Recombinant Human LSM4 Protein (N-6His)

Name: Recombinant Human LSM4 Protein (N-6His)
Brand: Beta LifeScience
SKU: BL-0361NP
Availability: InStock

BL-0361NP: Greater than 90% as determined by reducing SDS-PAGE. (QC verified)

Collections: Other recombinant proteins, Recombinant proteins

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Product Overview

Description	Recombinant Human U6 snRNA-Associated Sm-Like Protein LSm4 is produced by our E.coli expression system and the target gene encoding Met1-Gln139 is expressed with a 6His tag at the N-terminus.
Accession	Q9Y4Z0
Synonym	U6 snRNA-Associated Sm-Like Protein LSm4; Glycine-Rich Protein; GRP; LSM4
Gene Background	U6 snRNA-associated Sm-like protein LSm4 (LSM4) is a member of the snRNP Sm proteins family. Sm-like proteins contain the Sm sequence motif and are thought to form a stable heteromer present in tri-snRNP particles, which are important for pre-mRNA splicing. LSM4 forms a heteromer with a donut shape. The complexes are involved in various steps of RNA metabolism. LSM4 binds specifically to the 3-terminal U-tract of U6 snRNA. LSM4 contributes RNA protein interactions and structural changes which are essential during ribosomal subunit assembly.
Molecular Mass	17.5 KDa
Apmol Mass	17 KDa, reducing conditions
Formulation	Lyophilized from a 0.2 μm filtered solution of 20mM Tris-HCl, 100mM NaCl, 1mM DTT, pH 8.0 .
Endotoxin	Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Purity	Greater than 90% as determined by reducing SDS-PAGE. (QC verified)
Biological Activity	Not tested
Reconstitution	Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100μg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Storage	Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months.
Shipping	The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below.
Usage	For Research Use Only

Target Details

Target Function	Plays role in pre-mRNA splicing as component of the U4/U6-U5 tri-snRNP complex that is involved in spliceosome assembly, and as component of the precatalytic spliceosome (spliceosome B complex). The heptameric LSM2-8 complex binds specifically to the 3'-terminal U-tract of U6 snRNA.
Subcellular Location	Nucleus.
Protein Families	SnRNP Sm proteins family
Database References	HGNC: 17259 OMIM: 607284 KEGG: hsa:25804 STRING: 9606.ENSP00000469468 UniGene: Hs.515255

Gene Functions References

Results show that the RGG domain of human Lsm4 stimulates processing bodies formation. Also, a novel interaction of the Lsm4 RGG domain with HAT1 and RBBP7 was discovered, leading to the possibility of a posttranslational modifications network involved in mRNP regulation. PMID: 27247266
C-terminal extension of Lsm4 interacts directly with the histone mRNP, contacting both SLBP and 3'hExo. PMID: 24255165
Data show that ICln159, a truncated ICln mutant, belongs to the pleckstrin homology (PH) domain family of proteins and interacts with LSm4, a protein involved in splicing and mRNA degradation. PMID: 15905169
Gene induces transformed phenotype when overexpressed in a cancer breast cell line. PMID: 17178857
LSm4 not only acts in RNA processing, but also as a co-factor in cell volume regulation. PMID: 19088440

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.