Recombinant Human Neurofilament Medium Polypeptide (NEFM) Protein (His)

Name: Recombinant Human Neurofilament Medium Polypeptide (NEFM) Protein (His)
Brand: Beta LifeScience
SKU: BLC-06635P
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 Human Neurofilament Medium Polypeptide (NEFM) Protein (His) is produced by our Yeast expression system. This is a protein fragment.
Purity	Greater than 85% as determined by SDS-PAGE.
Uniprotkb	P07197
Target Symbol	NEFM
Synonyms	(NF-M)(160 kDa neurofilament protein)(Neurofilament 3)(Neurofilament triplet M protein)
Species	Homo sapiens (Human)
Expression System	Yeast
Tag	C-6His
Target Protein Sequence	EKKEAAEEKEEEPEAEEEEVAAKKSPVKATAPEVKEEEGEKEEEEGQEEEEEEDEGAKSDQAEEGGSEKEGSSEKEEGEQEEGETEAEAEGEEAEAKEEKKVEEKSEEVATKEELVADAKVEKPEKAKSPVPKSPVEEKGKSPVPKSPVEEKGKSPVPKSPVEEKGKSPVPKSPVEEKGKSPVSKSPVEEKAKSPVPKSPVEEAKSKAEVGKGEQKEEEEKEVKEAPKEEKVEKKEEKPKDVPEKKKAESPVKE
Expression Range	487-740aa
Protein Length	Partial
Mol. Weight	29.3 kDa
Research Area	Developmental Biology
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	Neurofilaments usually contain three intermediate filament proteins: NEFL, NEFM, and NEFH which are involved in the maintenance of neuronal caliber. May additionally cooperate with the neuronal intermediate filament proteins PRPH and INA to form neuronal filamentous networks.
Subcellular Location	Cytoplasm, cytoskeleton. Cell projection, axon.
Protein Families	Intermediate filament family
Database References	HGNC: 7734 OMIM: 162250 KEGG: hsa:4741 STRING: 9606.ENSP00000221166 UniGene: PMID: 28634551 NEFM is a negative regulator of aldosterone production and cell proliferation, in part by facilitating D1R internalization from the plasma membrane in Adosterone-producing Adenomas. PMID: 28584012 There was a strongly elevated reactivity against neurofilament medium in a subset of schizophrenia patients compared to controls. PMID: 24636402 direct evidence that NF-M/H are hyperphosphorylated in Alzheimer disease PMID: 20624930 the importance of alpha-internexin and NF-L in regulating the conformations of NF-M and NF-H PMID: 20213320 This protein has been found differentially expressed in the anterior cingulate cortex from patients with schizophrenia PMID: 20381070 To study if the increase of levels of neurofilament (NF)-M and NF-L in brain of Alzheimer's diseases (AD) is caused by increase of NF-M and NF-L. PMID: 12133495 Two polymorphisms of neurofilament M(Ala475Thr and Gly697Arg) occurred at similar frequencies in PD patients and controls. A Pro725Gln substitution and a deletion of valine in position 829 were identified in two PD patients. PMID: 14583397 The G336S variant of hNF-M does not affect the formation of IF networks nor the distribution of the variant hNFM protein. If the G336S variant is involved in the development of PD, it isn't due to defects in the assembly and distribution of NFs. PMID: 15290901 O-glycosylation of NF-M is highly dynamic and closely interwoven with phosphorylation cascades and may have a pathophysiological role. PMID: 16006557 mutations in neurofilaments are possible risk factors that may contribute to pathogenesis in amytrophic lateral sclerosis in conjunction with one or more additional genetic or environmental factors, but are not significant primary causes PMID: 16084104 variation in NEF3 influence rate of response to typical antipsychotic medication PMID: 16734940

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.