Pro BDNF Protein

Catalog No. ABIN7491767

Product Details

Target: Pro BDNF (proBDNF) (Pro-Brain-Derived Neurotrophic Factor (proBDNF))

Protein Type: Recombinant

Origin: Mouse

Source: Escherichia coli (E. coli)

Application: Western Blotting (WB)

Purpose: Mouse proBrain-Derived Neutrotrophic Factor, Recombinant, E. coli

Sequence: MAPMKEVNVH GQGNLAYPGV RTHGTLESVN GPRAGSRGLT TTSLADTFEH VIEELLDEDQ KVRPNEENHK DADLYTSRVM LSSQVPLEPP LLFLLEEYKN YLDAANMSMR VRRHSDPARR GELSVCDSIS EWVTAADKKT AVDMSGGTVT VLEKVPVSKG QLKQYFYETK CNPMGYTKEG CRGIDKRHWN SQCRTTQSYV RALTMDSKKR IGWRFIRIDT SCVCTLTIKR GR (the prodomain is shown in bold)

Specificity: Toxin target: p75NTR, Sortilin receptors

Characteristics: Mouse proBrain-Derived Neutrotrophic Factor, Recombinant, E. coli

Purity: ≥98 % (HPLC)

Sterility: 0.2 μm filtered

Application Details

Application Notes: Antigen Preadsorption Control: 0.2 nM

Restrictions: For Research Use only

Handling

Format: Lyophilized

Reconstitution: Centrifuge the vial (10,000 x g for 5 minutes) before adding solvent to spin down all the powder to the bottom of the vial. The lyophilized product may be difficult to visualize. Add solvent directly to the centrifuged vial. Gently tap, tilt, and roll the vial to aid dissolution. Avoid vigorous vortexing, light vortexing for up to 3 seconds is acceptable if needed. For long-term storage in solution, we recommend preparing a stock solution by dissolving the product in sterile water at a concentration of at least 0.1 mg/mL. Divide the stock solution into small aliquots and store at -20 °C. Before use, thaw the relevant vial(s) and dilute to the desired working concentration in your working buffer. It is recommended to prepare fresh solutions in working buffers just before use. Repeated freeze-thaw cycles may result in loss of activity.

Buffer: Lyophilized from double distilled water (ddH2O). May contain TFA as a residual counter ion.

Storage: -20 °C

Storage Comment: The reconstituted solution can be stored at 4°C for up to 1 week. For longer periods (up to 6 months), small aliquots should be stored at -20°C. We do not recommend storing the product in working solutions for longer than a few days. Avoid multiple freeze-thaw cycles.,The reconstituted solution can be stored at 4°C for up to 1 week. For longer periods (up to 6 months), small aliquots should be stored at -20°C. We do not recommend storing the product in working solutions for longer than a few days. Avoid multiple freeze-thaw cycles.

Target Details

Target: Pro BDNF (proBDNF) (Pro-Brain-Derived Neurotrophic Factor (proBDNF))

Alternative Name: proBDNF (proBDNF Products)

Background: ProBrain-Derived Neurotrophic Factor,BDNF is a neurotrophic factor produced by proteolytic cleavage of its precursor, proBDNF. The biologically relevant form of the protein was thought to be the mature form, BDNF, which has been shown to affect the development of motoneurons, modulate synaptic transmission and affect axonal branching, dendrite growth and synapse number.1 These actions are mediated via the binding of BDNF to TrkB. Different actions are mediated by the binding of BDNF to p75 such as neuronal process retraction2 and neuronal apoptosis.3 The precursor form was thought to be important for the correct folding, secretion and trafficking of the mature protein. A single-nucleotide polymorphism (Val66 to Met) in the pro-domain of the human BDNF gene impairs intracellular trafficking and regulated secretion of BDNF in primary cortical neurons and neurosecretory cells but not in endothelial and vascular cells.4 This has been shown to affect memory and lead to abnormal hippocampal function in humans.5The finding that proBDNF and not mature BDNF is the preferred ligand for p756 has ushered in a new era which reexamines the biological roles of the two forms. Contradictory biological roles for proBDNF have been proposed. It has been shown to be a pro-apoptotic ligand for sympathetic neurons7 expressing both p75 and sortlin, and to be involved in LTD8. On the other hand it has also been shown to elicit prototypical TrkB responses in biological assays, such as TrkB tyrosine phosphorylation, and activation of ERK1/2.9 Binding of both proBDNF and mature BDNF to TrkB has been proposed to be via the R103 residue in the mature portion.9 In addition, the question of the relative abundance of the precursor vs the mature form has been investigated. In brain homogenates a mixture of proBDNF and mature BDNF has been found.10,11 The secretion of proBDNF from cortical neurons has been shown.7 Most of the work showing secretion of proBDNF was done in cell lines overexpressing full length BDNF constructs.4, 6, 12, 13 It has been argued14 that this model misrepresents the authentic situation in vivo, since in the transfected systems the secretion of proBDNF results from overloading the limited capacity of the processing machinery. These authors argue that in fact proBDNF is a transient intermediate and is rapidly converted intracellularly to mature BDNF.

Molecular Weight: 52.4 kDa (dimer)