Recombinant Human Histidine--Trna Ligase, Cytoplasmic (HARS1) Protein (His)

Name: Recombinant Human Histidine--Trna Ligase, Cytoplasmic (HARS1) Protein (His)
Brand: Beta LifeScience
SKU: BLC-09769P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Collections: High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Histidine--Trna Ligase, Cytoplasmic (HARS1) Protein (His) is produced by our Baculovirus expression system. This is a protein fragment.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	P12081
Target Symbol	HARS1
Synonyms	cytoplasmic; EC 6.1.1.21 ; FLJ20491 ; HARS; HisRS; Histidine tRNA ligase, cytoplasmic; histidine translase; Histidine tRNA ligase; Histidine--tRNA ligase; Histidyl tRNA synthetase ; Histidyl-tRNA synthetase; HRS ; Human histidyl tRNA synthetase homolog (HO3) mRNA complete cds; SYHC_HUMAN; USH3B
Species	Homo sapiens (Human)
Expression System	Baculovirus
Tag	N-6His
Target Protein Sequence	AERAALEELVKLQGERVRGLKQQKASAELIEEEVAKLLKLKAQLGPDESKQKFVLKTPKGTRDYSPRQMAVREKVFDVIIRCFKRHGAEVIDTPVFELKETLMGKYGEDSKLIYDLKDQGGELLSLRYDLTVPFARYLAMNKLTNIKRYHIAKVYRRDNPAMTRGRYREFYQCDFDIAGNFDPMIPDAECLKIMCEILSSLQIGDFLVKVNDRRILDGMFAICGVSDSKFRTICSSVDKLDKVSWEEVKNEMVGEKGLAPEVADRIGDYVQQHGGVSLVEQLLQDPKLSQNKQALEGLGDLKLLFEYLTLFGIDDKISFDLSLARGLDYYTGVIYEAVLLQTPAQAGEEPLGVGSVAAGGRYDGLVGMFDPKGRKVPCVGLSIGVERIFSIVEQRLEALEEKIRTTETQVLVASAQKKLLEERLKLVSELWDAGIKAELLYKKNPKLLNQLQYCEEAGIPLVAIIGEQELKDGVIKLRSVTSREEVDVRREDLVEEIKRRTGQ
Expression Range	2-504aa
Protein Length	Partial
Mol. Weight	58.7kDa
Research Area	Epigenetics And Nuclear Signaling
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	Catalyzes the ATP-dependent ligation of histidine to the 3'-end of its cognate tRNA, via the formation of an aminoacyl-adenylate intermediate (His-AMP). Plays a role in axon guidance.
Subcellular Location	Cytoplasm.
Protein Families	Class-II aminoacyl-tRNA synthetase family
Database References	HGNC: 4816 OMIM: 142810 KEGG: hsa:3035 STRING: 9606.ENSP00000425634 UniGene: PMID: 28321488 Despite the similar kinetics, differential scanning fluorimetry revealed that Y454S is less thermally stable than Wild Type HARS, and cells from Y454S patients grown at elevated temperatures demonstrate diminished levels of protein synthesis compared to those of Wild Type cells. The thermal sensitivity associated with the Y454S mutation represents a biochemical basis for understanding Usher Syndrome Type IIIB. PMID: 28632987 Loss of function mutations in histidyl-tRNA synthetase cause a spectrum of inherited peripheral neuropathies PMID: 26072516 Data suggest that by comparing human and trypanosomatid histidyl-tRNA synthetases (HisRS) may provide opportunities for developing specific inhibitors of Trypanosoma brucei HisRS. PMID: 25151410 Secreted histidyl-tRNA synthetase splice variants elaborate major epitopes for autoantibodies in inflammatory myositis. PMID: 24898250 Data indicate that higher anti-Jo1 levels were associated with disease severity in antisynthetase syndrome (ASS) patients. PMID: 24286268 Non-Jo-1 anti-synAb positive patients have decreased survival compared with Jo-1 patients. PMID: 23422076 Findings suggest that histidyl-tRNA synthetase (HARS) is associated with axonal peripheral neuropathy. PMID: 22930593 The crystal structure of a novel splice variant of a tRNA synthetase lacking the entire catalytic domain. PMID: 22958643 Although anti-Jo1 positive patients with antisynthetase syndrome share features of patients with anti-PL7/PL12 antibody, they exhibit many differences regarding clinical phenotype and long-term outcome. PMID: 22326685 Study identified sequence variants in the known disease-causing genes SLC6A3 and FLVCR1, and present evidence to strongly support the pathogenicity of variants identified in TUBGCP6, BRAT1, SNIP1, CRADD, and HARS. PMID: 22279524 genomic organization of the HARS locus and mapping of transcripts originating from a bi-directional promoter controlling the differential expression of these gene PMID: 12056811 Demonstrating histidyl-tRNA synthetase (Jo-1)-specific T cell responses represents a key step in establishing the hypothesis that Jo-1 drives T cell-mediated autoimmunity in Jo-1+ polymyositis. PMID: 12471150 the TSG101 interaction with HRS is a crucial step in endocytic down-regulation of mitogenic signaling and this interaction may have a role in linking the functions of early and late endosomes PMID: 12802020 A proteolytically sensitive conformation of HisRS exists in the lung, the target tissue associated with this autoantibody response. PMID: 17665459 clinical and prognostic profiles of 45 patients displaying anti-histidyl-tRNA synthetase autoantibodies were determined PMID: 17785330

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.