Recombinant Human Gamma-Aminobutyric Acid Receptor Subunit Alpha-4 (GABRA4) Protein (His/Tag-Free)

Name: Recombinant Human Gamma-Aminobutyric Acid Receptor Subunit Alpha-4 (GABRA4) Protein (His/Tag-Free)
Brand: Beta LifeScience
SKU: BLC-11304P
Availability: InStock

Collections: High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Gamma-Aminobutyric Acid Receptor Subunit Alpha-4 (GABRA4) Protein (His/Tag-Free) is produced by our Yeast expression system. This is a extracellular protein.
Purity	Greater than 85% as determined by SDS-PAGE.
Uniprotkb	P48169
Target Symbol	GABRA4
Synonyms	GABA(A) receptor subunit alpha 4; GABA(A) receptor subunit alpha-4; GABR A4; GABRA 4; Gabra4; Gamma aminobutyric acid (GABA) A receptor alpha 4; Gamma aminobutyric acid A receptor alpha 4; Gamma aminobutyric acid receptor alpha 4 subunit; Gamma aminobutyric acid receptor subunit alpha 4; Gamma-aminobutyric acid receptor subunit alpha-4; GBRA4_HUMAN
Species	Homo sapiens (Human)
Expression System	Yeast
Tag	N-His/Tag-Free
Protein Length	Extracellular domain
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.
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	GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
Subcellular Location	Cell junction, synapse, postsynaptic cell membrane; Multi-pass membrane protein. Cell membrane; Multi-pass membrane protein.
Protein Families	Ligand-gated ion channel (TC 1.A.9) family, Gamma-aminobutyric acid receptor (TC 1.A.9.5) subfamily, GABRA4 sub-subfamily
Database References	HGNC: 4078 OMIM: 137141 KEGG: hsa:2557 STRING: 9606.ENSP00000264318 UniGene: PMID: 26239769 The ability of neurosteroids to modulate the phosphorylation and membrane insertion of alpha4 subunit-containing GABAARs may underlie the profound effects these endogenous signaling molecules have on neuronal excitability and behavior. PMID: 24778259 Transgenic mice with the alpha4betadelta GABAA receptor subunit deletion show increased conditioned place preference, but not from delta-deficient or alpha4-deficient knockout mice. PMID: 24431441 The pathway by which GABRA2 initially confers risk for eventual alcohol problems begins with a predisposition to sensation-seeking early in adolescence. PMID: 23561058 Association between premenstrual symptom severity and two genes from the gamma-aminobutyric acid (GABA) pathway: steroid-5-alpha-reductase, alpha polypeptide 1 (SRD5A1) and gamma-aminobutyric acid receptor subunit alpha-4 (GABRA4). PMID: 22273344 single nucleotide polymorphisms studied in the GABRA4, GABRE, and GABRQ genes are not related to the risk for familial ET. PMID: 21422964 truncated alpha 4 N-terminus may play a post-translational regulatory role in intracellular folding/glycosylation/assembly of the alpha 4 subunit PMID: 12242096 GABRA4 is involved in the etiology of autism and potentially increases autism risk through interaction with GABRB1. PMID: 16080114 These results confirmed our earlier findings, indicating GABRA4 and GABRB1 as genes contributing to autism susceptibility, extending the effect to multiple ethnic groups and suggesting seizures as a stratifying phenotype. PMID: 16770606 alpha4beta3gamma2L receptors have unique kinetic properties that limit the range of GABA applications to which they can respond maximally. PMID: 17124266 Only two of the newly genotyped SNPs, rs10517173, rs16851647, were associated with nicotine dependence (observed P-values of 0.002, corrected FDR-BH P-values of 0.02). However, these SNPs were in complete LD with each other and with rs11731576. PMID: 19207358 Lower delta mRNA levels in schizophrenia might reflect a reduced number of alpha(1)beta(x)delta GABA(A) receptors that could contribute to deficient tonic inhibition and prefrontal cortical dysfunction in schizophrenia. PMID: 19289452

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.