Recombinant Mouse Transcription Factor Mafk (MAFK) Protein (His&Myc)

Name: Recombinant Mouse Transcription Factor Mafk (MAFK) Protein (His&Myc)
Brand: Beta LifeScience
SKU: BLC-08047P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Our products are highly customizable to meet your specific needs. You can choose options such as endotoxin removal, liquid or lyophilized forms, preferred tags, and the desired functional sequence range for proteins. Submitting a written inquiry expedites the quoting process.

Product Overview

Description	Recombinant Mouse Transcription Factor Mafk (MAFK) Protein (His&Myc) is produced by our E.coli expression system. This is a full length protein.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	Q61827
Target Symbol	MAFK
Synonyms	Mafk; Nfe2u; Transcription factor MafK; Erythroid transcription factor NF-E2 p18 subunit
Species	Mus musculus (Mouse)
Expression System	E.coli
Tag	N-10His&C-Myc
Target Protein Sequence	MTTNPKPNKALKVKKEAGENAPVLSDDELVSMSVRELNQHLRGLTKEEVTRLKQRRRTLKNRGYAASCRIKRVTQKEELERQRVELQQEVEKLARENSSMRLELDALRSKYEALQTFARTVARGPVTPTKVATTSVITIVKSAELSSTSVPFSAAS
Expression Range	1-156aa
Protein Length	Full Length
Mol. Weight	22.5 kDa
Research Area	Epigenetics And Nuclear Signaling
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	Since they lack a putative transactivation domain, the small Mafs behave as transcriptional repressors when they dimerize among themselves. However, they act as transcriptional activators by dimerizing with other (usually larger) basic-zipper proteins, such as NFE2, NFE2L1/NRF1, NFE2L2/NRF2 and NFE2L3/NRF3, and recruiting them to specific DNA-binding sites. Small Maf proteins heterodimerize with Fos and may act as competitive repressors of the NF-E2 transcription factor.
Subcellular Location	Nucleus.
Protein Families	BZIP family, Maf subfamily
Database References	KEGG: mmu:17135 STRING: 10090.ENSMUSP00000018287 UniGene: Mm.157313
Tissue Specificity	Highly expressed in heart, skeletal muscle and placenta. Also expressed in erythroid cells.

Gene Functions References

beta-Cell-Specific Mafk Overexpression Impairs Pancreatic Endocrine Cell Development PMID: 26901059
KAP-1 may contribute to the repression of Ey and beta-major globin gene transcription through recruitment to the promoters of these two genes, mediated by the interaction of KAP-1 with either Zfp445 or MafK, respectively PMID: 23291531
regulation of dynamic exchange with Bach1 PMID: 14747657
mafG::mafK::mafF triple-mutant fibroblasts that completely lack small Mafs are highly susceptible to oxidative stress. (mafK) PMID: 16135796
DNA-binding activity of endogenous MafA was significantly increased in the MafK transgenic mice PMID: 16780794
The involvement of both HNF4alpha and NF-E2 in Abcc6 gene regulation suggests that Abcc6 might be involved in a detoxification processes related to hemoglobin or heme. PMID: 16997394
MafK/NF-E2 p18 recruitment was involved in the physical proximity of LCR and active beta-globin genes upon beta-globin gene transcriptional activation. PMID: 18308612
Histological analysis revealed that embryonic development of beta cells in the MafA(-/-)MafK(+) mice was significantly suppressed and the reduced number of beta cells was responsible for the early onset of diabetes. PMID: 19715672

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.