QARS (NM_005051) Human Mass Spec Standard

CAT#: PH301784

QARS MS Standard C13 and N15-labeled recombinant protein (NP_005042)

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USD 1,995.00


Availability*
3 Weeks

Size
    • 10 ug

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Specifications

Product Data
Description QARS MS Standard C13 and N15-labeled recombinant protein (NP_005042)
Species Human
Expression Host HEK293
Expression cDNA Clone or AA Sequence RC201784
Predicted MW 87.6 kDa
Protein Sequence
Tag C-MYC/DDK
Purity > 80% as determined by SDS-PAGE and Coomassie blue staining
Concentration 50 ug/ml as determined by BCA
Labeling Method Labeled with [U- 13C6, 15N4]-L-Arginine and [U- 13C6, 15N2]-L-Lysine
Buffer 100 mM glycine, 25 mM Tris-HCl, pH 7.3. Store at -80C. Avoid repeated freeze-thaw cycles. Stable for 3 months from receipt of products under proper storage and handling conditions.
Reference Data
RefSeq NP_005042
RefSeq Size 2437
RefSeq ORF 2325
Synonyms GLNRS; MSCCA; PRO2195
Locus ID 5859
Cytogenetics 3p21.31
Summary Aminoacyl-tRNA synthetases catalyze the aminoacylation of tRNA by their cognate amino acid. Because of their central role in linking amino acids with nucleotide triplets contained in tRNAs, aminoacyl-tRNA synthetases are thought to be among the first proteins that appeared in evolution. In metazoans, 9 aminoacyl-tRNA synthetases specific for glutamine (gln), glutamic acid (glu), and 7 other amino acids are associated within a multienzyme complex. Although present in eukaryotes, glutaminyl-tRNA synthetase (QARS) is absent from many prokaryotes, mitochondria, and chloroplasts, in which Gln-tRNA(Gln) is formed by transamidation of the misacylated Glu-tRNA(Gln). Glutaminyl-tRNA synthetase belongs to the class-I aminoacyl-tRNA synthetase family. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2013].
*Delivery time may vary from web posted schedule. Occasional delays may occur due to unforeseen complexities in the preparation of your product. International customers may expect an additional 1-2 weeks in shipping.

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