular Location	Secreted.
Protein Families	TGF-beta family, GDNF subfamily
Database References	HGNC: 4232 OMIM: 171300 KEGG: hsa:2668 STRING: 9606.ENSP00000409007 UniGene: PMID: 30176167 the inverse relationship between GFRalpha1 and C-Ret, as knocking down C-Ret led to increases in GFRalpha1 expression. PMID: 29018141 This study showed that the GDNF levels in preterm newborns were higher in cord blood and lower in CSF as compared to term newborns. PMID: 29031644 We thus confirmed the role of GDNF as an adaptive survival factor, and its alteration appears to have a key role in nephrocalcinosis. We also discovered that, in GDNF-silenced cells, death occurs in a programmed but caspase-independent manner. PMID: 29208768 Results suggested that while alterations at 5:37812784 T > A and 5:37812782 T > A sites related with higher GDNF serum levels and less functionality, and alterations at rs62360370 G > A 3'UTR SNP of GDNF associated with higher severity and lower functionality. However, alterations at both rs2075680 C > A and rs79669773 T > C SNPs affect neither GDNF serum levels nor severity and functionality in bipolar disorder. PMID: 28891527 To our knowledge, this is the first study which correlates GDNF levels with metabolic parameters. Our results show no differences in GDNF serum level between schizophrenia, a first depressive episode, and healthy controls. GDNF serum level did not correlate with metabolic parameters except for total cholesterol in depression. PMID: 28689143 The results suggest an interaction between NGF, GDNF and MMP-9 during the transition to malignancy in prostate cancer (PC). Also this interaction may involve in regulating PC cell differentiation, tumor invasion, progression, and the agressiveness of PC. PMID: 28237042 Study also demonstrates that the interaction between GDNF and proN-cadherin activates specific intracellular signaling pathways; furthermore, GDNF promoted the secretion of matrix metalloproteinase-9 (MMP-9), which degrades the ECM via proN-cadherin. PMID: 28212546 Protective effect of GDNF-engineered amniotic fluid-derived stem cells on the renal ischaemia reperfusion injury in vitro. PMID: 29114949 GDNF has a role in lower than expected motor development, but while IL-1beta and CXCL8/IL-8 values were higher in the group with typical motor development among preterm neonates PMID: 28553016 These findings provide preliminary evidence that silencer II hypermethylation in the gdnf promoter II may underlie high gene transcription in high-grade glioma cells. PMID: 26232065 there is a decrease in epidermal GDNF and GFRalpha-1 protein expression in normal human skin with ageing PMID: 27346872 In SOD1(G93A) spinal cords, we verified a strict correlation in the expression of the TNFalpha, TNFR1 and GDNF triad at different stages of disease progression. Yet, ablation of TNFR1 completely abolished GDNF rises in both SOD1(G93A) astrocytes and spinal cords, a condition that accelerated motor neuron degeneration and disease progression PMID: 27288458 In functional dyspepsia patients, duodenal expression of GDNF protein was significantly increased compared with controls. GDNF was localized in enteric glial cells, eosinophils, and epithelial cells. PMID: 27718082 Suppression of miR-383 may increase the therapeutic potential of human bone-marrow-derived MSCs in treating spinal cord injury via augmentation of GDNF protein levels. PMID: 28365701 Our results suggest that GDNF rs3096140 might be involved in the genetic background of smoking, independent of anxiety characteristics. PMID: 27994179 No correlations between the levels of serum neurotrophins and the severity of ADHD were observed. These results suggest that elevated serum GDNF and NTF3 levels may be related to ADHD in children. PMID: 27561780 BDNF and GDNF interact with the 5-HT-system of the brain through feedback mechanisms engaged in autoregulation PMID: 28320272 Study shows no correlation between GDNF rs884344 and rs3812047 polymorphisms and subjects with tinnitus. PMID: 27180191 These results demonstrate the pivotal role of GDNF as well as the PI3K/Akt pathway, but not the MAPK pathway, in the prevention of diabetesinduced neuronal apoptosis in the hippocampus. PMID: 26549420 Increased plasma levels of GDNF were found in untreated attention deficit hyperactivity disorder patients. PMID: 25753832 GDNF levels were lower in the ECT responders compared with pre-ECT levels PMID: 25354171 The GDNF polymorphism rs3096140 is associated with Tourette syndrome. PMID: 26096985 GDNF levels were significantly higher in mania and lower in schizophrenia