GARS Human

Glycyl-TRNA Synthetase Human Recombinant
Cat. No.
BT25924
Source
Escherichia Coli.
Synonyms
Glycine--tRNA ligase, Diadenosine tetraphosphate synthetase, AP-4-A synthetase, Glycyl-tRNA synthetase, GlyRS, GARS, CMT2D, DSMAV, HMN5, SMAD1.
Appearance
Sterile Filtered colorless solution.
Purity
Greater than 85.0% as determined by SDS-PAGE.
Usage
THE BioTek's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Shipped with Ice Packs
In Stock

Description

GARS Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 270 amino acids (43-289 a.a) and having a molecular mass of 30kDa.
GARS is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Product Specs

Introduction
Glycyl-tRNA synthetase (GARS) is a critical enzyme belonging to the class II family of tRNA synthetases. It plays a vital role in protein synthesis by catalyzing the attachment of glycine to its corresponding tRNA molecule, tRNA(Gly). This process ensures the accurate incorporation of glycine into growing polypeptide chains. GARS also exhibits an additional function by mediating the synthesis of diadenosine tetraphosphate (Ap4A), a signaling molecule involved in various cellular regulatory pathways. Ap4A production by GARS occurs through the direct condensation of two ATP molecules. Notably, GARS has been identified as an autoantigen in autoimmune diseases such as polymyositis and dermatomyositis, highlighting its potential clinical relevance.
Description
Recombinant human GARS protein, expressed in E. coli, is available as a single, non-glycosylated polypeptide chain. This protein consists of 270 amino acids, spanning from residues 43 to 289, and has a molecular weight of 30 kDa. The N-terminus of GARS is fused to a 23 amino acid His-tag to facilitate purification, which is achieved using proprietary chromatographic methods.
Physical Appearance
Clear, colorless solution that has been sterilized by filtration.
Formulation
The GARS protein solution is provided at a concentration of 0.5 mg/ml. The formulation buffer consists of 20 mM Tris-HCl (pH 8.0), 0.15 M NaCl, 10% glycerol, and 1 mM DTT.
Stability
For short-term storage (2-4 weeks), the GARS protein solution should be stored at 4°C. For extended storage, it is recommended to freeze the solution at -20°C. To further enhance stability during long-term storage, the addition of a carrier protein such as HSA or BSA to a final concentration of 0.1% is advisable. Repeated freezing and thawing of the protein solution should be avoided to maintain optimal protein integrity.
Purity
The purity of the GARS protein is greater than 85%, as determined by SDS-PAGE analysis.
Synonyms
Glycine--tRNA ligase, Diadenosine tetraphosphate synthetase, AP-4-A synthetase, Glycyl-tRNA synthetase, GlyRS, GARS, CMT2D, DSMAV, HMN5, SMAD1.
Source
Escherichia Coli.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSPISLPAA ASRSSMDGAG AEEVLAPLRL AVRQQGDLVR KLKEDKAPQV DVDKAVAELK ARKRVLEAKE LALQPKDDIV DRAKMEDTLK RRFFYDQAFA IYGGVSGLYD FGPVGCALKN NIIQTWRQHF IQEEQILEID CTMLTPEPVL KTSGHVDKFA DFMVKDVKNG ECFRADHLLK AHLQKLMSDK KCSVEKKSEM ESVLAQLDNY GQQELADLFV NYNVKSPITG NDLSPPVSFN LMFKTFIGPG.

Product Science Overview

Introduction

Glycyl-tRNA synthetase (GARS) is an essential enzyme involved in protein synthesis. It catalyzes the attachment of glycine to its corresponding tRNA molecule, a crucial step in the translation of genetic information into proteins. The human recombinant form of this enzyme is produced through recombinant DNA technology, allowing for its use in various research and therapeutic applications.

Structure and Function

GARS belongs to the class II aminoacyl-tRNA synthetases, characterized by their unique structural motifs and mechanisms of action. The enzyme is composed of 685 amino acids and has a molecular weight of approximately 77.5 kDa . It features several highly conserved regions, including the class II synthetase motif and an N-terminal region similar to those found in other synthetases .

The primary function of GARS is to ensure the accurate translation of genetic information by catalyzing the esterification of glycine to its cognate tRNA. This process is vital for maintaining the fidelity of protein synthesis, as it ensures that the correct amino acid is incorporated into the growing polypeptide chain .

Biological Properties and Functions

GARS plays a critical role in cellular metabolism and protein synthesis. It is ubiquitously expressed in all cells, reflecting its essential function in maintaining cellular homeostasis. The enzyme’s activity is tightly regulated to ensure the proper balance of aminoacyl-tRNA molecules required for efficient protein synthesis .

In addition to its primary role in translation, GARS has been implicated in various cellular processes, including signal transduction and stress response. Recent studies have shown that GARS can bind to specific RNA structures, such as the Internal Ribosome Entry Site (IRES) elements of certain viruses, to facilitate cap-independent translation initiation . This moonlighting function highlights the enzyme’s versatility and importance in cellular physiology .

Clinical Significance

Mutations in the GARS gene have been associated with several neurological disorders, including Charcot-Marie-Tooth disease type 2D (CMT2D) and distal hereditary motor neuropathy type V (dHMN-V). These conditions are characterized by progressive muscle weakness and atrophy, reflecting the critical role of GARS in maintaining neuronal function .

The human recombinant form of GARS is used in various research applications to study its structure, function, and role in disease. It is also employed in the development of potential therapeutic strategies for treating GARS-related disorders.

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