Recombinant Human Rho Guanine Nucleotide Exchange Factor 18 (ARHGEF18) Protein (GST)

Name: Recombinant Human Rho Guanine Nucleotide Exchange Factor 18 (ARHGEF18) Protein (GST)
Brand: Beta LifeScience
SKU: BLC-08424P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Collections: All products, High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Rho Guanine Nucleotide Exchange Factor 18 (ARHGEF18) Protein (GST) is produced by our E.coli expression system. This is a protein fragment.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	Q6ZSZ5
Target Symbol	ARHGEF18
Synonyms	114 kDa Rho specific guanine nucleotide exchange factor; 114 kDa Rho-specific guanine nucleotide exchange factor; ARHGEF 18; Arhgef18; ARHGI_HUMAN; KIAA0521; MGC15913; p114 Rho GEF; p114-Rho-GEF; p114RhoGEF; Rho guanine nucleotide exchange factor 18; Rho specific guanine nucleotide exchange factor p114; Rho/Rac guanine nucleotide exchange factor (GEF) 18; Rho/Rac guanine nucleotide exchange factor 18; SA RhoGEF; SA-RhoGEF; Septin associated RhoGEF; Septin-associated RhoGEF
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-GST
Target Protein Sequence	MTVSQKGGPQPTPSPAGPGTQLGPITGEMDEADSAFLKFKQTADDSLSLTSPNTESIFVEDPYTASLRSEIESDGHEFEAESWSLAVDAAYAKKQKREVVKRQDVLYELMQTEVHHVRTLKIMLKVYSRALQEELQFSSKAIGRLFPCADDLLETHSHFLARLKERRQESLEEGSDRNYVIQKIGDLLVQQFSGENGERMKEKYGVFCSGHNEAVSHYKLLLQQNKKFQNLIKKIGNFSIVRRLGVQECILLVTQRITKYPVLVERIIQNTEAGTEDYEDLTQALNLIKDIISQVDAKVSECEKGQRLREIAGKMDLKSSSKLKNGLTFRKEDMLQRQLHLEGMLCWKTTSGRLKDILAILLTDVLLLLQEKDQKYVFASVDSKPPVISLQKL
Expression Range	159-551aa
Protein Length	Partial
Mol. Weight	71.5kDa
Research Area	Signal Transduction
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	Acts as guanine nucleotide exchange factor (GEF) for RhoA GTPases. Its activation induces formation of actin stress fibers. Also acts as a GEF for RAC1, inducing production of reactive oxygen species (ROS). Does not act as a GEF for CDC42. The G protein beta-gamma (Gbetagamma) subunits of heterotrimeric G proteins act as activators, explaining the integrated effects of LPA and other G-protein coupled receptor agonists on actin stress fiber formation, cell shape change and ROS production. Required for EPB41L4B-mediated regulation of the circumferential actomyosin belt in epithelial cells.
Subcellular Location	Cytoplasm. Cytoplasm, cytoskeleton. Cell membrane. Apical cell membrane.
Database References	HGNC: 17090 OMIM: 616432 KEGG: hsa:23370 STRING: 9606.ENSP00000352995 UniGene: PMID: 28132693 CRB3A recruits p114RhoGEF and its activator Ehm2 to the cell periphery using both functional motifs of its cytoplasmic tail and increases RhoA activation levels. PMID: 26217016 LKB1 and p114RhoGEF control RhoA activity in bronchial epithelial cells to promote apical junction assembly. PMID: 23648482 Stimulation of cortical myosin phosphorylation by p114RhoGEF drives cell migration and tumor cell invasion. PMID: 23185572 In its regulation of the circumferential actomyosin tensile system, Lulu2 interacts with and activates p114RhoGEF at apical cell-cell junctions. PMID: 22006950 Data indicate that p114RhoGEF is a component of a junction-associated Rho signalling module that drives spatially restricted activation of RhoA to regulate junction formation and epithelial morphogenesis. PMID: 21258369 p114-RhoGEF and Lfc are critically involved in Wnt-3a- and Dvl-induced RhoA activation and neurite retraction in N1E-115 cells. PMID: 20810787 data showed that the novel guanine nucleotide exchange factor p114RhoGEF regulates the activity of RhoA and Rac1, and that Gbetagamma subunits of heterotrimeric G proteins are activators of p114RhoGEF under physiological conditions PMID: 14512443

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.