compared to healthy controls. BDNF levels were negatively correlated to illness severity scores in affective episodes PMID: 25543333 Data indicate that glial cell-derived neurotrophic factor (GDNF) was down-regulated in the medullary sponge kidney (MSK) cells. PMID: 25692823 Osteogenic features of MSCs from ossification of yellow ligament patients are promoted by un-methylated GDNF. PMID: 25913759 The glial cell line-derived neurotrophic factor(GDNF)-induced growth and differentiation of cultured enteric neurons is paralleled by increased expression of SNAP-25 and formation of synaptic vesicles reflecting enhanced synaptogenesis. PMID: 25655772 improvement in behavioral performance (open-field and grip-strength tests), as well as increased life-span was observed in rodents treated with NCAM-VEGF or NCAM-GDNF co-transfected cells PMID: 25619885 Data indicate the glial cell derived neurotrophic factor (GDNF) signaling pathway as a potential target for improving responses to conventional genotoxic therapeutics. PMID: 25575823 In major depressive disorder patients, serum GDNF levels were lower compared to controls. PMID: 24899094 the PTX-sensitive alpha-subunit of G proteins, Go1 and Gi3, plays an important role in a monoamine-independent production of GDNF evoked by amitriptyline PMID: 25869129 These results suggest that D2R activation induces a Gbetagamma- and extracellular signal-regulated kinase 1/2-dependent increase in the level of Zif268, which functions to directly up-regulate the expression of GDNF. PMID: 23373701 An increased risk of HD[Heroine Dependence] and depression was associated with rs2910709 T/T genotype and rs884344 C allele, respectively, suggesting GDNF is a novel susceptibility gene for depression and HD. PMID: 24022000 histone H3K9 hyperacetylation in promoter II of the gdnf gene might be one of the reasons for its abnormal high transcription in glioma cells. PMID: 24619502 Study found association between single nucleotide polymorphisms in the regulatory sites of Glial Derived Neurotrophic Factor (GDNF) and bipolar disorder. PMID: 24997227 Transgenic expression of human glial cell line-derived neurotrophic factor from integration-deficient lentiviral vectors is neuroprotective in a rodent model of Parkinson's disease. PMID: 24635742 No differences in plasma BDNF, NGF, NT3, NT4 and GDNF were found between autism spectrum disorders and control. PMID: 25275256 GDNF expression was upregulated upon radiation therapy in submandibular glands. PMID: 25036711 This hypothesis offers a dramatically different explanation for the etiology of sporadic Parkinson's disease as a manifestation of acquired resistance to GDNF. PMID: 25448159 serum levels of GDNF may be an unsuitable biomarker for schizophrenia, although it may be associated with working memory in healthy controls and the pathophysiology of attention deficits in schizophrenia. PMID: 24861509 GDNF is a novel candidate gene of anxiety. PMID: 24324616 GDNF increases the metastasis and migration of colon cancer cells PMID: 24165321 Transgenic GDNF+/- mice, not wild-type, show increased kidney glomerular damage with a low nephron number. PMID: 24247178 These findings collectively demonstrate that GFRalpha1 released by nerves enhances perineural invasion through GDNF-RET signaling and that GFRalpha1 expression by cancer cells enhances but is not required for it. PMID: 24778213 Changes in transcriptional factor binding capacity are due to changes in promoter region methylation and might be the underlying mechanism for aberrantly high gdnf expression in glioma. PMID: 23606280 Glial cell-derived neurotrophic factor has a regulatory effect on cell migration in oral squamous cancer. PMID: 24070603 The novelty of the study lies in its large number of exclusively adolescent depression patients showing significant reduction of BDNF, NGF and GDNF serum levels as compared to controls. A gender bias with much reduction in female has also been recorded. PMID: 23769609 inducible lentivirus-mediated hGDNF gene delivery system may provide useful tools for basic research on gene therapy for chronic neurological disorders such as Parkinson's disease PMID: 23717608 Results indicate GDNF-RET signaling as a rational therapeutic target to combat or delay the onset of aromatase inhibitor resistance in breast cancer. PMID: 23650283 Human GDNF protected crayfish neurons and glia from photodynamic injury. PMID: 22847529

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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.

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