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SRP3014

Sigma-Aldrich

BDNF human

Carrier free, recombinant, expressed in E. coli, ≥95% (SDS-PAGE), suitable for cell culture

Synonym(s):

Brain Derived Neurotrophic Factor

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About This Item

UNSPSC Code:
12352202
NACRES:
NA.32
Pricing and availability is not currently available.

biological source

human

Quality Level

200

recombinant

expressed in E. coli

Assay

≥95% (SDS-PAGE)

form

lyophilized

mol wt

27.0 kDa

packaging

pkg of 10 μg

technique(s)

cell culture | mammalian: suitable

impurities

≤1.00 EU/μg endotoxin, tested

UniProt accession no.

P23560

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... BDNF(627)

General description

The gene BDNF (brain derived neurotrophic factor) is mapped to human chromosome 11p14.1.[1] BDNF is a member of the neurotrophin family of growth factors.[2][3] The gene encodes a precursor protein, proBDNF. Mature BDNF (mBDNF) is synthesized by post-translational cleavage of proBDNF. Both proBDNF and mBDNF play crucial roles in cellular signaling.[4] BDNF is expressed as the C-terminal portion of a 247 amino acid polypeptide precursor, which also contains a signal sequence of 18 amino acid residue and a propeptide of 110 amino acid residues. Recombinant human BDNF is a 27.0kDa homodimer of two 119 amino acid subunits linked by strong noncovalent interactions.

Biochem/physiol Actions

Like other members of this family, BDNF (brain derived neurotrophic factor) supports neuron proliferation and survival. BDNF can bind to a low affinity cell surface receptor called LNGFR (low-affinity nerve growth factor receptor), which also binds other neurotrophins such as NGF (nerve growth factor), NT-3 (neurotrophin-3) and NT-4. However, BDNF mediates its neurotrophic properties by signaling through a high affinity cell surface receptor called gp145/trkB (tropomyosin-related kinase B).[2] BDNF also plays an important role in vascular function and participates in angiogenesis.[5] It is involved in the pathogenesis of Alzheimer′s disease. ProBDNF interacts with p75 neurotrophin receptor, leading to long-term depression in the hippocampus.[4]

Sequence

MHSDPARRGE LSVCDSISEW VTAADKKTAV DMSGGTVTVL EKVPVSKGQL KQYFYETKCN PMGYTKEGCR GIDKRHWNSQ CRTTQSYVRA LTMDSKKRIG WRFIRIDTSC VCTLTIKRGR

Physical form

Lyophilized with no additives.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a stabilizer (example 5% Trehalose) and store in working aliquots at -20°C to -80°C.

Analysis Note

The biological activity is determined by its ability to stimulate the proliferation of human neuroblastoma cells, SH-SY5Y.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
0000348742
0000282587
0000251766
0000251765
0000282587

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Nia M Harris et al.
Pharmacology, biochemistry, and behavior, 150-151, 48-56 (2016-10-26)
Low levels of brain-derived neurotrophic factor (BDNF) are linked to delayed neurological recovery, depression, and cognitive impairment following stroke. Supplementation with BDNF reverses these effects. Unfortunately, systemically administered BDNF in its native form has minimal therapeutic value due to its
Cherian K Kandathil et al.
Hearing research, 342, 134-143 (2016-10-25)
Many previous studies have shown significant neurotrophic effects of intracochlear delivery of BDNF in preventing degeneration of cochlear spiral ganglion (SG) neurons after deafness in rodents and our laboratory has shown similar results in developing cats deafened prior to hearing
Function and evolution in the NGF family and its receptors.
Journal of Neuroscience Research, 32, 461-470 (1992)
Elisabetta Palazzo et al.
International journal of molecular sciences, 20(14) (2019-07-25)
Well-regulated epidermal homeostasis depends on the function of different classes of factors, such as transcription regulators and receptors. Alterations in this homeostatic balance may lead to the development of cutaneous squamous tumorigenesis. The homeobox transcription factor DLX3 is determinant for
Naoyuki Himi et al.
Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association, 25(12), 2987-2994 (2016-09-19)
Exercise in the early stage after stroke onset has been shown to facilitate the recovery from physical dysfunction. However, the mechanism of recovery has not been clarified. In this study, the effect of exercise on spatial memory function recovery in
View All Related Papers

Questions

  1. We ordered rBDNF (SRP3014-10UG) to be used for cell culture . As we plan to store the compound for more than a week. What other stabilizer compound asiide  from 5% Trehalose can we use to store the compound longer once reconstituted. Thank you.

    1 answer

    1. This product is carrier free and has not been tested for long term solution stability. The addition of a carrier, such as BSA or HAS at 0.1%, would be expected to improve the long term stability of this material in solution. Product B3795 is a BDNF product that includes BSA as a carrier protein. This item may be stored in solution for up to 1 week at 2-8 °C or stored in working aliquots at –20 °C for several months.

      Please see the link below to review this product datasheet:
      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/185/661/b3795dat-ms.pdf

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