Recombinant Human Amyloid Beta A4 Precursor Protein-Binding Family A Member 2 (APBA2) Protein (His&Myc)

Beta LifeScience SKU/CAT #: BLC-01799P
Greater than 85% as determined by SDS-PAGE.
Greater than 85% as determined by SDS-PAGE.

Recombinant Human Amyloid Beta A4 Precursor Protein-Binding Family A Member 2 (APBA2) Protein (His&Myc)

Beta LifeScience SKU/CAT #: BLC-01799P
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 Human Amyloid Beta A4 Precursor Protein-Binding Family A Member 2 (APBA2) Protein (His&Myc) is produced by our E.coli expression system. This is a full length protein.
Purity Greater than 85% as determined by SDS-PAGE.
Uniprotkb Q99767
Target Symbol APBA2
Synonyms Adapter protein X11beta Neuron-specific X11L protein Neuronal Munc18-1-interacting protein 2
Species Homo sapiens (Human)
Expression System E.coli
Tag N-10His&C-Myc
Target Protein Sequence MAHRKLESVGSGMLDHRVRPGPVPHSQEPESEDMELPLEGYVPEGLELAALRPESPAPEEQECHNHSPDGDSSSDYVNNTSEEEDYDEGLPEEEEGITYYIRYCPEDDSYLEGMDCNGEEYLAHSAHPVDTDECQEAVEEWTDSAGPHPHGHEAEGSQDYPDGQLPIPEDEPSVLEAHDQEEDGHYCASKEGYQDYYPEEANGNTGASPYRLRRGDGDLEDQEEDIDQIVAEIKMSLSMTSITSASEASPEHGPEPGPEDSVEACPPIKASCSPSRHEARPKSLNLLPEAKHPGDPQRGFKPKTRTPEERLKWPHEQVCNGLEQPRKQQRSDLNGPVDNNNIPETKKVASFPSFVAVPGPCEPEDLIDGIIFAANYLGSTQLLSERNPSKNIRMMQAQEAVSRVKRMQKAAKIKKKANSEGDAQTLTEVDLFISTQRIKVLNADTQETMMDHALRTISYIADIGNIVVLMARRRMPRSASQDCIETTPGAQEGKKQYKMICHVFESEDAQLIAQSIGQAFSVAYQEFLRANGINPEDLSQKEYSDIINTQEMYNDDLIHFSNSENCKELQLEKHKGEILGVVVVESGWGSILPTVILANMMNGGPAARSGKLSIGDQIMSINGTSLVGLPLATCQGIIKGLKNQTQVKLNIVSCPPVTTVLIKRPDLKYQLGFSVQNGIICSLMRGGIAERGGVRVGHRIIEINGQSVVATAHEKIVQALSNSVGEIHMKTMPAAMFRLLTGQETPLYI
Expression Range 1-749aa
Protein Length Full Length
Mol. Weight 90.0 kDa
Research Area Neuroscience
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 Putative function in synaptic vesicle exocytosis by binding to STXBP1, an essential component of the synaptic vesicle exocytotic machinery. May modulate processing of the amyloid-beta precursor protein (APP) and hence formation of APP-beta.
Database References
Tissue Specificity Brain.

Gene Functions References

  1. These results support the hypothesis that APBA2 gene expression in different areas of Alzheimer's patient's brains. PMID: 28164769
  2. Aberrant MINT2 methylation in body fluids may predict peritoneal micrometastasis for gastric cancer (GC) patients, which is a potential poor prognostic factor in GC. PMID: 24385013
  3. a significant difference was shown for APBA2 gene expression of peripheral lymphocytes between Chinese Han Tourette syndrome (TS) group and healthy controls idicating the APBA2 gene is a promising peripheral blood biomarker that discriminates between patients with TS and healthy subjects PMID: 23076970
  4. Amyloid beta A4 precursor protein-binding family A member 2 contains a potent neuronal promoter whose activity may be regulated by DNA methylation and glucocorticoid receptor [alpha], paired box protein 5. PMID: 22222501
  5. The co-occurrence of two nonsynonymous mutations in both affected siblings in a single family, each transmitted from a different unaffected parent, suggest a role for APBA2 mutations in rare individuals with ASD. PMID: 20029827
  6. APBA2 were genes activated in early endometrial endometrioid carcinoma (stages I-II). PMID: 20015385
  7. X11beta-mediated reduction in cerebral Abeta is associated with cognition and long-term potentiation in Alzheimer's disease APPswe transgenic mice. PMID: 19744962
  8. Interaction of transcriptional coactivators with Mint1 or Mint2 prevents nuclear localization and transactivation of the transduction network mediated by amyloid precursor protein. PMID: 20016085
  9. The APBA2 gene has been found to map to a more telomeric location in chromosome 15q13 than previously found, and is partially duplicated within the broader region located approximately 5 Mb distal to the intact locus. PMID: 12720574
  10. hXB51 isoforms regulate Abeta generation differently, either enhancing it by modifying the association of X11L with APP or suppressing it in an X11L-independent manner PMID: 12780348
  11. This protein, which is a member of the mammalian LIN-10 protein family and a possible regulator of Abeta production, elevated APP and APLP2 phosphorylation PMID: 14970211
  12. Comparative genome hybridization suggests a role for NRXN1 and APBA2 in schizophrenia. PMID: 17989066
  13. Phosphorylation of amino acids Ser236 and Ser238 in the X11L regulatory region are critical for increasing association of X11L and amyloid beta-protein precursor and are conserved in X11, a neuronal X11 family protein, but not in non-neuronal X11L2. PMID: 19222704

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.

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