Recombinant Human ENSA Protein (His Tag)

Name: Recombinant Human ENSA Protein (His Tag)
Brand: Beta LifeScience
SKU: BLPSN-1766
Availability: InStock

Collections: Other recombinant proteins, Recombinant proteins

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Product Overview

Tag	His
Host Species	Human
Accession	O43768
Synonym	ARPP-19e
Background	Endosulfine alpha, also known as ENSA, belongs to the endosulfine family. It is a highly conserved cAMP-regulated phosphoprotein (ARPP) family. Endosulfine alpha is widely expressed with high levels in skeletal muscle and brain and lower levels in the pancreas. As a protein phosphatase inhibitor, ENSA specifically inhibits protein phosphatase 2A (PP2A) during mitosis. When phosphorylated at Ser-67 during mitosis, specifically interacts with PPP2R2D (PR55-delta) and inhibits its activity, leading to inactivation of PP2A, an essential condition to keep cyclin-B1-CDK1 activity high during M phase By similarity. Endosulfine alpha also acts as a stimulator of insulin secretion by interacting with sulfonylurea receptor (ABCC8), thereby preventing sulfonylurea from binding to its receptor and reducing K(ATP) channel currents.
Description	A DNA sequence encoding the mature form of human ENSA (O43768-1) (Met1-Glu121) was expressed with a His tag at the N-terminus.
Source	E.coli
Predicted N Terminal	His
AA Sequence	Met1-Glu121
Molecular Weight	The recombinant human ENSA consists of 136 a.a. and predicts a molecular mass of 15.2 KDa. It migrates as an approximately 18 KDa band in SDS-PAGE under reducing conditions.
Purity	>90% as determined by SDS-PAGE
Endotoxin	Please contact us for more information.
Bioactivity	Please contact us for detailed information
Formulation	Lyophilized from sterile PBS, pH 7.4..
Stability	The recombinant proteins are stable for up to 1 year from date of receipt at -70°C.
Usage	For Research Use Only
Storage	Store the protein under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

Target Details

Target Function	Protein phosphatase inhibitor that specifically inhibits protein phosphatase 2A (PP2A) during mitosis. When phosphorylated at Ser-67 during mitosis, specifically interacts with PPP2R2D (PR55-delta) and inhibits its activity, leading to inactivation of PP2A, an essential condition to keep cyclin-B1-CDK1 activity high during M phase. Also acts as a stimulator of insulin secretion by interacting with sulfonylurea receptor (ABCC8), thereby preventing sulfonylurea from binding to its receptor and reducing K(ATP) channel currents.
Subcellular Location	Cytoplasm.
Protein Families	Endosulfine family
Database References	HGNC: 3360 OMIM: 603061 KEGG: hsa:2029 UniGene: Hs.632456
Tissue Specificity	Widely expressed with high levels in skeletal muscle and brain and lower levels in the pancreas.

Gene Functions References

The extended S phase in Ensa-depleted cells is completely rescued by the overexpression of Treslin. PMID: 28785014
Taken together our results suggest a hierarchy of phosphatases coordinating Greatwall, Ensa/ARPP19 and Cdk substrate dephosphorylation during mitotic exit. PMID: 24391510
Overexpressed ENSA suppresses tumor growth in an established hepatic cell line whereas hypermethylated ENSA might help maintain liver cancer initiating cells. PMID: 24211627
The considerably decreased alpha-endosulfine could result in the continuous opening of K(ATP) channels and the subsequent decrease of neurotransmitters release associated with cognition in Down Syndrome. PMID: 11771735
We mapped ENSA in silico to chromosome 1q21 near a confirmed type 2 diabetes susceptibility locus, and derived the genomic structure of four exons and three introns. PMID: 14728986
The ENSA gene on 1q21 produces several alternatively spliced transcripts, and is located within a region linked with T2DM in diverse populations including the Pima Indians PMID: 14728987

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.